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Seminario di Lionel Levine, Martedì 4 Aprile, Sapienza Università di Roma
by Silvestri, Vittoria 28 Mar '23

28 Mar '23

Segnalo il seguente seminario, che si terrà Martedì prossimo in Sapienza. *Martedì 4 Aprile, ore 14:00* Sala di Consiglio, Dipartimento di Matematica, Sapienza Università di Roma *Speaker:* Lionel Levine, Cornell University *Title: *Universality Conjectures For Activated Random Walk *Abstract:* Activated Random Walk is a particle system displaying avalanches on all scales. How universal are these avalanches? I’ll narrate five interlocking conjectures aimed at different aspects of this question: infinite-volume limits, cutoff, incompressibility, rotational symmetry, and hyperuniformity. Joint work with Feng Liang and with Vittoria Silvestri. ******************************** Vittoria Silvestri Assistant Professor Department of Mathematics University "La Sapienza" Piazzale Aldo Moro, 5 00185 - Rome ********************************

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avviso di seminario Simone Floreani
by epirozzi 28 Mar '23

28 Mar '23

*** AVVISO di SEMINARIO Dott. Simone Floreani Oxford University TITOLO A system of interacting Bouchaud trap models Abstract In this talk I will introduce a new interacting particle system consisting of interacting random walks in a trapping environment, known as Bouchaud trap models. I will show that the hydrodynamic equation emerging from such system is the Fractional Kinetics Equation, a sub-diffusive PDE. If time allows, I will also discuss some properties of the same system in contact with reservoirs. Based on projects with A. Chiarini (Padova), F. Redig (Delft) and F. Sau (Trieste). Il seminario si terrà il giorno 31 Marzo 2023 ore 14:00 nella Sala Professori I Livello del Dipartimento Matematica e Applicazioni, Università di Napoli FEDERICO II, Complesso di Monte Sant'Angelo, Via Cintia, Napoli. Link to Teams: https://teams.microsoft.com/l/meetup-join/19%3aMQ4RZDBo_0G-K_PHxKtktVYAczOG… Dott. Giacomo Ascione *** -- Enrica Pirozzi Professore Associato di Probabilità e Statistica, Dipartimento di Matematica e Applicazioni, Università di Napoli FEDERICO II Via Cintia, 80126, NAPOLI

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De Finetti Risk Seminar - April 12, 2023
by Emanuela Rosazza Gianin 28 Mar '23

28 Mar '23

On behalf of the Scientific Committee of the "B. de Finetti Risk Seminars, Milano Lectures on the Mathematical Theory of Economics and Finance”, we are glad to invite you to participate at the following Lecture: Martin Schweizer ETH Zurich Title: Dynamic programming for mean-variance portfolio selection Abstract: We present a dynamic programming approach to solving the mean-variance portfolio selection problem in finite discrete time. This bypasses issues of time-inconsistency and hence does not need the introduction of an equilibrium or game-theoretic approach. The talk is based on joint work with Zhouyi Tan. LOCATION: The seminar will be held on *April 12, *2023 at *18.00,* Aula Di Rappresentanza, Dipart. Matematica, Università di Milano, Via Saldini 50, Milano. Scientific Committee Prof. Simone Cerreia-Voglio (Univ. Bocconi) Prof. Marco Frittelli (Univ. degli Studi di Milano) Prof. Fabio Maccheroni (Univ. Bocconi) Prof. Marco Maggis (Univ. degli Studi di Milano) Prof. Massimo Marinacci (Univ. Bocconi) Prof. Emanuela Rosazza Gianin (Univ. Milano-Bicocca) ****************************************** Emanuela Rosazza Gianin Dipartimento di Statistica e Metodi Quantitativi Università di Milano-Bicocca Edificio U7 – 4° Piano Via Bicocca degli Arcimboldi, 8 20126 Milano Tel. 02 64483208 e-mail: emanuela.rosazza1(a)unimib.it ******************************************

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call for an Assistant Professor in Statistics at IMT School
by Irene Crimaldi 28 Mar '23

28 Mar '23

Dear Colleagues, I would like to draw your attention to the following call for an Assistant Professor (RTD-a) in Statistics at the IMT School for Advanced Studies Lucca (Italy): https://www.imtlucca.it/it/jobopportunity/statistics https://www.imtlucca.it/sites/default/files/2023-ap-statistics-rtda-bando.p… Best regards, Irene Crimaldi Associate Professor in Statistics IMT School for Advanced Studies Lucca Italy

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Seminar by S. De Marco in Padova (Probability and Finance)
by Giorgia Callegaro 27 Mar '23

27 Mar '23

Dear all, you're invited to the seminar in Probability and Finance that will take place Friday 28th April, at 2.30 pm, in hybrid mode at the Math Dept of the University of Padova. More details: * *Speaker*: Stefano De Marco (Ecole Polytechnique) * *Date and time*: 28th April 2023, 2.30pm * *Room (Torre Archimede)*: 2BC30 * *Zoom link*: please find it at *https://www.math.unipd.it/~bianchi/seminari/* <https://www.math.unipd.it/~bianchi/seminari/> * *Title*: *Fractional forward variance models - volatility surfaces and other features* * *Abstract*: We present some features of a class of forward variance models embedding rough volatility models (the so-called rough Bergomi model being the archetypal example): the structure of model-generated VIX smiles, the shapes of model-generated volatility surfaces on the spot, both implied and local, with a focus on the at-the-money volatility skew and the capability of such models to capture this specific feature of market data over different time horizons. We present related numerical methods for option pricing and their efficiency, from Monte Carlo to asymptotic methods. If time permits, we will discuss some dynamic properties of such models, focusing on the dynamics of implied volatilities they generate. See you there! The organisers A. Bianchi, G. Callegaro, M. Formentin -- Giorgia Callegaro Associate Professor Department of Mathematics - University of Padova Via Trieste 63 , I-35121 Padova - ITALY Tel: +39-0498271481 Fax: +39-0498271499 E-Mail: gcallega(a)math.unipd.it <https://webmail.math.unipd.it/horde3/imp/message.php?mailbox=Sent&index=598#> Personal web-page: https://sites.google.com/site/giogiocallegaro/Home

