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Risks, Volume 13, Issue 4

April 2025 - 19 articles

Cover Story: Contractual changes (e.g., lapse and paid-up) of policyholders affect the future cash flow profile of life insurers and, therefore, must be assessed by risk management carefully. Established statistical models estimate transition rates for each contractual option separately and manually. Thus, this time-consuming task is subjective and vulnerable to overfitting. A novel application based on the (multinomial) Lasso can replace this with an automated, data-driven approach that remains fully interpretable. Different variants are compared qualitatively and quantitatively by evaluating a real-world data set from a European insurer. View this paper
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Articles (19)

  • Article
  • Open Access
2,656 Views
24 Pages

1 April 2025

Certain fixed-income securities, such as callable bonds and mortgage-backed securities subject to prepayment, typically exhibit negative convexity at low yields and cannot be adequately immunized through duration and convexity-matching alone. To addr...

  • Article
  • Open Access
2 Citations
2,558 Views
21 Pages

1 April 2025

Although the relationship between ESG performance and firm performance has been the subject of several studies, the nonlinear relationship between ESG performance and the corporate performance of insurance companies remains less explored, specificall...

  • Article
  • Open Access
1 Citations
5,692 Views
24 Pages

1 April 2025

In the context of increasingly severe global climate change, both companies and investors are placing greater emphasis on investment philosophies centered around environmental protection, social responsibility, and corporate governance (ESG). This pa...

  • Article
  • Open Access
2 Citations
710 Views
25 Pages

27 March 2025

This paper is concerned with the choice of data granularity for application of the EDF (Exponential Dispersion Family) chain ladder model to forecast a loss reserve. As the duration of individual accident and development periods is decreased, the num...

  • Article
  • Open Access
1,741 Views
41 Pages

27 March 2025

Financial industry executives are sincerely concerned about the potential effects of greenwashing on their organizations. The primary objective of this research is to investigate the impact of board features on greenwashing and the strategies that ex...

  • Article
  • Open Access
6,764 Views
18 Pages

26 March 2025

This research indicates that accounting is essential for assessing South Asian airline companies via financial ratio analysis from 2011 to 2022. The accounting measurements delineate informing and facilitating strategic decision-making from 2011 to 2...

  • Systematic Review
  • Open Access
3 Citations
16,498 Views
28 Pages

23 March 2025

This systematic review analyzes and compares the predictive power between traditional financial ratios and cash flow-based ratios in estimating performance. Although traditional ratios of return on assets and debt to equity have received extensive ap...

  • Feature Paper
  • Article
  • Open Access
1,050 Views
27 Pages

An Optional Semimartingales Approach to Risk Theory

  • Mahdieh Aminian Shahrokhabadi,
  • Alexander Melnikov and
  • Andrey Pak

21 March 2025

This paper aims to develop optional semimartingale methods in risk theory to allow for a larger class of risk models. Optional semimartingales are left-continuous with right-limit stochastic processes defined on a probability space where the usual co...

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Risks - ISSN 2227-9091