Stochastic Dominance and Omega Ratio: Measures to Examine Market Efficiency, Arbitrage Opportunity, and Anomaly
Both stochastic dominance and Omegaratio can be used to examine whether the market is efficient, whether there is any arbitrage opportunity in the market and whether there is any anomaly in the market. In this paper, we first study the relationship between stochastic dominance and the Omega ratio. W...
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MDPI AG
2017-10-01
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| Series: | Economies |
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| Online Access: | https://www.mdpi.com/2227-7099/5/4/38 |
| _version_ | 1798004043227856896 |
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| author | Xu Guo Xuejun Jiang Wing-Keung Wong |
| author_facet | Xu Guo Xuejun Jiang Wing-Keung Wong |
| author_sort | Xu Guo |
| collection | DOAJ |
| description | Both stochastic dominance and Omegaratio can be used to examine whether the market is efficient, whether there is any arbitrage opportunity in the market and whether there is any anomaly in the market. In this paper, we first study the relationship between stochastic dominance and the Omega ratio. We find that second-order stochastic dominance (SD) and/or second-order risk-seeking SD (RSD) alone for any two prospects is not sufficient to imply Omega ratio dominance insofar that the Omega ratio of one asset is always greater than that of the other one. We extend the theory of risk measures by proving that the preference of second-order SD implies the preference of the corresponding Omega ratios only when the return threshold is less than the mean of the higher return asset. On the other hand, the preference of the second-order RSD implies the preference of the corresponding Omega ratios only when the return threshold is larger than the mean of the smaller return asset. Nonetheless, first-order SD does imply Omega ratio dominance. Thereafter, we apply the theory developed in this paper to examine the relationship between property size and property investment in the Hong Kong real estate market. We conclude that the Hong Kong real estate market is not efficient and there are expected arbitrage opportunities and anomalies in the Hong Kong real estate market. Our findings are useful for investors and policy makers in real estate. |
| first_indexed | 2024-04-11T12:18:22Z |
| format | Article |
| id | doaj.art-90549cd9c17341d6a8f13b5f175c1de1 |
| institution | Directory Open Access Journal |
| issn | 2227-7099 |
| language | English |
| last_indexed | 2024-04-11T12:18:22Z |
| publishDate | 2017-10-01 |
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| series | Economies |
| spelling | doaj.art-90549cd9c17341d6a8f13b5f175c1de12022-12-22T04:24:12ZengMDPI AGEconomies2227-70992017-10-01543810.3390/economies5040038economies5040038Stochastic Dominance and Omega Ratio: Measures to Examine Market Efficiency, Arbitrage Opportunity, and AnomalyXu Guo0Xuejun Jiang1Wing-Keung Wong2School of Statistics, Beijing Normal University, Beijing 100875, ChinaDepartment of Mathematics, South University of Science and Technology of China, Shenzhen 518055, ChinaDepartment of Finance and Big Data Research Center, Asia University, Taichung 41354, TaiwanBoth stochastic dominance and Omegaratio can be used to examine whether the market is efficient, whether there is any arbitrage opportunity in the market and whether there is any anomaly in the market. In this paper, we first study the relationship between stochastic dominance and the Omega ratio. We find that second-order stochastic dominance (SD) and/or second-order risk-seeking SD (RSD) alone for any two prospects is not sufficient to imply Omega ratio dominance insofar that the Omega ratio of one asset is always greater than that of the other one. We extend the theory of risk measures by proving that the preference of second-order SD implies the preference of the corresponding Omega ratios only when the return threshold is less than the mean of the higher return asset. On the other hand, the preference of the second-order RSD implies the preference of the corresponding Omega ratios only when the return threshold is larger than the mean of the smaller return asset. Nonetheless, first-order SD does imply Omega ratio dominance. Thereafter, we apply the theory developed in this paper to examine the relationship between property size and property investment in the Hong Kong real estate market. We conclude that the Hong Kong real estate market is not efficient and there are expected arbitrage opportunities and anomalies in the Hong Kong real estate market. Our findings are useful for investors and policy makers in real estate.https://www.mdpi.com/2227-7099/5/4/38stochastic dominanceOmega ratiorisk avertersrisk seekersutility maximizationmarket efficiencyanomaly |
| spellingShingle | Xu Guo Xuejun Jiang Wing-Keung Wong Stochastic Dominance and Omega Ratio: Measures to Examine Market Efficiency, Arbitrage Opportunity, and Anomaly Economies stochastic dominance Omega ratio risk averters risk seekers utility maximization market efficiency anomaly |
| title | Stochastic Dominance and Omega Ratio: Measures to Examine Market Efficiency, Arbitrage Opportunity, and Anomaly |
| title_full | Stochastic Dominance and Omega Ratio: Measures to Examine Market Efficiency, Arbitrage Opportunity, and Anomaly |
| title_fullStr | Stochastic Dominance and Omega Ratio: Measures to Examine Market Efficiency, Arbitrage Opportunity, and Anomaly |
| title_full_unstemmed | Stochastic Dominance and Omega Ratio: Measures to Examine Market Efficiency, Arbitrage Opportunity, and Anomaly |
| title_short | Stochastic Dominance and Omega Ratio: Measures to Examine Market Efficiency, Arbitrage Opportunity, and Anomaly |
| title_sort | stochastic dominance and omega ratio measures to examine market efficiency arbitrage opportunity and anomaly |
| topic | stochastic dominance Omega ratio risk averters risk seekers utility maximization market efficiency anomaly |
| url | https://www.mdpi.com/2227-7099/5/4/38 |
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