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Seminario congiunto di Probabilità e Fisica Matematica//5 aprile//Fraydoun Rezakhanlou
by Bertini, Lorenzo 27 Mar '23

27 Mar '23

Seminari di Fisica Matematica Dipartimento di Matematica "G. Castelnuovo" Università di Roma La Sapienza Mercoledì 5 aprile, ore 16:15, sala di Consiglio Fraydoun Rezakhanlou (University of Berkeley) Kinetic Theory for Laguerre Tessellations Abstract. In this talk I will discuss a family of Gibbsian measures on the set of Laguerre tessellations. These measures may be used to provide a systematic approach for constructing Gibbsian solutions to Hamilton-Jacobi PDEs by exploring the Eularian description of the shock dynamics. Such solutions depend on kernels satisfying kinetic-like equations reminiscent of the Smoluchowski model for coagulating and fragmenting particles. Tutti gli interessati sono invitati a partecipare. Lorenzo Bertini Dipartimento di Matematica Universita' di Roma La Sapienza | Tel: +39 - 06 4991 4974 P.le A. Moro 2, 00185 Roma | E-mail: bertini(a)mat.uniroma1.it Italy Home page: http://www.mat.uniroma1.it/people/bertini/ama/

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Webinar UMI-PRISMA 3 aprile Campi-Callegaro
by Claudia Ceci 27 Mar '23

27 Mar '23

Buongiorno a tutt*, ho il piacere di annunciare il prossimo webinar del ciclo di seminari online promosso dal Gruppo UMI PRISMA (http://www.umi-prisma.polito.it/index.html) *Lunedì 3 aprile 2023* ore 16-17 LUCIANO CAMPI Title: Correlated equilibria and mean field games Abstract: In the context of mean field games (MFGs), we introduce a generalization of mean field game solution, called correlated solution, which can be seen as the mean field game analogue of a correlated equilibrium. The latter is a generalization of Nash equilibrium for stochastic games. Our notion of solution can be justified in two ways for MFGs in discrete time and finite state space: correlated solutions arise as limits of exchangeable correlated equilibria in restricted (Markov open-loop) strategies for the underlying $N$-player games, and approximate $N$-player correlated equilibria can be constructed starting from a correlated solution to the mean field game. Moreover, those results can be extended to progressive deviations, possibly depending on the whole history of the state and the flow of measures. In this talk we will focus especially on a further extension to continuous time MFGs through the notion of coarse correlated equilibrium. This talk is based on joint works with O. Bonesini, F. Cannerozzi and M. Fischer. ore 17-18 GIORGIA CALLEGARO Title: McKean–Vlasov Game of Commodity Production, Consumption and Trading Abstract: We propose a model where a producer and a consumer can affect the price dynamics of some commodity controlling drift and volatility of, respectively, the production rate and the consumption rate. We assume that the producer has a short position in a forward contract on λ units of the underlying at a fixed price F, while the consumer has the corresponding long position. Moreover, both players are risk-averse with respect to their financial position and their risk aversions are modelled through an integrated-variance penalization. We study the impact of risk aversion on the interaction between the producer and the consumer as well as on the derivative price. In mathematical terms, we are dealing with a two-player linear-quadratic McKean–Vlasov stochastic differential game. Using methods based on the martingale optimality principle and BSDEs, we find a Nash equilibrium and characterize the corresponding strategies and payoffs in semi-explicit form. Furthermore, we compute the two indifference prices (one for the producer and one for the consumer) induced by that equilibrium and we determine the quantity λ such that the players agree on the price. Finally, we illustrate our results with some numerics. In particular, we focus on how the risk aversions and the volatility control costs of the players affect the derivative price. Joint work with R. Aid, O. Bonesini and L. Campi. Il link per partecipare è il seguente https://teams.microsoft.com/l/channel/19%3ad685b25ed15f4821ac5168e63cf98ea4… Microsoft Teams meeting *Join on your computer, mobile app or room device* Click here to join the meeting <https://teams.microsoft.com/l/meetup-join/19%3ad685b25ed15f4821ac5168e63cf9…> Meeting ID: 375 963 625 218 Passcode: tjrYrN Cari saluti, Claudia Ceci Claudia Ceci Dipartimento di Metodi e Modelli per l’Economia, il Territorio e la Finanza (MEMOTEF) Università di Roma La Sapienza Via Del Castro Laurenziano 9 Roma 00161 Italy Email: claudia.ceci(a)uniroma1.it

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Call for expressions of interest in a position of Full Professor
by Giovanni Puccetti 27 Mar '23

