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Risks, Volume 11, Issue 7

2023 July - 25 articles

Cover Story: We analyze intraday price volatility using a multiscale approach with fractional Brownian motion and microstructure noise. Our model captures various volatility patterns suitable for intraday prices. We introduce estimation algorithms, including a new Hurst exponent estimator for a noisy fractional Brownian motion model. Applying our approach to real-world high-frequency data of U.S. stocks and ETFs, we estimate model parameters and reveal how volatility changes across different time scales. We find that the Hurst exponent and noise level exhibit an intraday pattern, with higher noise ratios observed near market close. View this paper
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Articles (25)

  • Article
  • Open Access
2 Citations
4,431 Views
30 Pages

Estimating the Acceptance Probabilities of Consumer Loan Offers in an Online Loan Comparison and Brokerage Platform

  • Renatas Špicas,
  • Airidas Neifaltas,
  • Rasa Kanapickienė,
  • Greta Keliuotytė-Staniulėnienė and
  • Deimantė Vasiliauskaitė

24 July 2023

It is widely recognised that the ability of e-commerce businesses to predict conversion probability, i.e., acceptance probability, is critically important in today’s business environment. While the issue of conversion prediction based on browsi...

  • Article
  • Open Access
22 Citations
8,463 Views
19 Pages

Earnings Management and Sustainability Reporting Disclosure: Some Insights from Indonesia

  • Sri Ningsih,
  • Khusnul Prasetyo,
  • Novi Puspitasari,
  • Suham Cahyono and
  • Khairul Anuar Kamarudin

24 July 2023

Earnings manipulation is often associated with deceiving public information that is displayed in sustainability reports. Therefore, the current study aims to explore the nexus between earnings management and sustainability reporting practices in the...

  • Article
  • Open Access
1 Citations
2,202 Views
15 Pages

21 July 2023

Descriptive statistics that are easy to generate and interpret are central to policy decision making. The GINI coefficient and the coefficient of variation are used widely when assessing inequality. In many areas of inequality, such as wealth and inc...

  • Article
  • Open Access
1 Citations
1,825 Views
21 Pages

21 July 2023

In the context of pension plans, the employer and the worker have distinct interests and face different risks. The worker seeks higher retirement benefits, while the employer aims to minimize the cost of fulfilling his obligations. To address these d...

  • Article
  • Open Access
1 Citations
3,148 Views
15 Pages

17 July 2023

This study aims to understand the impact of the additional remuneration of the Chief Executive Officer (CEO) over the mean remuneration of the board of directors on firms’ financial performance. The objective is to understand if the highest com...

  • Article
  • Open Access
14 Citations
3,926 Views
19 Pages

17 July 2023

This paper investigates the impact of financial inclusion on sustainable firm growth in Northern African countries (Egypt, Morocco, and Tunisia) during the period of 2007–2020. To this end, this study employs a dynamic panel threshold regressio...

  • Article
  • Open Access
1 Citations
4,338 Views
17 Pages

AutoReserve: A Web-Based Tool for Personal Auto Insurance Loss Reserving with Classical and Machine Learning Methods

  • Lu Xiong,
  • Vajira Manathunga,
  • Jiyao Luo,
  • Nicholas Dennison,
  • Ruicheng Zhang and
  • Zhenhai Xiang

14 July 2023

In this paper, we developed a Shiny-based application called AutoReserve. This application serves as a tool used for a variety of types of loss reserving. The primary target audience of the app is personal auto actuaries, who are professionals in the...

  • Article
  • Open Access
1,437 Views
18 Pages

13 July 2023

In univariate data, there exist standard procedures for identifying dominating features that produce the largest number of observations. However, in the multivariate setting, the situation is quite different. This paper aims to provide tools and meth...

  • Editorial
  • Open Access
2 Citations
2,589 Views
2 Pages

12 July 2023

“The Risk Landscape in the Digital Transformation of Finance and Insurance” is a Special Issue that explores the opportunities and challenges arising from the integration of emerging technologies in the finance and insurance sectors [...]

  • Article
  • Open Access
2 Citations
2,421 Views
31 Pages

12 July 2023

This study constructs an agent-based model suitable for analyzing the propagation of economic shocks based on a macroeconomic agent-based model structure that covers major economic entities. Instead of setting an upstream and downstream structure of...

  • Article
  • Open Access
2,757 Views
20 Pages

Dataset Analysis of the Risks for Russian IT Companies Amid the COVID-19 Crisis

  • Tatiana M. Vorozheykina,
  • Aleksei Yu. Shchetinin,
  • Galina N. Semenova and
  • Maria A. Vakhrushina

11 July 2023

The motivation for this research was to strive towards specifying the risks for businesses under the conditions of the COVID-19 pandemic and crisis in the IT sector in Russia. This paper is aimed at performing a dataset analysis of the risks for Russ...

