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Journal of Risk and Financial Management, Volume 18, Issue 5

May 2025 - 64 articles

Cover Story: This study examines the impact of the COVID-19 pandemic on market efficiency on stocks (the DAX, Nikkei 225, SSE, and Volatility Index) and cryptocurrencies (Bitcoin and Ethereum) by analyzing price returns, absolute returns, and volatility increments. The effects vary across asset classes. In stocks, the pandemic influenced the Hurst exponent of returns and absolute returns but not volatility increments (except in the SSE, where returns remained unchanged). In cryptocurrencies, while the Hurst exponent remained unaffected, multifractality in returns and absolute returns was impacted. Some Hurst exponent time series exhibited a gradual decline, complicating assessments of pandemic-related effects. Consequently, period-based segmentation may misrepresent the effects, highlighting the need for careful methodological approaches. View this paper
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Articles (64)

  • Essay
  • Open Access
3,049 Views
15 Pages

Student and Practitioner Cheating: A Crisis for the Accounting Profession

  • Donald L. Ariail,
  • Lawrence Murphy Smith and
  • Amine Khayati

In this essay, we propose that the prevalence of cheating by accounting students and serial cheating by accounting practitioners at Big-4 accounting firms are related. Our model of this problem suggests that students who cheat in school become practi...

  • Article
  • Open Access
1 Citations
6,756 Views
20 Pages

The bullwhip effect is the phenomenon of distorted information that causes the amplification of variability of demand in supply chains. We examine the relationship between the bullwhip effect and cost behavior using a large sample of U.S. public firm...

  • Article
  • Open Access
3,949 Views
21 Pages

This study analysed the financial literacy (FL) levels of micro and small entrepreneurs (MSMEs) across 13 countries using data from the 2021 OECD/INFE survey. Focusing on the three core aspects of financial literacy—knowledge, behaviour, and at...

  • Article
  • Open Access
2 Citations
2,163 Views
28 Pages

This study examines the explainability, validity, and applicability of multi-factor models in explaining the returns of Green (eco-friendly), Grey (neutral), and Red (environmentally harmful) EU securities. We apply the Fama–French three-factor...

  • Article
  • Open Access
1 Citations
3,895 Views
22 Pages

A Hybrid Forecasting Model for Stock Price Prediction: The Case of Iranian Listed Companies

  • Fatemeh Keyvani,
  • Farzaneh Nassirzadeh,
  • Davood Askarany and
  • Ehsan Khansalar

This paper introduces advanced computational methods for stock price prediction, integrating Fast Recurrent Neural Networks (FastRNN) with meta-heuristic algorithms such as the Horse Herd Optimization Algorithm (HOA) and the Spotted Hyena Optimizer (...

  • Article
  • Open Access
1 Citations
1,895 Views
19 Pages

This study examines whether market competition reduces managerial slack under downward-sticky CEO pay schemes, thus mitigating the potentially negative link between downward-sticky pay and shareholder’s value. Using data on the Korean product m...

  • Article
  • Open Access
2,560 Views
19 Pages

Divergences in tax policies are evident among European OECD economies, due to varying priorities of efficiency vs. equity, influenced by the forms of direct vs. indirect taxation. The special interest of this paper is to identify how different tax fo...

  • Article
  • Open Access
2 Citations
3,664 Views
23 Pages

This study investigates the relationship between corporate social responsibility performance and financial performance among firms listed on the Johannesburg Stock Exchange in South Africa. Utilising a multi-metric approach, the research incorporates...

  • Article
  • Open Access
1,095 Views
20 Pages

An Innovative Digital Platform for Socioeconomic Forecasting Climate Risks and Financial Management

  • Bruno S. Sergi,
  • Elena G. Popkova,
  • Elena Petrenko,
  • Shakhlo T. Ergasheva,
  • Mkhitar Aslanyan and
  • Vahe Mikayelyan

This article presents an innovative methodology for enhancing statistical databases as reliable sources of information. The study leverages data from “Big Data of the Modern Global Economy: A Digital Platform for Data Mining—2020”,...

  • Article
  • Open Access
2 Citations
1,834 Views
22 Pages

This paper aims to investigate the relationship between governance structure, ownership structure, and financial leverage of corporations in the UK, with a special emphasis on the boardroom gender diversity. The study sample includes 484 UK firms fro...

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J. Risk Financial Manag. - ISSN 1911-8074