27 Mar '23

The Department of Economics, Management and Quantitative Methods (DEMM) of the University of Milan is seeking expressions of interest for a Full Professor (permanent position) in - Statistics - Mathematical Methods for Economics, Finance and Actuarial Science The successful candidate is expected to contribute to the development of the department under the programme “Dipartimento di Eccellenza” (https://www.miur.gov.it/dipartimenti-di-eccellenza) and also to the department’s academic teaching activities (with a teaching load of 120 hrs per year), its strategy and governance, as well as providing scientific leadership and participating in international and national grant applications. Candidates applying for professorship must have obtained the Italian national habilitation (ASN) for full professor (http://abilitazione.miur.it/public/index.php for applications), or must have been holding for at least 3 years an equivalent academic position abroad. Salary is fixed by national standards and starts at 76000 EUR (gross). Taxes reduction may apply for 5 or more years according to the Italian rules for candidates coming from abroad. Interested candidates with a strong record of high impact research may express their interest by submitting the following material (in one single pdf file): 1) A brief motivation letter, including the candidate’s ongoing research, future research plans and her/his potential contribution to DEMM’s research, teaching and governance activities; 2) A full curriculum vitae including a full list of publications and the scientific sectors in which the candidate holds the Italian National Scientific Habilitation (ASN). Applications must be submitted to chiara.tommasi(a)unimi.it (Statistics) giovanni.puccetti(a)unimi.it (Mathematical Methods for Economics, Finance and Actuarial Science) before April 30, 2023. All correspondence and expressions of interest will be kept strictly confidential. The Department guarantees equal gender opportunities in recruitment and career. Disclaimer: Please note that this is just a call for interest, and not a job vacancy advertisement, and that the Department might decide not to open the corresponding position.

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Stochastic geometry conference in Dijon, June 2023
by Pierre-Yves Louis 24 Mar '23

24 Mar '23

ricevo ed inoltro. Pierre-Yves LOUIS From: Arnaud Rousselle<Arnaud.Rousselle(a)u-bourgogne.fr> ----- Dear all, The Annual RT GeoSto conference will take place in Dijon (France), June 12-16, 2023. * Link to the website of the conference:https://geosto23.sciencesconf.org/ * Speakers of the mini-courses (June 12-13): Thomas Opitz (INRAE Avignon) Christoph Thäle (Ruhr-Universität Bochum * Invited speakers of the conference (June 14-16): François Bienvenu (ETH Zürich) Frédéric Chazal (INRIA Saclay) Nicolas Chenavier (Université du Littoral Côte d'Opale) Céline Duval (Université de Lille) Florence Forbes (INRIA Grenoble) Bruno Galerne (Université d'Orleans) Matthieu Jonckheere (CNRS, LAAS Toulouse) Cécile Mailler (University of Bath) Emmanuel Roubin (Université Grenoble Alpes) Laura Sangalli (Politecnico Milano) * Registrations: free but mandatory and open on the website until May 12. * Contributed talks: Some slots for 20 minutes contributed talks are reserved in the schedule; submission on the website until May 12. * Grants for young researchers: We offer financial aid for a limited number of young researchers (Phd students, post-docs) who need support to cover transport and/or accommodation costs. Please contact Arnaud Rousselle (arnaud.rousselle[at]u-bourgogne.fr) if you are interested. Best regards, Arnaud Rousselle on behalf of the organizing committee -- Pierre-Yves LOUIS professeur des universités, Enseignant-chercheur à Agrosup Dijon PAM UMR 02.102, Université Bourgogne Franche-Comté, AgroSup Dijon, chercheur associé à l'Institut de Mathématiques de Bourgogne, UMR 5584 CNRS, Université Bourgogne Franche-Comté, 21000, Dijon, France

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LTI@UniTO seminars | Peter Tankov March 27th @12.00
by Luca Regis 24 Mar '23

24 Mar '23

Dear Colleagues, it is my pleasure to invite you to the following seminar in Quantitative Finance, organised by LTI@UniTO (www.carloalberto.org/lti) and Collegio Carlo Alberto (CCA), that will take place at CCA in Torino and can be followed via zoom. At the event page link you can find the paper, the zoom link to attend online and a button to add the event to your calendars. ------------------------------------------------------------------------------------------- March 22nd @ 12.00 Speaker: Peter Tankov (ENSAE) Title: Decarbonization of financial markets: a mean-field game approach Abstract:We build a model of a financial market where a large number offirms determine their dynamic emission strategies under climate transition risk in the presence of both green-minded and neutral investors.The firms aim to achieve a trade-off between financial and environ-mental performance, while interacting through the stochastic discountfactor, determined in equilibrium by the investors’ allocations. We formalize the problem in the setting of mean-field games and prove the existence and uniqueness of a Nash equilibrium for firms. We then presenta convergent numerical algorithm for computing this equilibrium andillustrate the impact of climate transition risk and the presence ofgreen-minded investors on the market decarbonization dynamics andshare prices. We show that uncertainty about future climate risks andpolicies leads to higher overall emissions and higher spreads betweenshare prices of green and brown companies. This effect is partially reversed in the presence of environmentally concerned investors, whoseimpact on the cost of capital spurs companies to reduce emissions. Event webpage link: https://www.carloalberto.org/event/peter-tankov-ensae/ Zoom link: https://us02web.zoom.us/j/82031514033?pwd=UWdnMU5MRmVlaWI1L294a3c4UlJYUT09 Best regards, Luca Regis -- Luca Regis Associate Professor ESOMAS Department, University of Torino Affiliate, Collegio Carlo Alberto sites.google.com/view/lucaregis Office: +39 011 670 6065 www.carloalberto.org/lti

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Incontro scientifico UMI, Pescara
by Claudia Ceci 24 Mar '23

