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Efficiency of well-diversified portfolios: Evidence from data envelopment analysis

Title
Efficiency of well-diversified portfolios: Evidence from data envelopment analysis
Authors
Choi H.-S.Min D.
Ewha Authors
민대기최형석
SCOPUS Author ID
민대기scopus; 최형석scopus
Issue Date
2017
Journal Title
Omega (United Kingdom)
ISSN
0305-0483JCR Link
Citation
vol. 73, pp. 104 - 113
Keywords
DEADiversificationEfficiencyETFPerformance measure
Publisher
Elsevier Ltd
Indexed
SCIE; SSCI; SCOPUS WOS scopus
Abstract
In this work, we evaluate eight exchange traded funds (ETFs) and their benchmark index (the KOSPI 200 Index), based on the Sharpe ratio and the Treynor ratio and find that the performance of these well-diversified portfolios are quite poor relative to individual stocks. Investors׳ preference to avoid the well-diversified portfolios would be related to this poor performance. However, we empirically show that ETFs and the KOSPI 200 Index are the most efficient investment instruments with respect to the new performance measure designed on the basis of the data envelopment analysis (DEA) methodology. Examining the panel data over the period between 2003 and 2014 indicates that well-diversified portfolios improve the efficiency by adjusting the input variables (σ and β). Furthermore, they do so more effectively as they mature. © 2017 Elsevier Ltd
DOI
10.1016/j.omega.2016.12.008
Appears in Collections:
경영대학 > 경영학전공 > Journal papers
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