From a regulatory point of view, as explained by Dimson and Marsh [1994, 1995], the amount of capital required by a financial institution to ensure an acceptably small probability…
Abstract
From a regulatory point of view, as explained by Dimson and Marsh [1994, 1995], the amount of capital required by a financial institution to ensure an acceptably small probability of failure should depend on the risk associated with the assets detained in its portfolio. Dimson and Marsh [1994] conduct an empirical study on long and short equity trading books of securities firms acting as market makers. They consider different existing regulations: the comprehensive approach, as applied in the United States by the Securities and Exchange Commission; the building‐block approach, as proposed by the Basle Committee on Banking Supervision, and incorporated in the European Community [1992] Capital Adequacy Directive (CAD); and the portfolio approach, which in the U.K. forms part of the rules of the Securities and Futures Authority [1992]. All three methods are compared via the position risk requirement (PRR) that determines the amount of capital that financial institutions have to put aside. As shown by the authors in their empirical study, the methods proposed by the international regulators are barely related to the risk of the portfolios! Only for the national U.K. rules, the PRR and the risk of a portfolio show positive correlation.
ROBERTO CURCI, TERRANCE GRIEB and MARIO G. REYES
This study uses a two‐step GARCH‐M procedure to observe mean‐return and volatility transmissions between Latin American markets and to Latin America from external markets during…
Abstract
This study uses a two‐step GARCH‐M procedure to observe mean‐return and volatility transmissions between Latin American markets and to Latin America from external markets during the period 1993–2000. The results indicate that mean‐return transmissions are common both within region and from external markets. The volatility transmission results are consistent with contagion theory and indicate that traders use both domestic news events as well as information contained by volatility in other markets in their information set.
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The purpose of the paper is to study the relationship between stock return correlation and volatility.
Abstract
Purpose
The purpose of the paper is to study the relationship between stock return correlation and volatility.
Design/methodology/approach
Utilizing a logit‐type regression model, the paper analyzes the incremental effect of volatility on the level of correlation. The focus of the paper is set on the impact of the volatilities involved in the definition and calculation of the correlation as well as on the effects of external volatilities from other markets.
Findings
In the paper, an explicit model was constructed to investigate the contribution of the level of volatility on mutual correlations of the markets. The empirical results strongly support the findings that high volatility tends to increase correlations between the markets (see for example). An analysis of the small Nordic markets further showed that the local volatilities may play a role in the change of the level of correlation. However, it is the general world‐wide volatility level that mainly drives the changes in the correlations.
Originality/value
Particularly, the results of the paper show that market correlations tend to be dependent on the general world‐wide volatility rather than on local volatilities of single markets. This approach gives us important information about the behavior of the correlation with respect to the level of each market's risk as well as to the general global market‐risk level. The results can be directly utilized by portfolio managers in planning portfolio diversification strategies in accordance with the expected future volatility.
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Mário Franco, Mayara Nagilla and Margarida Rodrigues
This study aims to analyze how the presence of women is seen in family small and medium-sized enterprises’ (SMEs) succession process from the successors' perspective.
Abstract
Purpose
This study aims to analyze how the presence of women is seen in family small and medium-sized enterprises’ (SMEs) succession process from the successors' perspective.
Design/methodology/approach
To do so, the multiple case study method (qualitative approach) was used: five Brazilian SMEs and three Portuguese SMEs, and the data-collecting techniques were the online interview and documentary analysis. Data analysis was through content analysis using NVivo software.
Findings
The empirical evidence obtained led to the conclusion that the natural succession process is predominant in the family SMEs studied here. Although succession planning is present in some firms, these plans are informal and not rigid as regards deadlines. Nor do they present stages and tasks that could be considered as a planned succession.
Practical implications
The study shows that successors do not see gender as a relevant criterion for the choice of successor. It is concluded that women's participation in family SME succession, even to a lesser extent, is still marked by gender inequality. So, this study provides directions to policymakers and researchers to focus on developmental programmes for the presence of women in family SMEs' succession process.
Originality/value
Although some successors consider that these firms' performance may be different due to gender characteristics, others emphasize that management is the same. Therefore, this study provides the futuristic direction to policymakers, researchers and educators for focusing on the enhancement of women entrepreneurs which plays a crucial role in the family SMEs' succession process. Therefore, a conceptual framework is proposed that explains the articulation of different categories to understand the gender perspective in family firms' succession.
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Deepak Jadhav and T.V. Ramanathan
An investor is expected to analyze the market risk while investing in equity stocks. This is because the investor has to choose a portfolio which maximizes the return with a…
Abstract
Purpose
An investor is expected to analyze the market risk while investing in equity stocks. This is because the investor has to choose a portfolio which maximizes the return with a minimum risk. The mean-variance approach by Markowitz (1952) is a dominant method of portfolio optimization, which uses variance as a risk measure. The purpose of this paper is to replace this risk measure with modified expected shortfall, defined by Jadhav et al. (2013).
Design/methodology/approach
Modified expected shortfall introduced by Jadhav et al. (2013) is found to be a coherent risk measure under univariate and multivariate elliptical distributions. This paper presents an approach of portfolio optimization based on mean-modified expected shortfall for the elliptical family of distributions.
Findings
It is proved that the modified expected shortfall of a portfolio can be represented in the form of expected return and standard deviation of the portfolio return and modified expected shortfall of standard elliptical distribution. The authors also establish that the optimum portfolio through mean-modified expected shortfall approach exists and is located within the efficient frontier of the mean-variance portfolio. The results have been empirically illustrated using returns from stocks listed in National Stock Exchange of India, Shanghai Stock Exchange of China, London Stock Exchange of the UK and New York Stock Exchange of the USA for the period February 2005-June 2018. The results are found to be consistent across all the four stock markets.
Originality/value
The mean-modified expected shortfall portfolio approach presented in this paper is new and is a natural extension of the Markowitz’s mean-variance and mean-expected shortfall portfolio optimization discussed by Deng et al. (2009).
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The author suggests an empirical model to analyze the investment style of individual hedge funds and fund of funds. This approach is based on a mixture of the style analysis…
Abstract
The author suggests an empirical model to analyze the investment style of individual hedge funds and fund of funds. This approach is based on a mixture of the style analysis approach suggested by Sharpe [1988], the factor push approach used in stress testing, and historical simulation. The parameter estimates from this model are inputs in the Value‐at‐Risk analysis for a sample of 2,934 funds over the 1994–2000 period. The in‐sample and out‐of‐sample results suggest that the proposed approach is useful and may constitute a valuable tool for assessing the investment style and risk of hedge funds.
We examine the mode of international expansion as an equilibrium governance contract between home country and host country factor owner. The focus is on agency costs, a form of…
Abstract
We examine the mode of international expansion as an equilibrium governance contract between home country and host country factor owner. The focus is on agency costs, a form of transactions costs. Two phenomena are shown to be related to the agency costs imposed by factor owners: (i) the choice of different modes of international expansion by one firm in different locations, and (ii) the simultaneous occurrence of several forms of foreign involvement in the same location. We attempt to characterize the dynamic relationship between the mode of an offshore operation and changes in factor market conditions that affect agency costs.