24 Mar '23

Carissim*, il 30 marzo si svolgerà un incontro scientifico UMI (nell'ambito degli eventi organizzati per il centenario dell'UMI) presso il Dipartimento di Economia dell'Università G. d'Annunzio di Chieti-Pescara. Qui di seguito le informazioni: 30 MARZO 2023 Aula 10 Viale Pindaro 42 , Pescara Dipartimento di Economia Università degli Studi G. d’Annunzio Chieti-Pescara 15,00 Opening *15,15-15,55 Maurizio Parton*, Università degli Studi G. d’Annunzio Chieti-Pescara *Machine learning e matematica* <https://umi.dm.unibo.it/wp-content/uploads/2023/03/bis-abstract1-pescara202…> 16,00 Coffee break *16,20-17.00 Lucia Caramellino*, Università degli Studi di Roma Tor Vergata *Numerical option pricing under stochastic volatility* <https://umi.dm.unibo.it/wp-content/uploads/2023/03/abstract2Milano-2023-.pdf> *Comitato Incontri Scientifici* ( https://umi.dm.unibo.it/comitati/gruppo-di-lavoro-incontri-scientifici/) *Organizzatore locale*: Claudia Ceci ( claudia.ceci(a)uniroma1.it) La partecipazione è libera ma è necessario compilare il form alla pagina https://umi.dm.unibo.it/pescara30marzo23/ Cari saluti, Claudia Ceci ************************************ Claudia Ceci Dipartimento di Metodi e Modelli per l’Economia, il Territorio e la Finanza (MEMOTEF) Università di Roma La Sapienza Via Del Castro Laurenziano 9 Roma 00161 Italy claudia.ceci(a)uniroma1.it

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Seminar by Dr. Vincenzo Candila.
by Giorgio Rizzini 24 Mar '23

24 Mar '23

Dear all, we are glad to announce the following seminar by Dr. *Vincenzo Candila* (University of Salerno) on Wednesday March 29th 2023 starting from 4:30 p.m. in room 2062 at the Department of Statistics and Quantitative Methods, University of Milano-Bicocca (Milan). *On the tennis winner forecasting methods: from the Weighted Elo rates to the network-based indicators* *Vincenzo **Candila* Department of Economics and Statistics University of Salerno *Abstract:* Statistical methods for predicting the winner in tennis matches have increased in popularity over the last two decades. Currently, several techniques are available, such as the regression-based, point-based, and paired-comparison approaches. Within this latter class, the Elo rating is one of the most popular methods to predict the probability of winning tennis matches. Even with its widely recognized merits in terms of good performance, the Elo method only partially considers each player's current form and recent performances. To overcome this drawback, we have proposed a new version of the Elo rating method, labeled Weighted Elo (WElo), where the standard Elo rates are weighted according to the scoreline of the players’ last match. More recently, we have further enlarged the paired-comparison class of models, introducing the network-based indicators for the first time to allow the ratings of the whole set of players to vary every time there is a new match. This work aims to illustrate the main characteristics of the WElo and network-based rates. In the empirical applications, we show the statistically meaningful benefits of using the proposed approaches with respect to many popular competing specifications. *March 29th, 2023 at 4:30 p.m.* *Department of Statistics and Quantitative Methods* *Room **2062* * - Building U7 (Second floor)* *Bicocca degli Arcimboldi street, 8 – 20126 Milan* For further information, please write to rosanna.grassi(a)unimib.it

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Quantitative Finance at Work, 2023
by Davide Pirino 24 Mar '23

24 Mar '23

Dear Colleagues, We are pleased to announce the fourth edition of the *QFin@Work* on *April 28, 2023*, a workshop on the practical use of quantitative methods in Finance and related fields hosted by the Master of Science in Finance and Banking <https://economia.uniroma2.it/master-science/financeandbanking/> of Tor Vergata University of Rome. The goal is to bring together leading experts, especially finance professionals, to learn from their experiences, listen to new ideas, and discuss future perspectives in the field. The schedule is available at https://qfinatwork.com/2023. Attendance is free and participants are encouraged to register soon! Looking forward to having you with us, Rocco Ciciretti (On behalf of the Scientific and Organizing committee)

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A spring day in Probability and Statistical Physics- 21 Aprile 2023
by Luisa Andreis 23 Mar '23

23 Mar '23

Care colleghe e colleghi, Vi annunciamo che prossimamente si terrà l'undicesima giornata di seminari: A SPRING DAY IN PROBABILITY AND STATISTICAL PHYSICS University of Florence Friday 21 April 2023 Lecturers: Fabio Toninelli (Vienna) and Julia Komjathy (Delft) Location: Sala Tricerri, Dipartimento di Matematica e Informatica Ulisse Dini, viale Morgagni 67/a, Firenze, Firenze Ricordiamo che ciascun oratore farà una lezione introduttiva e divulgativa di 45 minuti pensata proprio per i non esperti, seguita da altri 45 minuti di tipo seminario (vedi programma). Maggiori informazioni e aggiornamenti sono reperibili alla pagina web https://sites.google.com/unifi.it/florence-probability-group/home/days-in-p… Note pratiche: a coloro che fossero interessati (per una migliore organizzazione) chiediamo di compilare il seguente Google Form per indicare l'intenzione di partecipare alla giornata e in particolare al pranzo: https://docs.google.com/forms/d/e/1FAIpQLSdksgtnmxrLTE4h9RLyEfx3lo0aMHpowiI… Vi aspettiamo numerosi! Gianmarco Bet e Luisa Andreis Scientific advisory committee: F. Caravenna, E.N.M. Cirillo, F. Colomo, P. Dai Pra, A. De Masi, C. Giardina`, R. Livi, F. Martinelli, I.G. Minelli, B. Scoppola, E. Scoppola. PROGRAMMA Prof. Fabio Toninelli (Technical University of Vienna) Title: Out-of-equilibrium phenomena and stochastic PDEs Prof. Julia Komjathy (Technical University of Delft) Title: TBA 10:30-11:00 Welcome coffee 11.00-11.45 Introductory lecture: Toninelli 11.45-12.15 Break 12.15-13.00 Seminar: Toninelli 13.00-14.30 Lunch 14.30-15.15 Introductory lecture: Komjathy 15.15-15.45 Break 15.45-16.30 Seminar: Komjathy [cid:6D6AED0A-79CF-4C81-9F23-96145C7CAFD5] Luisa Andreis ------------------------------------------------------- RTD-B Dipartimento di Matematica Politecnico di Milano Personal webpage: https://sites.google.com/view/luisaandreis/home Email: luisa.andreis(a)polimi.it<mailto:luisa.andreis@polimi.it>

