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Assessing financial stability in turbulent times : a study of generalized autoregressive conditional heteroskedasticity-type Value-at-Risk model performance in Thailand's transport...

Danai Likitratcharoen; Lucksuda Suwannamalik - In: Risks : open access journal 12 (2024) 3, pp. 1-19

of VaR approaches. This study critically evaluates the efficacy of GARCH-type VaR models within the transportation sector … GARCH-type VaR models include GARCH (1,1) VaR, ARMA (1,1)-GARCH (1,1) VaR, GARCH (1,1)-M VaR, IGARCH (1,1) VaR, EWMA VaR … surpasses GARCH-type VaR models in failure rate accuracy. Within the GARCH-type category, the EWMA VaR model exhibited superior …

Persistent link: https://www.econbiz.de/10014497424

On exactitude in financial regulation : value-at-risk, expected shortfall, and expectiles

Chen, Jim - In: Risks : open access journal 6 (2018) 2, pp. 1-28

This article reviews two leading measures of financial risk and an emerging alternative. Embraced by the Basel accords, value-at-risk and expected shortfall are the leading measures of financial risk. Expectiles offset the weaknesses of value-at-risk (VaR) and expected shortfall. Indeed,...

Persistent link: https://www.econbiz.de/10011867427

Measuring risk when expected losses are unbounded

Balbás de la Corte, Alejandro; Blanco, Iván; Garrido, … - In: Risks : open access journal 2 (2014) 4, pp. 411-424

This paper proposes a new method to introduce coherent risk measures for risks with infinite expectation, such as those characterized by some Pareto distributions. Extensions of the conditional value at risk, the weighted conditional value at risk and other examples are given. Actuarial...

Persistent link: https://www.econbiz.de/10010489103

The accuracy of risk measurement models on bitcoin market during COVID-19 pandemic

Likitratchoaroen, Danai; Kronprasert, Nopadon; … - In: Risks : open access journal 9 (2021) 12, pp. 1-16

Since late 2019, during one of the largest pandemics in history, COVID-19, global economic recession has continued. Therefore, investors seek an alternative investment that generates profits during this financially risky situation. Cryptocurrency, such as Bitcoin, has become a new currency tool...

Persistent link: https://www.econbiz.de/10012794186

Grouped normal variance mixtures

Hintz, Erik; Hofert, Marius; Lemieux, Christiane - In: Risks : open access journal 8 (2020) 4/103, pp. 1-26

Grouped normal variance mixtures are a class of multivariate distributions that generalize classical normal variance mixtures such as the multivariate t distribution, by allowing different groups to have different (comonotone) mixing distributions. This allows one to better model risk factors...

Persistent link: https://www.econbiz.de/10012373086

Corporate governance and cost of capital : evidence from emerging market

Khan, Muhammad Yar; Javeed, Anam; Cuong, Ly Kim; Pham Ha - In: Risks : open access journal 8 (2020) 4/104, pp. 1-29

This study used a researcher self-constructed corporate governance index as a proxy to measure the firm-level corporate governance compliance and disclosure with the 2002 Pakistani Code of Corporate Governance, to examine the relationship between corporate governance and cost of capital. We...

Persistent link: https://www.econbiz.de/10012373093

Market-risk optimization among the developed and emerging markets with cvar measure and copula simulation

Trabelsi, Nader; Tiwari, Aviral Kumar - In: Risks : open access journal 7 (2019) 3/78, pp. 1-20

In this paper, the generalized Pareto distribution (GPD) copula approach is utilized to solve the conditional value-at-risk (CVaR) portfolio problem. Particularly, this approach used (i) copula to model the complete linear and non-linear correlation dependence structure, (ii) Pareto tails to...

Persistent link: https://www.econbiz.de/10012127555

Tail dependence in financial markets : a dynamic copula approach

Cortese, Federico Pasquale - In: Risks : open access journal 7 (2019) 4/116, pp. 1-14

This article is concerned with the study of the tail correlation among equity indices by means of dynamic copula functions. The main idea is to consider the impact of the use of copula functions in the accuracy of the model´s parameters and in the computation of Value-at-Risk (VaR). Results...

Persistent link: https://www.econbiz.de/10012127765

The cascade Bayesian approach : prior transformation for a controlled integration of internal data, external data and scenarios

Hassani, Bertrand; Renaudin, Alexis - In: Risks : open access journal 6 (2018) 2, pp. 1-17

According to the last proposals of the Basel Committee on Banking Supervision, banks or insurance companies under the advanced measurement approach (AMA) must use four different sources of information to assess their operational risk capital requirement. The fourth includes ’business...

Persistent link: https://www.econbiz.de/10011866503

On fund mapping regressions applied to segregated funds hedging under regime-switching dynamics

Trottier, Denis-Alexandre; Godin, Frédéric; Hamel, … - In: Risks : open access journal 6 (2018) 3, pp. 1-15

Insurers issuing segregated fund policies apply dynamic hedging to mitigate risks related to guarantees embedded in such policies. A typical industry practice consists of using fund mapping regressions to represent basis risk stemming from the imperfect correlation between the underlying fund...

Persistent link: https://www.econbiz.de/10011890772