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Diversification and desynchronicity : an organizational portfolio perspective on corporate risk reduction

Shao, Xue-Feng; Guliamos, Kōstas Iō.; Luo, Ben Nan-Feng; … - In: Risks : open access journal 8 (2020) 2/51, pp. 1-16

reduction is diversification; however, evidence for the effectiveness of diversification remains inconclusive. According to … diversification and synchronization compensation. This study introduces “desynchronicity”, a process that operationalizes … 332 firms (from COMPUSTAT) were used to empirically test the relationships between diversification and risk, and …

Persistent link: https://www.econbiz.de/10012292861

Portfolio optimization for extreme risks with maximum diversification : an empirical analysis

Mehta, Navya Jayesh; Yang, Fan - In: Risks : open access journal 10 (2022) 5, pp. 1-26

huge losses for financial institutions. Diversification ratio (DR) measures the degree of diversification using the Value … effect of diversification for extreme risks. In this paper, we empirically examine the DR strategy by using more than 350 S … comparison includes annualized portfolio return, modified Sharpe ratio, maximum drawdown, portfolio concentration, portfolio …

Persistent link: https://www.econbiz.de/10013358817

The impact of systemic risk on the diversification benefits of a risk portfolio

Busse, Marc; Dacorogna, Michel M.; Katz, Marie - In: Risks : open access journal 2 (2014) 3, pp. 260-276

Risk diversification is the basis of insurance and investment. It is thus crucial to study the effects that could limit … occurrence, systemic risk can reduce dramatically the diversification benefits. It is clearly revealed via a non …

Persistent link: https://www.econbiz.de/10010399713

Actuarial geometry

Mildenhall, Stephen J. - In: Risks : open access journal 5 (2017) 2, pp. 1-44

The literature on capital allocation is biased towards an asset modeling framework rather than an actuarial framework. The asset modeling framework leads to the proliferation of inappropriate assumptions about the effect of insurance line of business growth on aggregate loss distributions. This...

Persistent link: https://www.econbiz.de/10011687307

The effects of direct democracy on stock market risk and returns : an event study from Switzerland

Morley, Bruce - In: Risks : open access journal 11 (2023) 2, pp. 1-13

The aim of this study was to determine whether referendums affect stock price risks and returns, using an event study approach. Daily end period data for the Swiss stock market index, the STOXX European market index, and the Swiss/US exchange rate running from the beginning of 2004 to June 2021,...

Persistent link: https://www.econbiz.de/10014233147

Dealing with drift uncertainty : a Bayesian learning approach

De Franco, Carmine; Nicolle, Johann; Pham, Huyên - In: Risks : open access journal 7 (2019) 1/5, pp. 1-18

One of the main challenges investors have to face is model uncertainty. Typically, the dynamic of the assets is modeled using two parameters: the drift vector and the covariance matrix, which are both uncertain. Since the variance/covariance parameter is assumed to be estimated with a certain...

Persistent link: https://www.econbiz.de/10012018698

Custom v. standardized risk models

Kakushadze, Zura; Liew, Jim Kyung-Soo - In: Risks : open access journal 3 (2015) 2, pp. 112-138

We discuss when and why custom multi-factor risk models are warranted and give source code for computing some risk factors. Pension/mutual funds do not require customization but standardization. However, using standardized risk models in quant trading with much shorter holding horizons is...

Persistent link: https://www.econbiz.de/10011299524

Best-estimates in bond markets with reinvestment risk

MacKay, Anne; Wüthrich, Mario V. - In: Risks : open access journal 3 (2015) 3, pp. 250-276

The concept of best-estimate, prescribed by regulators to value insurance liabilities for accounting and solvency purposes, has recently been discussed extensively in the industry and related academic literature. To differentiate hedgeable and non-hedgeable risks in a general case, recent...

Persistent link: https://www.econbiz.de/10011300314

Surrounding risks

Steffensen, Mogens - In: Risks : open access journal 1 (2013) 1, pp. 43-44

, valuation, and controlling of risks. One of the main sources of control is diversification of risks and in that respect it …

Persistent link: https://www.econbiz.de/10009754658

Evaluating risk measures and capital allocations based on multi-losses driven by a heavy-tailed background risk : the multivariate Pareto-II model

Asimit, Alexandru V.; Vernic, Raluca; Zitikis, Riċardas - In: Risks : open access journal 1 (2013) 1, pp. 14-33

Evaluating risk measures, premiums, and capital allocation based on dependent multi-losses is a notoriously difficult task. In this paper, we demonstrate how this can be successfully accomplished when losses follow the multivariate Pareto distribution of the second kind, which is an attractive...

Persistent link: https://www.econbiz.de/10009754682