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Seminar: Francesco Vaccarino at Tor Vergata
by salvi 23 Mar '23

23 Mar '23

Dear all, On Wednesday, February 15th, at 14h00 in Aula Dal Passo at Roma Tor Vergata, RoMaDS (https://www.mat.uniroma2.it/~rds/about.php) will host Francesco Vaccarino (Politecnico di Torino) with the seminar _ _ _"Hodge-Shapley game: a Laplacian-based Shapley-like associated game for eXplainable AI"_ _ _ Abstract: In cooperative game theory, a set of players or decision-makers should negotiate to decide how to allocate the worth gained by the coalition composed of all the players. A value is a solution concept that suggests the outcome of the negotiation among players. Among the many existing alternative solution concepts, it is prevalent the Shapley value solution concept. Its popularity also derives from the property of being a fair allocation, where a set of desirable properties or axioms describes fairness. The axioms characterize the Shapley value in the sense that it is the unique value satisfying those properties; at the same time, the axioms allow deriving a simple explicit combinatorial formula to compute the Shapley value. In our approach, coalitions are the main subjects of cooperation, instead of single players, and, inspired by the Shapley value, the goal is to derive a fair associated game, i.e. an allocation to coalitions satisfying a set of desirable properties. The methodology is based on using the Hodge decomposition of the simplicial complex associated with the partially ordered set of the subsets of the set of players ordered by inclusion. We will motivate this investigation within the framework of Explainable Artificial Intelligence (XAI). Joint work with Antonio Mastropietro (Eurecom - F) We encourage in-person partecipation. Should you be unable to come, here is the link to the event on Teams: https://teams.microsoft.com/l/meetup-join/19%3arfsL73KX-fw86y1YnXq2nk5VnZFw… The seminar is part of the Excellence Project Math@TOV. You can find a schedule with the next events at the following link: https://www.mat.uniroma2.it/~rds/events.php .

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Next OWPS on March 29th: Milton Jara and Otávio Menezes
by Alberto Chiarini 22 Mar '23

22 Mar '23

OWPS's next session will be on Wednesday the 29th of March from 15:00 to 17:00 UTC (Coordinated Universal Time). Our next speakers are: Milton Jara (IMPA) and Otávio Menezes (Purdue University) Title, abstract and the zoom link are below the signature and can be found on the website https://www.owprobability.org/one-world-probability-seminar. If you are interested in the project, we kindly ask you to share this announcement within your community. With best wishes, Alberto Chiarini (Padua) and Adrián González Casanova (Berkeley and México) ----------------------------------------------------------------------------------------------------------- Talk : Milton Jara (IMPA) and Otávio Menezes (Purdue University) Title : CLT for NESS Abstract : Non-equilibrium stationary states (NESS) are ubiquitous in nature, but not well understood from a mathematical point of view. The main features of NESS is the presence of non-trivial currents, which generate long-range correlations in the system. Modeling physical systems by Markov chains, one can restate questions about NESS as the description of invariant measures for non-reversible Markov chains. This opens the way to describe NESS by probabilistic methods. However, basic questions for non-reversible Markov chains, like for example mixing times or quantitative CLTs are not been answered in great generality. Our first talk will introduce NESS with some examples, and it will introduce general and fairly elementary methodology for Markov chains that we believe is well suited to the study of non-reversible Markov chains. The second talk will describe some recent results about the description of NESS for driven-diffusive systems. Zoom-link: https://unipd.zoom.us/j/82893164291?pwd=RHZIeXU2b3pVOE1OSU5tdFd2Y2RPUT09 Meeting ID: 828 9316 4291 Passcode: 251936 If you are having trouble with zoom, or if the capacity of the zoom room gets exceeded, you can also access to the Youtube live stream at the channel of the seminar: https://www.youtube.com/channel/UCiLiEQGTp6bZEhuHDM-WNWQ

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Seminar announcement: M. Tarsia on time-inconsistent recursive stochastic control problems – March 29, 2023 – 13:00-14:00
by Mastrogiacomo Elisa 21 Mar '23

21 Mar '23

Dear Colleagues, On March 29, 2023, 13:00-14:00, Dr. Marco Tarsia (University of Insubria) will give a talk on “Subgame-perfect equilibrium strategies for time-inconsistent recursive stochastic control problems” (joint work with Elisa Mastrogiacomo). The seminar will be held in person and online via the MS Teams platform. Link: https://teams.microsoft.com/l/meetup-join/19%3ameeting_OWU0MDRiNjctYWNmYS00… Place: Dipartimento di Economia, Via Monte Generoso 71, room TBA. Below you can find an abstract of Marco’s talk. You are all invited. *** Abstract In this talk, we discuss about time-inconsistent recursive stochastic control problems, i.e., for which Bellman’s principle of optimality does not hold. In practice, a restriction of an optimal control for a specific initial pair on a later time interval might not be optimal for that corresponding initial pair; this happens, for instance, in dynamic utility maximization problems for investment- consumption strategies under non-exponential discounting. For this class of problems classical optimal controls may fail to exist, or to be relevant in practice, and dynamic programming is not easily applicable. Therefore, the notion of optimality is defined through a game-theoretic framework by means of subgame-perfect equilibrium: we interpret our preference changes which, realistically, are inconsistent over time, as players in a game for which we want to find a Nash equilibrium. The approach followed in our work relies on the stochastic (Pontryagin) maximum principle: we adapt the classical spike variation technique to obtain a characterization of equilibrium strategies in terms of a generalized second-order Hamiltonian function defined through pairs of backward stochastic differential equations, even in the multidimensional case. We emphasize that, similarly to the classical case, equilibrium strategies are characterized through both a necessary condition and a sufficient condition involving the generalized Hamiltonian function, whereas, contrary to the classical case, this sufficient condition works even in the absence of extra convexity assumptions. Going further, our analysis is extended to time-inconsistent recursive stochastic control problems under a constraint defined by means of an additional recursive utility, under appropriate boundedness assumptions. That constraint refers to an expected value and so we adapt Ekeland’s variational principle to this trickier situation. Finally, the theoretical results are applied in the financial field to finite horizon investment-consumption policies with non-exponential actualization. Here the existence of non-trivial equilibrium policies is also ascertained. Best regards, Elisa Mastrogiacomo ----------------------------------------- Professore Associato di Metodi matematici dell'economia e delle scienze attuariali e finanziarie DIPARTIMENTO D'ECCELLENZA 2023/2027 Università degli Studi dell'Insubria Dipartimento di Economia Via Monte Generoso, 71 – 21100 Varese tel. +39 0332/395528 web: www.uninsubria.it<http://www.uninsubria.it/> mail: elisa.mastrogiacomo(a)uninsubria.it<mailto:mario.rossi@uninsubria.it> Chiaramente Insubria! [LOGO-ATENEO-FONDO TRASPARENTE]<http://www.uninsubria.it/> [Facebook] <https://www.facebook.com/uninsubria> [Twitter] <https://twitter.com/Uni_Insubria> [Instagram] <https://instagram.com/uninsubria> [YouTube] <https://www.youtube.com/user/LabVAMultimedia>

