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Efstathios Polyzos

Personal Details

First Name:Efstathios
Middle Name:
Last Name:Polyzos
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In ASCII letters:
RePEc Short-ID:ppo823
[This author has chosen not to make the email address public]
https://www.zu.ac.ae/main/en/colleges/colleges/__college_of_interdisciplinary_studies/faculty_and_st

Affiliation

Department of Business Transformation
Zayed University

Dubai, United Arab Emirates
https://www.zu.ac.ae/main/en/colleges/colleges/__college_of_interdisciplinary_studies/business_transformation/index
RePEc:edi:dbtzuae (more details at EDIRC)

Research output

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Jump to: Working papers Articles Chapters

Working papers

  1. Samuel Kaplan & Efstathios Polyzos & David Tercero-Lucas, 2025. "Crypto Listens: Asymmetric Reactions to Text-based Signals in Central Bank Communications," Working Papers 365, Red Nacional de Investigadores en Economía (RedNIE).
  2. K. Peren Arin & Efstathios Polyzos & Marcel Thum, 2023. "The Populist Voter: A Machine Learning Approach for the Individual Characteristics," CESifo Working Paper Series 10472, CESifo.
  3. Samuel Federico Kaplan & Arin Kerim Peren & Polyzos Efstathios & Spagnolo Nicola, 2022. "Stock Market Responses to Monetary Policy Shocks: Universal Firm-Level Evidence," Asociación Argentina de Economía Política: Working Papers 4571, Asociación Argentina de Economía Política.
  4. Stathis Polyzos & Anestis Fotiadis & Aristeidis Samitas, 2021. "COVID-19 Tourism Recovery in the ASEAN and East Asia Region: Asymmetric Patterns and Implications," Working Papers DP-2021-12, Economic Research Institute for ASEAN and East Asia (ERIA).

