Email: **and[dot]zaccaria[at]gmail[dot]com**

#### Awards

- Merit-based PhD scholarship sponsored by the "Sapienza" University of Rome
- 2018 Best Paper Award at NetSci, the main conference on Network Science (www.risk.net/static/jntf-x-netsci2018-awards).

#### Research interests and main achievements

- 2013-present:
**Economic Complexity**, an innovative, data-driven approach to Economics, combining complexity science and machine learning. This methodology has been adopted by the World Bank Group for the study of about 70 countries. In particular, I focused on:- - The introduction of a directed network of products to
**study and predict the development of countries**[13]. - - The investigation of the dynamics that make countries
**escape from the poverty trap**[24]. - - A multilayer approach for the analysis of the
**interplay among Science, Technology, and Production**that is able to connect, for instance, the patenting activity of a given country with its industrial production with a time delay of up to 30 years [32]. Video: www.youtube.com/watch?v=k2xVrR3q2I8 - - I am a guest editor for a special issue of the journal Entropy, title: Economic Fitness and Complexity (www.mdpi.com/journal/entropy/special_issues/Economic_Complexity)

- - The introduction of a directed network of products to
- 2016-present: I have shown that
**firms**that diversify their**patenting**activity in a coherent way have higher**productivity**[31]. - 2010-2015: I explained extreme price movements of stocks in terms of
**microstructural liquidity crises**[5, 14] and studied the connection between traders’ strategies and various empirical properties of**financial markets**[6]. - 2011-2014: Analysis of
**financial time series**, in particular:- - Introduction of a new stylized fact, particularly relevant for extreme events [9], and
- - Proof that technical trading leads to memory effects in price dynamics [12].

- 2011-2013: Application of complexity tools (networks, agent-based models, and Kolmogorov complexity, among others) to the development of new income assessment systems for the Italian fiscal agencies. Elaboration of an original algorithm for the
**detection of tax evasion**. - 2008-2013: Development of a minimal
**agent-based model**to extract the key features to explain the origin and**self-organization**of the main empirical properties of financial markets [1, 2, 3, 4, 7].