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Seminario di Marta Leocata, Martedì 21 Marzo, Sapienza Università di Roma
by Silvestri, Vittoria 21 Mar '23

21 Mar '23

Ricordo il seminario di oggi, e segnalo che sarà trasmesso su zoom al seguente link: *Zoom link: * https://uniroma1.zoom.us/j/98462690288?pwd=SnYrNmpTQXQxZEI2UmN3VW1ucVNBdz09 Meeting ID: 984 6269 0288 Passcode: 683135 *Martedì 21 Marzo, ore 14:00* Sala di Consiglio, Dipartimento di Matematica, Sapienza Università di Roma *Speaker:* Marta Leocata, SNS *Title: *Modeling an example of green transition *Abstract:* The work presented is part of a collaboration between mathematicians and philosophers of ethics, politics, and society aiming to understand mechanisms of green energy transition where some kind of interaction between many subjects and collective behaviors seem to play a role. We have identified as a first example the case of solar photovoltaic, with the purpose of explaining the time series of Italy and of different regions. We use tools from continuous-time Markov chains, mean field limits, optimal control, and mean field games. Then, we specify our analysis on the case of domestic installations. In order to explain them we propose a Markovian model of interacting particle systems to describe the decision of a significant proportion of the general public in Italy on the installation of solar photovoltaics (PVs) and compare our models to real data. We assume that the adoption decision follows a well precise pattern. First, the general public develops a certain level of sensitivity to climate change and environmental issues. Then it plans to install the PVs because she/he has a sufficient amount of information on the benefits of PVs. Finally, it installs PVs because the economic benefits out-weights the costs. In conclusion, we propose some original policies, not based not on financial incentives. This work is in collaboration with Franco Flandoli (SNS), Giulia Livieri (SNS), Silvia Morlacchi (SNS), Fausto Corvino (University of Gothenburg) and Alberto Pirni (SSSA). ******************************** Vittoria Silvestri Assistant Professor Department of Mathematics University "La Sapienza" Piazzale Aldo Moro, 5 00185 - Rome ********************************

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Padova Seminars in Probability and Finance - Nicola Turchi (Università Milano Bicocca)
by alessandra bianchi 20 Mar '23

20 Mar '23

Dear Colleagues, We would like to invite you to the following seminar that will take place on March 31 at 14.30 at the Math Department of Padova. The seminar will be held in person and online via the Zoom platform. The organizers, Alessandra Bianchi, Giorgia Callegaro, Marco Formentin _____________________________________________________ *Speaker*: Nicola Turchi (Università Milano Bicocca) *Title*: High-dimensional random polytopes of the Beta kind *Date and time*: Friday, MARCH 31 at 14.30 *Place*: room 1BC45 at the Department of Mathematics, University of Padova *Zoom link*: https://unipd.zoom.us/j/82935460505 (Meeting ID 829 3546 0505) available also on the webpage https://www.math.unipd.it/~bianchi/seminari/ *Abstract*: Beta polytopes are a class of random polytopes, which arise as convex hulls of independent random points distributed according to a certain radially-symmetric probability distribution supported on the Euclidean ball, called the beta distribution. A prominent reason for the interest surrounding them is that the beta distribution exhibits peculiar properties that make exact computations possible to achieve, contrarily to most other models of randomness with non-independent coordinates. As the space dimension grows, the expected fraction of the volume that these polytopes fill within their supporting balls can be asymptotically negligible or not, depending on the number of points which are picked in each dimension. In this talk we give an overview on how to quantify this statement, first showing a rough threshold for the aforementioned growth and secondly a more precise one, namely how many points are needed to get any fraction in average. Lastly, we show how we can handle more precise asymptotics for the approach towards zero in the lower regimes of points, based on a work in progress with G. Bonnet and Z. Kabluchko. -- Alessandra Bianchi Dip. di Matematica Università di Padova Via Trieste, 63 - 35121 Padova, Italy phone: +39 049 827 14 06 fax: +39 049 827 14 28 e-mail: bianchi(a)math.unipd.it http://www.math.unipd.it/~bianchi/

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Concorso ricercatore/rice a tempo determinato di tipo b) SSD SECS-S/06 - Dip. di Scienze Economiche - Verona
by Cecilia Mancini 20 Mar '23

20 Mar '23

Nella Gazzetta Ufficiale - IV Serie Speciale n. 21 del 17/03/2023 è stato pubblicato l'avviso relativo all'indizione della procedura selettiva per il Dipartimento di Scienze Economiche: RTDB - SSD SECS-S/06 Metodi matematici dell'economia e delle scienze attuariali e finanziarie - Cod. 2023rtdb003 Bando disponibile all'Albo Ufficiale e alla pagina concorsi del sito web di Ateneo all’indirizzo: https://www.univr.it/it/concorsi/personale-docente La scadenza per la presentazione delle domande è il 17 APRILE 2023 alle ore 20.00.