Articles

  1. Fotiadis, Anestis & Polyzos, Efstathios & Huan, Tzung-Cheng, 2026. "Rethinking COVID-19 tourism recovery," Annals of Tourism Research, Elsevier, vol. 118(C).
  2. Efstathios Polyzos & Aristeidis Samitas & Ilias Kampouris, 2026. "Quantifying Market Efficiency: Information Dissemination Through Social Media," International Journal of Finance & Economics, John Wiley & Sons, Ltd., vol. 31(3), pages 3480-3502, July.
  3. Mazur, Mieszko & Polyzos, Efstathios, 2026. "Tokenized stocks and tracking errors: Evidence on pricing efficiency," Finance Research Letters, Elsevier, vol. 106(C).
  4. Arin, K. Peren & Kaplan, Samuel & Polyzos, Efstathios & Spagnolo, Nicola, 2025. "Stock market responses to monetary policy shocks: Firm-level evidence," Journal of Macroeconomics, Elsevier, vol. 83(C).
  5. Polyzos, Efstathios & Youssef, Layal, 2025. "Investigating the impact of global events on cryptocurrency performance: a big data event study approach," Journal of International Money and Finance, Elsevier, vol. 157(C).
  6. Anastasia Spyridou & Efstathios Polyzos & Aristeidis Samitas, 2025. "Green assets are not so green: assessing environmental outcomes using machine learning and local projections," Financial Innovation, Springer;Southwestern University of Finance and Economics, vol. 11(1), pages 1-38, December.
  7. Efstathios Polyzos & Aristeidis Samitas & Ghulame Rubbaniy, 2024. "The perfect bail‐in: Financing without banks using peer‐to‐peer lending," International Journal of Finance & Economics, John Wiley & Sons, Ltd., vol. 29(3), pages 3393-3412, July.
  8. Efstathios Polyzos & Costas Siriopoulos, 2024. "Autoregressive Random Forests: Machine Learning and Lag Selection for Financial Research," Computational Economics, Springer;Society for Computational Economics, vol. 64(1), pages 225-262, July.
  9. Peren K. Arin & Efstathios Polyzos & Marcel Thum, 2024. "Understanding the Populist Voter," EconPol Forum, CESifo, vol. 25(02), pages 14-18, March.
  10. Ursula Münch & Armin Nassehi & Joe Kaeser & Knut Bergmann & Matthias Diermeier & Florian Dorn & David Gstrein & Florian Neumeier & Manuel Funke & Moritz Schularick & Christoph Trebesch & Kerim Peren A, 2024. "Wohlstand in Gefahr? Ursachen und Folgen von Populismus," ifo Schnelldienst, ifo Institute - Leibniz Institute for Economic Research at the University of Munich, vol. 77(03), pages 03-32, March.
  11. Efstathios Polyzos & Ghulame Rubbaniy & Mieszko Mazur, 2024. "Efficient Market Hypothesis on the blockchain: A social‐media‐based index for cryptocurrency efficiency," The Financial Review, Eastern Finance Association, vol. 59(3), pages 807-829, August.
  12. Polyzos, Efstathios, 2023. "Inflation and the war in Ukraine: Evidence using impulse response functions on economic indicators and Twitter sentiment," Research in International Business and Finance, Elsevier, vol. 66(C).
  13. Emilie Rutledge & Efstathios Polyzos, 2023. "The rise of GCC‐East Asian trade: A cointegration approach to analysing trade relationships," The World Economy, Wiley Blackwell, vol. 46(7), pages 2231-2246, July.
  14. Polyzos, Efstathios & Fotiadis, Anestis & Huan, Tzung-Cheng, 2023. "From Heroes to Scoundrels: Exploring the effects of online campaigns celebrating frontline workers on COVID-19 outcomes," Technology in Society, Elsevier, vol. 72(C).
  15. Ghulame Rubbaniy & Ali Awais Khalid & Shoaib Ali & Efstathios Polyzos, 2023. "Cyclicality of liquidity creation: Nonlinear evidence from US bank holding companies," Journal of Financial Research, Southern Finance Association;Southwestern Finance Association, vol. 46(4), pages 1165-1185, December.
  16. Ghulame Rubbaniy & Ali Awais Khalid & Stathis Polyzos & Balqees Naser Almessabi, 2022. "Cyclicality of capital adequacy ratios in heterogeneous environment: A nonlinear panel smooth transition regression explanation," Managerial and Decision Economics, John Wiley & Sons, Ltd., vol. 43(6), pages 1960-1979, September.
  17. Polyzos, Efstathios, 2022. "Examining the asymmetric impact of macroeconomic policy in the UAE: Evidence from quartile impulse responses and machine learning," The Journal of Economic Asymmetries, Elsevier, vol. 26(C).
  18. Efstathios Polyzos & Aristeidis Samitas & Konstantinos Syriopoulos, 2022. "Islamic banking, efficiency and societal welfare: a machine-learning, agent-based study," International Journal of Islamic and Middle Eastern Finance and Management, Emerald Group Publishing Limited, vol. 16(4), pages 777-801, December.
  19. Polyzos, Efstathios & Kuck, Simon & Abdulrahman, Khadija, 2022. "Demographic change and economic growth: The role of natural resources in the MENA region," Research in Economics, Elsevier, vol. 76(1), pages 1-13.
  20. Samitas, Aristeidis & Kampouris, Elias & Polyzos, Stathis, 2022. "Covid-19 pandemic and spillover effects in stock markets: A financial network approach," International Review of Financial Analysis, Elsevier, vol. 80(C).
  21. Polyzos, Efstathios & Wang, Fang, 2022. "Twitter and market efficiency in energy markets: Evidence using LDA clustered topic extraction," Energy Economics, Elsevier, vol. 114(C).
  22. Rubbaniy, Ghulame & Polyzos, Stathis & Rizvi, Syed Kumail Abbas & Tessema, Abiot, 2021. "COVID-19, Lockdowns and herding towards a cryptocurrency market-specific implied volatility index," Economics Letters, Elsevier, vol. 207(C).
  23. Stathis Polyzos & Khadija Abdulrahman & Jagadish Dandu, 2021. "Effects of financial instability on subjective well-being: a preference-based approach," International Journal of Social Economics, Emerald Group Publishing Limited, vol. 48(7), pages 982-998, March.
  24. Polyzos, Stathis & Samitas, Aristeidis & Kampouris, Ilias, 2021. "Economic stimulus through bank regulation: Government responses to the COVID-19 crisis," Journal of International Financial Markets, Institutions and Money, Elsevier, vol. 75(C).
  25. Fotiadis, Anestis & Polyzos, Stathis & Huan, Tzung-Cheng T.C., 2021. "The good, the bad and the ugly on COVID-19 tourism recovery," Annals of Tourism Research, Elsevier, vol. 87(C).
  26. Polyzos, Stathis & Samitas, Aristeidis & Katsaiti, Marina-Selini, 2020. "Who is unhappy for Brexit? A machine-learning, agent-based study on financial instability," International Review of Financial Analysis, Elsevier, vol. 72(C).
  27. Aristeidis Samitas & Aggelos Armenatzoglou & Ioannis Kinias & Stathis Polyzos, 2019. "Modelling the underlying factors for flexible power plant valuation," International Journal of Economics and Business Research, Inderscience Enterprises Ltd, vol. 18(2), pages 155-172.
  28. Themistoclis Pantos & Stathis Polyzos & Aggelos Armenatzoglou & Ilias Kampouris, 2019. "Volatility Spillovers in Electricity Markets: Evidence from the United States," International Journal of Energy Economics and Policy, International Journal of Energy Economics and Policy, vol. 9(4), pages 131-143.
  29. Samitas, Aristeidis & Polyzos, Stathis & Siriopoulos, Costas, 2018. "Brexit and financial stability: An agent-based simulation," Economic Modelling, Elsevier, vol. 69(C), pages 181-192.
  30. Samitas, Aristeidis & Polyzos, Stathis, 2016. "Freeing Greece from capital controls: Were the restrictions enforced in time?," Research in International Business and Finance, Elsevier, vol. 37(C), pages 196-213.
  31. Aristeidis Samitas & Stathis Polyzos, 2015. "To Basel or not to Basel? Banking crises and contagion," Journal of Financial Regulation and Compliance, Emerald Group Publishing Limited, vol. 23(3), pages 298-318, July.

