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Piero Mazzarisi

DEPS, University of Siena

Via Banchi di Sotto, 55

Siena, 53100

Italy

Scuola Normale Superiore

Piazza dei Cavalieri, 7

Pisa, 56126

Italy

SCHOLARLY PAPERS

14

DOWNLOADS

2,059

TOTAL CITATIONS

3

Scholarly Papers (14)

1.

Online Learning of Order Flow and Market Impact with Bayesian Change-Point Detection Methods

Number of pages: 26 Posted: 13 Jul 2023
Ioanna-Yvonni Tsaknaki, Fabrizio Lillo and Piero Mazzarisi
Scuola Normale Superiore, Università di Bologna and DEPS, University of Siena
Downloads 352 (211,679)

Abstract:

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Regimes, Bayesian methods, Order flow, Market impact

2.

A Machine Learning Approach to Support Decision in Insider Trading Detection

Number of pages: 42 Posted: 13 Dec 2022 Last Revised: 15 Dec 2022
DEPS, University of Siena, University of Siena - Department of Economics and Statistics, CONSOB (Commissione Nazionale per le Società e la Borsa), Scuola Normale Superiore, UCL Institute of Finance and Technology and CONSOB (Commissione Nazionale per le Società e la Borsa)
Downloads 344 (217,753)

Abstract:

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Insider trading, Market abuse, Unsupervised learning, Statistically validated networks

3.

Realized Random Graphs, with an Application to the Interbank Network

Number of pages: 44 Posted: 06 Dec 2021 Last Revised: 30 Sep 2023
Giuseppe Buccheri and Piero Mazzarisi
University of Verona - Department of Economics and DEPS, University of Siena
Downloads 197 (386,064)

Abstract:

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State-space models, Dynamic networks, Interbank market, Systemic risk.

4.

Optimizing Investment Period Length and Strategies for Private Equity Portfolios with Rounds of Financing

Number of pages: 20 Posted: 20 Dec 2023
University College London, Students, University College London - Department of Civil, Environmental & Geomatic Engineering, UCL Institute of Finance and Technology and DEPS, University of Siena
Downloads 186 (407,391)

Abstract:

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Private Equity fund Portfolio,Rounds of financing, Investment Period,Investment strategies,Private Equity Exit, Stochastic Programming

5.

A machine learning approach to support decision in insider trading detection (Metodi sperimentali di machine learning per supportare le decisioni nella detection degli abusi di mercato) CONSOB - Scuola Normale Superiore di Pisa

CONSOB Fintech Series No. 11, 2022
Number of pages: 49 Posted: 27 Dec 2022
DEPS, University of Siena, University of Siena - Department of Economics and Statistics, CONSOB (Commissione Nazionale per le Società e la Borsa), Scuola Normale Superiore, UCL Institute of Finance and Technology and CONSOB (Commissione Nazionale per le Società e la Borsa)
Downloads 180 (420,133)

Abstract:

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insider trading, market abuse, unsupervised learning, statistically validated networks

6.

Dimensionality reduction techniques to support insider trading detection (Tecniche per la riduzione dimensionale dei dati a supporto del rilevamento dei casi di insider trading) Consob - Scuola Normale Superiore di Pisa

CONSOB Fintech Series No. 12, 2024
Number of pages: 18 Posted: 01 Mar 2024 Last Revised: 08 May 2024
University of Siena - Department of Economics and Statistics, Scuola Normale Superiore, CONSOB (Commissione Nazionale per le Società e la Borsa), DEPS, University of Siena, UCL Institute of Finance and Technology and CONSOB (Commissione Nazionale per le Società e la Borsa)
Downloads 145 (508,926)

Abstract:

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Dimensionality reduction, Principal component analysis, Autoencoder, Insider trading, Market abuse, Unsupervised learning

Bayesian Autoregressive Online Change-Point Detection with Time-Varying Parameters

Number of pages: 38 Posted: 24 Jul 2024
Ioanna-Yvonni Tsaknaki, Fabrizio Lillo and Piero Mazzarisi
Scuola Normale Superiore, Università di Bologna and DEPS, University of Siena
Downloads 78 (826,467)

Abstract:

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Time series analysis, Change point detection, Long memory, Time-varying parameters, Bayesian inference

Bayesian Autoregressive Online Change-Point Detection with Time-Varying Parameters

Number of pages: 38 Posted: 30 Jul 2024
Ioanna-Yvonni Tsaknaki, Fabrizio Lillo and Piero Mazzarisi
Scuola Normale Superiore, Università di Bologna and DEPS, University of Siena
Downloads 48 (1,119,531)

Abstract:

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Time series analysis, Change-point detection, Time-varying parameters, Bayesian inference

8.