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Re: PhD in theoretical probability/statistical mechanics at UU
by Vanessa Jacquier 20 Mar '23

20 Mar '23

Inoltro per conoscenza. Vanessa Jacquier > > *From: *"Ruszel, W.M. (Wioletta)" <w.m.ruszel(a)uu.nl> > *Date: *Sunday, 19 March 2023 at 22:46 > *To: *stoch-ned-l <stoch-ned-l-bounces(a)lists.science.uu.nl> > *Subject: *PhD in theoretical probability/statistical mechanics at UU > > > > Dear colleagues, > > > > There is a vacancy for a PhD position in theoretical > probability/statistical mechanics at UU. I would appreciate if you > forwarded it to potentially interested students. > > > > *Description of the project:* > > Lattice models from statistical mechanics have been successfully used in > various areas to describe macroscopic properties of interacting systems by > specifying their microscopic interactions. Key objects are Gibbs measures, > which describe macroscopic equilibrium states of large systems of many > interacting objects. In case the interaction is of finite range, the > geometry of Gibbs measures and most of its properties are well understood. > Many interesting physical systems have interactions which decay > polynomially or are of Coulomb type. In this context, many natural > questions are still open. In the PhD project we will investigate the > geometry of the simplex of Gibbs measures with nonlocal interactions, > effective interface models and their scaling limits. The research work lies > in the intersection of theoretical probability, analysis and mathematical > physics. > > > > We are looking for a student with a master’s degree in mathematics and > some affinity to theoretical physics. > > > > For more information and application please go to: > > > https://www.uu.nl/en/organisation/working-at-utrecht-university/jobs/phd-po… > > > > *Deadline for the application*: 29.04.2023. > > > > Kind regards > > Wioletta Ruszel > > >

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Special Issue Applied Stochastic Models in Business and Industry
by Carlo Sgarra 20 Mar '23

20 Mar '23

Dear members of the Random list, As already anticipated, the journal of ISBIS (International Society for Business and Industrial Statistics), Applied Stochastic Models in Business and Industry (ASMBI), is inviting contributions for a special issue devoted to: “Energy Finance & Climate Change” Deadline: 30 June 2023 As it is mentioned in the call for papers, this special issue aims at collecting high-quality contributions on a wide range of theoretical and applied topics in energy finance and climate change, such as (but not limited to): Energy and climate data science, Energy forecasting, Energy innovations, Energy markets, Energy analytics, Energy mix and carbon emission trading, ESG, Green finance & financing energy infrastructure, Climate policy and risk, Climate change & market efficiency, Climate change & pricing uncertainty, Regulation and regulatory risk, Renewable sources, Risk measurement and management, Storage devices, Sustainable finance. Contributions from multiple areas are welcome, and they might range from more exquisitely technical aspects of modeling to the practical implications of the actual uncertainties on the energy market recent developments, highlighting their innovative applications in an ever evolving complex environment. The displayed models, the computational techniques and the data methodologies can rely on stochastic processes, statistical analysis, time series forecasting, derivative pricing and hedging, machine learning, Monte Carlo simulations, data mining, risk estimation and management, and related tools. Papers should present innovative methodologies and/or forceful applications of existing methods. All submissions will go through the standard, selective review process of ASMBI via https://wiley.atyponrex.com/journal/ASMB<https://wiley.atyponrex.com/journal/ASMB%20is%2030%20June%202023>. Please follow the ASMBI author submission guidelines given on the ASMBI website and click on the box about submissions for special issues, selecting "Energy Finance” when prompted. The Guest Editors of the special issue are: - Roberto Baviera (roberto.baviera(a)polimi.it) - Carlo Sgarra (carlo.sgarra(a)polimi.it) - Tiziano Vargiolu (vargiolu(a)math.unipd.it) - Rituparna Sen (rsen(a)isichennai.res.in) For any information about ASMBI, please contact its Editor-in-Chief, Fabrizio Ruggeri (fabrizio(a)mi.imati.cnr.it) Waiting for your contribution The Guest Editors: Roberto Baviera, Rituparna Sen, Carlo Sgarra, Tiziano Vargiolu

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LTI@Unito Seminars| Dimitri Vayanos (March 7) and Johan Hombert (March 8) @ 12.00
by Luca Regis 17 Mar '23