  • Article
  • Open Access
1 Citations
1,833 Views
15 Pages

Cox-Based and Elliptical Telegraph Processes and Their Applications

  • Anatoliy Pogorui,
  • Anatoly Swishchuk,
  • Ramón M. Rodríguez-Dagnino and
  • Alexander Sarana

10 July 2023

This paper studies two new models for a telegraph process: Cox-based and elliptical telegraph processes. The paper deals with the stochastic motion of a particle on a straight line and on an ellipse with random positive velocity and two opposite dire...

  • Article
  • Open Access
4 Citations
2,704 Views
26 Pages

10 July 2023

Optimal reinsurance problems under the risk measures, such as Value-at-Risk (VaR) and Tail-Value-at-Risk (TVaR), have been studied in recent literature. However, losses based on VaR may be underestimated and TVaR allows us to account better for catas...

  • Article
  • Open Access
3 Citations
2,740 Views
14 Pages

10 July 2023

Evidence of the asymmetric wealth effect has important implications for investors and continues to merit research attention, not least because much of the evidence based on linear models has been refuted. Indeed, stock and house prices are influenced...

  • Communication
  • Open Access
8 Citations
5,464 Views
8 Pages

Credit Scoring for Peer-to-Peer Lending

  • Daniel Felix Ahelegbey and
  • Paolo Giudici

7 July 2023

This paper shows how to improve the measurement of credit scoring by means of factor clustering. The improved measurement applies, in particular, to small and medium enterprises (SMEs) involved in P2P lending. The approach explores the concept of fam...

  • Article
  • Open Access
7 Citations
8,143 Views
18 Pages

Cryptocurrency Trading and Downside Risk

  • Farhat Iqbal,
  • Mamoona Zahid and
  • Dimitrios Koutmos

6 July 2023

Since the debut of cryptocurrencies, particularly Bitcoin, in 2009, cryptocurrency trading has grown in popularity among investors. Relative to other conventional asset classes, cryptocurrencies exhibit high volatility and, consequently, downside ris...

  • Article
  • Open Access
7 Citations
3,163 Views
16 Pages

Predicting Stock Market Volatility Using MODWT with HyFIS and FS.HGD Models

  • Abdullah H. Alenezy,
  • Mohd Tahir Ismail,
  • Sadam Al Wadi and
  • Jamil J. Jaber

4 July 2023

We enhance the precision of predicting daily stock market price volatility using the maximum overlapping discrete wavelet transform (MODWT) spectral model and two learning approaches: the heuristic gradient descent (FS.HGD) and hybrid neural fuzzy in...

  • Article
  • Open Access
9 Citations
5,738 Views
18 Pages

The Silicon Valley Bank Failure: Application of Benford’s Law to Spot Abnormalities and Risks

  • Anurag Dutta,
  • Liton Chandra Voumik,
  • Lakshmanan Kumarasankaralingam,
  • Abidur Rahaman and
  • Grzegorz Zimon

3 July 2023

Data are produced every single instant in the modern era of technological breakthroughs we live in today and is correctly termed as the lifeblood of today’s world; whether it is Google or Meta, everyone depends on data to survive. But, with the...

  • Article
  • Open Access
2,725 Views
17 Pages

29 June 2023

This paper explores risk management strategies for investments in Nonfungible Token (NFT) coins through their diversification within the S&P 500 industry sectors. Given the significant decline in NFT coin values in 2022, understanding these strat...

  • Article
  • Open Access
1 Citations
2,077 Views
12 Pages

29 June 2023

Current theories of the discount rate have a theoretical basis focused on risk; risk-free rate and risk premium. The basic component of the discount rate, the risk-free rate as purely empirical has a natural infirmity which consequently weakens the f...

  • Article
  • Open Access
1 Citations
3,550 Views
20 Pages

26 June 2023

We present a multiscale analysis of the volatility of intraday prices from high-frequency data. Our multiscale framework includes a fractional Brownian motion and microstructure noise as the building blocks. The proposed noisy fractional Brownian mot...

  • Article
  • Open Access
13 Citations
6,524 Views
13 Pages

21 June 2023

Risk management in electricity markets is essential for decision making that involve uncertainty. This article researches the dominant themes and research trends in risk management in electricity markets using descriptive analysis, literature mapping...

  • Article
  • Open Access
3 Citations
3,193 Views
18 Pages

21 June 2023

The past decade has witnessed significant turmoil and political conflicts in several Middle Eastern countries, such as Egypt, Syria, and Libya, called the Arab Spring. These revolutions did not only affect the countries mentioned previously; their ne...

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Risks - ISSN 2227-9091