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Risks, Volume 11, Issue 10

2023 October - 18 articles

Cover Story: Leopold Gegenbauer was a 19th century mathematician who developed Gegenbauer polynomials. A Gegenbauer model when combined with a short-memory ARMA model is known as a GARMA model. Gegenbauer Auto-Regressive Moving-Average Models (GARMA) are a form of long-memory models and fractal models. They can capture processes that have a high correlation between observations that are far apart in time. GARMA models can also capture short-term cycles. These models can be applied to a variety of time series displaying long memory including sunspots, the flooding of the Nile, (see Hurst as in the Hurst exponent (1951)), inflation rates, exchange rates and realized volatility (RV), the topic of this application. View this paper
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Articles (18)

  • Article
  • Open Access
1 Citations
3,093 Views
13 Pages

Risk Structure of Banks in Spain: Do BHCs Have Greater Cost of Debt?

  • Natalia Boliari,
  • Kudret Topyan and
  • Chia-Jane Wang

23 October 2023

Holding companies legally separate the assets and owners of a company creating a layer of liability protection. Theoretically, this feature lowers the risk attributable to holding companies, enabling them to offer lower-cost debts compared to stand-a...

  • Feature Paper
  • Article
  • Open Access
5,131 Views
25 Pages

20 October 2023

This work aims to develop a measure of how much credit risk is priced into equity options. Such a measure appears particularly appealing when applied to a portfolio of equity options, as it allows for the factoring in of firm-specific default dynamic...

(This article belongs to the Special Issue Risks Journal: A Decade of Advancing Knowledge and Shaping the Future)
  • Article
  • Open Access
30 Citations
17,231 Views
18 Pages

19 October 2023

The importance of Environmental, Social, and Governance (ESG) aspects in investment decisions has grown significantly in today’s volatile financial market. This study aims to answer the important question of whether investing in ESG-compliant c...

  • Article
  • Open Access
2 Citations
4,203 Views
20 Pages

19 October 2023

The purpose of this study was to examine the determinants of cash distribution options by critically considering the effects of earnings, dividends, firm size, and economic value added. The distribution of cash dividends to shareholders serves as a b...

  • Article
  • Open Access
15 Citations
4,682 Views
15 Pages

18 October 2023

Participation and inclusion in the business ecosystem have emerged as a growing trend for company collaboration in areas such as innovation, product development, and research. Collaborations can take many forms, ranging from the traditional value cha...

  • Feature Paper
  • Article
  • Open Access
3 Citations
3,225 Views
15 Pages

16 October 2023

This paper features an analysis of the relative effectiveness, in terms of the Adjusted R-Square, of a variety of methods of modelling realized volatility (RV), namely the use of Gegenbauer processes in Auto-Regressive Moving Average format, GARMA, a...

  • Article
  • Open Access
6 Citations
3,467 Views
12 Pages

Taguchi Risk and Process Capability

  • Alexandru Isaic-Maniu,
  • Irina-Maria Dragan,
  • Ana-Maria Grigore and
  • Florentina Constantin

13 October 2023

Process control methods, in general, and quality, in particular, most often refer to the measures taken especially to the finished product, as well as to the technological process, in order to maintain its performance within certain statistical param...

  • Article
  • Open Access
4 Citations
9,930 Views
19 Pages

Mapping Risks Faced by Startup Investors: An Approach Based on the Apriori Algorithm

  • Claudio Roberto Silva Júnior,
  • Julio Cezar Mairesse Siluk,
  • Alvaro Luis Neuenfeldt-Júnior,
  • Matheus Binotto Francescatto and
  • Cláudia de Freitas Michelin

13 October 2023

This article maps and verifies the dependence relation between risks faced by startup investors. Thus, a systematic review of 33 articles and a meta-analysis using the Apriori algorithm were used. We mapped 14 investment risks faced by startup invest...

  • Article
  • Open Access
24 Citations
10,393 Views
17 Pages

10 October 2023

This article presents a comparative analysis of machine learning models for business failure prediction. Bankruptcy prediction is crucial in assessing financial risks and making informed decisions for investors and regulatory bodies. Since machine le...

  • Feature Paper
  • Article
  • Open Access
1 Citations
2,519 Views
32 Pages

7 October 2023

In a recent paper “Stochastic Chain-Ladder Reserving with Modeled General Inflation”, the effects of modeled general inflation on non-life claims reserving were studied using, along with the so called “market approach”, a stoc...

(This article belongs to the Special Issue Advancements in Actuarial Mathematics and Insurance Risk Management)
  • Feature Paper
  • Article
  • Open Access
4 Citations
4,286 Views
26 Pages

30 September 2023

The aim of this work is to introduce an innovative methodology for performing risk attribution within a multifactor risk framework. We applied this analysis to the assessment of systemic, climate, and geopolitical risks relative to a representative s...

  • Article
  • Open Access
16 Citations
7,707 Views
31 Pages

30 September 2023

In the evolving economic landscape, Industry 4.0 emphasizes strategic planning and operational progress for large enterprises. This transformation relies on smart robotization technologies like AGVs (Automated Guided Vehicles) and AMRs (Autonomous Mo...

  • Article
  • Open Access
3,015 Views
39 Pages

28 September 2023

Unemployment insurance provides temporary cash benefits to eligible unemployed workers. Benefits are sometimes extended by discretion during economic slumps. In a model that features temporary benefits and sequential job opportunities, a worker’s res...

  • Article
  • Open Access
2 Citations
3,267 Views
21 Pages

28 September 2023

Stochastic mortality models seek to forecast future mortality rates; thus, it is apparent that the objective variable should be the mortality rate expressed in the original scale. However, the performance of stochastic mortality models—in terms...

  • Feature Paper
  • Article
  • Open Access
3,282 Views
22 Pages

An Exponentiality Test of Fit Based on a Tail Characterization against Heavy and Light-Tailed Alternatives

  • Alex Karagrigoriou,
  • Ioannis Mavrogiannis,
  • Georgia Papasotiriou and
  • Ilia Vonta

28 September 2023

Log-concavity and log-convexity play a key role in various scientific fields, especially in those where the distinction between exponential and non-exponential distributions is necessary for inferential purposes. In the present study, we introduce a...

  • Article
  • Open Access
1 Citations
3,435 Views
41 Pages

26 September 2023

We present a semi-static replication algorithm for Bermudan swaptions under an affine, multi-factor term structure model. In contrast to dynamic replication, which needs to be continuously updated as the market moves, a semi-static replication needs...

(This article belongs to the Special Issue Emerging Topics in Finance and Risk Engineering—In Memory of Peter Carr)
  • Article
  • Open Access
1 Citations
3,089 Views
18 Pages

Cyber Insurance Premium Setting for Multi-Site Companies under Risk Correlation

  • Loretta Mastroeni,
  • Alessandro Mazzoccoli and
  • Maurizio Naldi

22 September 2023

Correlation in cyber risk represents an additional source of concern for utility and industrial infrastructures, where risks may be introduced by connected systems. A major means of reducing risk is to transfer it through insurance. In this paper, we...

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Risks - ISSN 2227-9091