#### Publications

1. V.Alfi, L. Pietronero, and A. ZaccariaSelf-Organization for the Stylized Facts and Finite-Size Effects in a Financial Market ModelEPL86, 58003 (2009) 2. V. Alfi, M. Cristelli, L. Pietronero, and A. ZaccariaMinimal Agent Based Model for Financial Markets I: Origin and Self-Organization of Stylized FactsEur. Phys. J. B67, 385-397 (2009) 3. V. Alfi, M. Cristelli, L. Pietronero, and A. ZaccariaMinimal Agent Based Model for Financial Markets II: Statistical Properties of the Linear and Multiplicative DynamicsEur. Phys. J. B67, 399-417 (2009) 4. V. Alfi, M. Cristelli, L. Pietronero, and A. ZaccariaMechanisms of Self-Organization and Finite Size Effects in a Minimal Agent Based ModelJ. Stat. Mech.P03016 (2009) 5. M. Cristelli, V. Alfi, L. Pietronero, and A. ZaccariaLiquidity Crisis, Granularity of the Order Book and Price FluctuationsEur. Phys. J. B73, 41-49 (2010) 6. A. Zaccaria, M. Cristelli, V. Alfi, F. Ciulla, and L. PietroneroAsymmetric Statistics of Order Books: The Role of Discreteness and Evidence for Strategic Order PlacementPhys. Rev. E81, 066101 (2010) 7. V. Alfi, M. Cristelli, L. Pietronero, and A. ZaccariaReconstructing Agents’ Strategies from Price BehaviorIn F. Abergel, B.K. Chakrabarti, A. Chakraborti, and M. Mitra, editors, Econophysics of Order-driven Markets,Proceedings of Econophys-Kolkata V, 109–124. Springer-Verlag, 2011 8. M. Cristelli, L. Pietronero, and A. ZaccariaCritical Overview of Agent-Based Models for EconomicsIn F. Mallamace and E. H. Stanley, editors,Proceedings of the School of Physics "E. Fermi", course CLXXVI, 2011, Varenna e-print ArXiv 1101.1847 9. M. Cristelli, A. Zaccaria, and L. PietroneroUniversal Relation between Skewness and Kurtosis in Complex DynamicsPhys. Rev. E85, 066108 (2012) 10. A. Tacchella, M. Cristelli, A. Zaccaria, and L. PietroneroTime Evolution of Financial Cross-Correlation Coefficients across Market CrisisInt. J. Mod. Phys. Conf. Ser., 16:82-92 (2012) 11. A. Zaccaria, M. Cristelli, and L. PietroneroReaction to Extreme Events in a Minimal Agent Based ModelIn F. Abergel, B.K. Chakrabarti, A. Chakraborti, and A. Ghosh, editors,Econophysics of Systemic Risk and Network Dynamics, 133–140. New Economic Windows, Springer-Verlag, 2013 12. F. Garzarelli, M. Cristelli, G. Pompa, A. Zaccaria, and L. PietroneroMemory Effects in Stock Price Dynamics: Evidences of Technical TradingSci. Rep.4, 4487 (2014) 13. A. Zaccaria, M. Cristelli, A. Tacchella, and L. PietroneroHow the Taxonomy of Products Drives the Economic Development of CountriesPLoS ONE9 (12): e113770, (2014) 14. F. Corradi, A. Zaccaria and L. PietroneroLiquidity Crises on Different Time ScalesPhys. Rev. E,92, 062802 (2015) 15. M Cristelli, L Pietronero, A Tacchella, and A ZaccariaBeing fit in the ASEAN countries. An econometric analysisIn Romeo Orlandi, editorASEAN For Italy.Il Mulino, (2015)16. M. Cristelli, A. Tacchella, A. Zaccaria, and L. PietroneroGrowth Scenarios for sub-Saharan Countries in the Framework of Economic ComplexityWorking paper.Available athttps://mpra.ub.uni-muenchen.de/71594/(2015) 17. A. Zaccaria, M. Cristelli, R. Kupers, A. Tacchella and L. PietroneroA Case Study for a New Metrics for Economic Complexity: The NetherlandsJ. Econ. Interact. Coord .1, 11:151-169, (2016) 18. E. Pugliese, A. Zaccaria, and L. PietroneroOn the Convergence of the Fitness-Complexity AlgorithmEur. Phys. J. Spec. Top.225: 1893 (2016) 19. M. A. Annunziata, A. Petri, G. Pontuale, and A. ZaccariaHow log-normal is your country? An analysis of the statistical distribution of the exported volumes of productsEur. Phys. J. Spec. Top.225: 1985 (2016) 20. G. Cimini, A. Zaccaria, and A. GabrielliInvestigating the interplay between fundamentals of national research systems: performance, investments and international collaborationsJournal of Informetrics.1,10:200-211 (2016) 21. E. Pugliese, G.L. Chiarotti, A. Zaccaria, and L. PietroneroEconomic Complexity as a Determinant of the Industrialization of CountrieSustaining High Growth in India, 87 Cambridge University Press (2017) 22. O. Angelini, M. Cristelli, A. Zaccaria, and L. Pietronero.The complex dynamics of products and its asymptotic propertiesPloS one, 12(5):e0177360, (2017) 23. E. Pugliese, G. L. Chiarotti, A. Zaccaria, and L. PietroneroComplex economies have a lateral escape from the poverty trapPloS one, 12(1):e0168540, (2017) 24. A. Gabrielli, M. Cristelli, D. Mazzilli, A. Tacchella, A. Zaccaria, and L. PietroneroWhy we like the ECI+ algorithmarXiv:1708.01161, (2017) 25. L. Pietronero, M. Cristelli, A. Gabrielli, D. Mazzilli, E. Pugliese, A. Tacchella, and A. ZaccariaEconomic Complexity: "Buttarla in caciara" vs a constructive approacharXiv:1709.05272, (2017) 26. A. Tacchella, S. Romano, M. Ferraldeschi, M. Salvetti, A. Zaccaria, A. Crisanti, and F. GrassiCollaboration between a human group and artificial intelligence can improve prediction of multiple sclerosis course: a proof-of-principle studyF1000Research, 6 (2017) 27. G. Poce, G. Cimini, A. Gabrielli, A. Zaccaria, G. Baldacci, M. Polito, M. Rizzo, and S. Sabatini.What do central counterparties default funds really cover? A network-based stress test answerJournal of Network Theory in Finance4 (4), 43-57 (2018) 28. A. Zaccaria, S. Mishra, M. Cader, and L. PietroneroIntegrating services in the economic fitness approachWorld bank policy research working paper,WPS8485, (2018) 29. A. Sbardella, E. Pugliese, A. Zaccaria, and P. ScaramozzinoThe role of complex analysis in modeling economic growthEntropy20 (11), 883, (2018) 30. A. Zaccaria, M. Del Vicario, W. Quattrociocchi, A. Scala, and L. PietroneroPopRank: Ranking pages' impact and users' engagement on FacebookPloS one14 (1), e0211038 (2019) 31. E. Pugliese, L. Napolitano, A. Zaccaria, and L. PietroneroCoherent diversification in corporate technological portfoliosPloS one14 (10), (2019) 32. E. Pugliese, G. Cimini, A. Patelli, A. Zaccaria, L. Pietronero, A. GabrielliUnfolding the innovation system for the development of countries: coevolution of Science, Technology and ProductionScientific reports9 (1), 1-12 (2019) 33. G. De Marzo, A. Gabrielli, A. Zaccaria, L. PietroneroDeviations from Zipf's law contain more information than Zipf's law itselfarXiv:1911.04844 (2019) 34. A. Palmucci, H. Liao, A. Napoletano, A. ZaccariaWhere is your field going? A Machine Learning approach to study the relative motion of the domains of PhysicsarXiv:1911.02890 (2019)