17 Mar '23

Dear Colleagues, it is my pleasure to invite you to the following two seminars in Quantitative Finance, organised by LTI@UniTO (www.carloalberto.org/lti) and Collegio Carlo Alberto (CCA): ------------------------------------------------------------------------------------------- March 7th @ 12.00 (webinar) Speaker: Dimitri Vayanos (LSE) Title: Passive Investing and the Rise of Mega-Firms Abstract: We study how passive investing affects asset prices. Flows into passive funds raise dispropor-tionately the stock prices of the economy’s largest firms—even when the indices tracked by the funds include all firms. Passive flows also raise the largest firms’ return volatility the most, andraise the aggregate stock market even when they are entirely due to investors switching from active to passive. These effects arise because of the re-pricing of systematic and large firms’idiosyncratic risk. We estimate that passive investing caused the 50 largest US firms to rise 30%more than the US stock market over 1996–2020. Zoom link: https://us02web.zoom.us/j/85025027662?pwd=ajU0NjU3MGZRMitQTkZRT0ZjR0F5UT09 Event webpage link: https://www.carloalberto.org/event/dimitri-vayanos-london-school-of-economi… ----------------------------------------------- March 8th @ 12.00 (hybrid seminar) Speaker: Johan Hombert (HEC Paris) Title: Innovation Booms, Easy Financing, and Human Capital Accumulation Abstract: Innovation booms occur frequently and are often fueled by easy financing that allows new technology firms to pay high wages that attracts skilled labor. Using the late 1990s Information and Communication Technology (ICT) boom as a laboratory, we show that skilled labor joining this new sector experienced sizeable long-term earnings losses. We trace these losses to skill obsolescence, that cannot be explained by either selection or the subsequent ICT sector bust. During the boom, capital flowed more to firms whose workers would ultimately experience a larger productivity decline. This suggests that financial capital can amplify the negative effects of labor reallocation into booming sectors on aggregate labor productivity. Zoom link: https://us02web.zoom.us/j/89743168691?pwd=bU1qMDZSVStBTjJtcU9nZXNWZS8zdz09 Event webpage link: https://www.carloalberto.org/event/johan-hombert-hec-paris/ Best regards, Luca Regis -- Luca Regis Associate Professor ESOMAS Department, University of Torino Collegio Carlo Alberto sites.google.com/view/lucaregis Office: +39 011 670 6065 www.carloalberto.org/lti

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BioInference2023 - 2nd announcement
by Massimiliano Tamborrino 17 Mar '23

17 Mar '23

Dear all, We are delighted to announce the 2nd BioInference conference (https://bioinference.github.io/2023) taking place at the Doctoral Training Centre at the University of Oxford on the 8th-9th June 2023. It is our pleasure to confirm that this year's invited speakers are * Ritabrata Dutta<https://warwick.ac.uk/fac/sci/statistics/staff/academic-research/dutta/>, University of Warwick * Marina Evangelou<https://www.imperial.ac.uk/people/m.evangelou>, Imperial College London * Robin Thompson<https://www.robin-thompson.co.uk/>, University of Warwick * Juliette Unwin<https://www.imperial.ac.uk/people/h.unwin>, Imperial College London * Darren Wilkinson<https://darrenjw.github.io/>, Durham University The registration fee for in-person attendance (including lunch and refreshments for the two days) is £70. Moreover, the deadline for abstract submissions for the conference has been extended to 31st March. Abstracts for contributed talks or posters on work either relating to statistical methods development (so long as those methods are applicable to biological systems) or on the application of statistical methods to solve biological problems can be submitted via a Google form (shorturl.at/dfo68<http://shorturl.at/dfo68>). The conference organising committee is committed to ensuring fair participation of individuals across all career stages, genders, races and ethnicities, ages, geographic locations, and universities. Kind regards, The BioInference Organisers Ioana Bouros (Oxford); Fergus Cooper (Oxford); Richard Creswell (Oxford); Aden Forrow (Maine); Ben Lambert (Exeter); Chon Lok Lei (Macau); Massimiliano Tamborrino (Warwick); Tom Thorne (Surrey)

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40th Linz Seminar on Fuzzy Set Theory: Copulas – Theory and Applications
by Fabrizio, Antonio DURANTE 17 Mar '23

17 Mar '23

Dear Colleague, it is our pleasure to invite you to participate in the 40th Linz Seminar on Fuzzy Set Theory <https://www.flll.jku.at/linz2023> Copulas – Theory and Applications Bildungshaus St. Magdalena, Linz, Austria June 6-9, 2023 Since their inception in 1979 the Linz Seminars on Fuzzy Sets have emphasized the development of mathematical aspects in the context of fuzzy sets by bringing together researchers in fuzzy sets and established mathematicians whose work outside the fuzzy setting can provide direction for further research. The philosophy of the seminar has always been to keep it deliberately small and intimate so that informal critical discussions remain central. LINZ 2023 will be the 40th seminar carrying on this tradition and is devoted to the theme "Copulas — Theory and Applications". The goal of the seminar is to present and to discuss recent advances of copulas and related functions and their applications in pure and applied fields. Accordingly, the topics of the Seminar will include but not be limited to: · Copula theory o From bivariate to multivariate copulas o Dependence measures and association o Approximation and convergence of copulas o Measure theoretic aspects of copulas o Copulas in the discrete setting · Copula applications o Applications in pure and applied fields o Estimation in the context of copulas o Copula methods in Data Science o Feature selection · Relationship to other aggregation functions o Triangular (co)norms, implications o Uninorms, nullnorms o Quasi-copulas, semicopulas o Distribution functions The "Linz" tradition has these key features: the number of participants of the Linz Seminars is usually bounded above by 40 with broad international representation and an enjoyable mix of pure and applied interests; there are no parallel sessions so that all participants focus on each presentation and fully engage in each topic; and there is time for discussion of each presentation, with follow up round table(s) for discussion of open problems and issues raised in the talks. In particular, young researchers (PhD students, junior post-docs) are encouraged to submit their latest results. Please submit your extended abstract (up to 4 pages) by March 29th, 2023 following the guidelines provided at the webpage of the seminar. Further Information about the seminar(s) is available at: https://www.flll.jku.at/linz2023 and https://www.flll.jku.at/linzseminars We look forward to your contributions and to welcoming you in Linz, Best regards, Fabrizio Durante, Susanne Saminger-Platz, Wolfgang Trutschnig (Program Chairs) --------------------------------------------------------- Fabrizio Durante Dipartimento di Scienze dell'Economia Centro Ecotekne Pal. C S.P. 6, Lecce - Monteroni LECCE (ITALY) Phone: +39 0832 29 8672 https://sites.google.com/site/fbdurante/ --

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