How Covid mobility restrictions modified the population of investors in Italian stock markets
(L’evoluzione della composizione del retail trading sul mercato azionario italiano a seguito delle restrizioni imposte dalla pandemia da Covid)
CONSOB - Scuola Normale Superiore di Pisa

CONSOB Fintech Series No. 10, 2022
Number of pages: 31 Posted: 03 Aug 2022
CONSOB (Commissione Nazionale per le Società e la Borsa), Scuola Normale Superiore, DEPS, University of Siena, UCL Institute of Finance and Technology, University of Siena - Department of Economics and Statistics and CONSOB (Commissione Nazionale per le Società e la Borsa)
Downloads 109 (645,052)
Citation 1

Abstract:

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Covid; Stock Market, Household finance

9.

When Panic Makes You Blind: A Chaotic Route to Systemic Risk

Number of pages: 24 Posted: 11 May 2018
Piero Mazzarisi, Fabrizio Lillo and Stefano Marmi
DEPS, University of Siena, Università di Bologna and Scuola Normale Superiore
Downloads 80 (803,225)

Abstract:

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systemic risk, backward-looking expectations, leverage cycles, financial innovations, policy, autoregressive dynamics, random dynamical systems

10.

Dynamic Reinforcement Learning Strategies for Venture Capital Fund Portfolios

Number of pages: 47 Posted: 14 Nov 2025
Guanrou Deng, Maurizio Fiaschetti and Piero Mazzarisi
University College London, University College London - Department of Civil, Environmental & Geomatic Engineering and DEPS, University of Siena
Downloads 75 (837,727)

Abstract:

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Later-stage Venture Capital Portfolio, Staged Financing, Reinforcement Learning, Markov Decision Process

11.

CAESar: Conditional Autoregressive Expected Shortfall

Number of pages: 49 Posted: 11 Jul 2024
Federico Gatta, Fabrizio Lillo and Piero Mazzarisi
Scuola Normale Superiore, Scuola Normale Superiore and DEPS, University of Siena
Downloads 72 (860,052)

Abstract:

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Autoregressive Models, Conditional Value at Risk, Expected Shortfall, Risk Management

12.

Tail Granger Causalities and Where to Find Them: Extreme Risk Spillovers vs Spurious Linkages

Number of pages: 22 Posted: 01 Jun 2020
DEPS, University of Siena, Abdus Salam International Centre for Theoretical Physics (ICTP), Scuola Normale Superiore and Università di Bologna
Downloads 70 (875,328)
Citation 2

Abstract:

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Granger causality in risk, Spillover effects, Financial contagion, Autoregressive processes, Likelihood-Ratio test

13.

A high-frequency Approach to Realized Risk Measures

Number of pages: 27 Posted: 21 Oct 2025
Federico Gatta, Fabrizio Lillo and Piero Mazzarisi
Scuola Normale Superiore, Scuola Normale Superiore and DEPS, University of Siena
Downloads 62 (942,565)

Abstract:

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Value at Risk, Expected Shortfall, Latent variables, Subordinated Processes

14.

Tackling Estimation Risk in Kelly Investing using Options

Number of pages: 25 Posted: 08 Sep 2025 Last Revised: 03 Nov 2025
Fabrizio Lillo, Piero Mazzarisi and Ioanna-Yvonni Tsaknaki
Università di Bologna, DEPS, University of Siena and Scuola Normale Superiore
Downloads 61 (951,658)

Abstract:

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Kelly Criterion, Log-Optimal Portfolios, Estimation Risk