Chapters

  1. Mieszko Mazur & Efstathios Polyzos, 2024. "Non-fungible tokens (NFTs)," Chapters, in: Henrik Cronqvist & Desiree-Jessica Pely (ed.), The Elgar Companion to Decentralized Finance, Digital Assets, and Blockchain Technologies, chapter 14, pages 280-297, Edward Elgar Publishing.

More information

Research fields, statistics, top rankings, if available.

Statistics

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NEP Fields

NEP is an announcement service for new working papers, with a weekly report in each of many fields. This author has had 4 papers announced in NEP. These are the fields, ordered by number of announcements, along with their dates. If the author is listed in the directory of specialists for this field, a link is also provided.
  1. NEP-BIG: Big Data (3) 2021-08-09 2023-07-17 2025-07-14
  2. NEP-CBA: Central Banking (2) 2023-04-03 2025-07-14
  3. NEP-FDG: Financial Development and Growth (2) 2023-04-03 2025-07-14
  4. NEP-MON: Monetary Economics (2) 2023-04-03 2025-07-14
  5. NEP-CDM: Collective Decision-Making (1) 2023-07-17
  6. NEP-CFN: Corporate Finance (1) 2023-04-03
  7. NEP-CMP: Computational Economics (1) 2021-08-09
  8. NEP-EUR: Microeconomic European Issues (1) 2023-07-17
  9. NEP-FOR: Forecasting (1) 2021-08-09
  10. NEP-ISF: Islamic Finance (1) 2021-08-09
  11. NEP-PAY: Payment Systems and Financial Technology (1) 2025-07-14
  12. NEP-POL: Positive Political Economics (1) 2023-07-17
  13. NEP-SEA: South East Asia (1) 2021-08-09
  14. NEP-TUR: Tourism Economics (1) 2021-08-09

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