Multivariate Stochastic Dominance for Risk Averters and Risk Seekers
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- Cox, James C., 1973. "A theorem on additively-separable, quasi-concave functions," Journal of Economic Theory, Elsevier, vol. 6(2), pages 210-212, April.
- Victor DeMiguel & Lorenzo Garlappi & Raman Uppal, 2009. "Optimal Versus Naive Diversification: How Inefficient is the 1-N Portfolio Strategy?," The Review of Financial Studies, Society for Financial Studies, vol. 22(5), pages 1915-1953, May.
- Efe A. Ok & Laurence Kranich, 1998.
"The measurement of opportunity inequality: a cardinality-based approach,"
Social Choice and Welfare, Springer;The Society for Social Choice and Welfare, vol. 15(2), pages 263-287.
- Ok, Efe A. & Kranich, Laurence, 1995. "The measurement of opportunity inequality: a cardinality-based approach," UC3M Working papers. Economics 3920, Universidad Carlos III de Madrid. Departamento de EconomÃa.
- Zhuo Qiao & Ephraim Clark & Wing-Keung Wong, 2014. "Investors’ preference towards risk: evidence from the Taiwan stock and stock index futures markets," Accounting and Finance, Accounting and Finance Association of Australia and New Zealand, vol. 54(1), pages 251-274, March.
- Michel Denuit & Louis Eeckhoudt & Béatrice Rey, 2010.
"Some consequences of correlation aversion in decision science,"
Annals of Operations Research, Springer, vol. 176(1), pages 259-269, April.
- M. Denuit & L. Eeckhoudt & Béatrice Rey, 2010. "Some consequences of correlation aversion in decision science," Post-Print halshs-00485722, HAL.
- DENUIT, Michel & EECKHOUDT, Louis & REY, Béatrice, 2010. "Some consequences of correlation aversion in decision science," LIDAM Reprints CORE 2207, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
- Hadar, Josef & Russell, William R., 1971. "Stochastic dominance and diversification," Journal of Economic Theory, Elsevier, vol. 3(3), pages 288-305, September.
- Harry Markowitz, 1952. "The Utility of Wealth," Journal of Political Economy, University of Chicago Press, vol. 60(2), pages 151-151.
- Jean, William H, 1980. "The Geometric Mean and Stochastic Dominance," Journal of Finance, American Finance Association, vol. 35(1), pages 151-158, March.
- L. Eeckhoudt & M. Denuit, 2010. "Bivariate stochastic dominance and substitute risk (in) dependent utility," Post-Print hal-00572956, HAL.
- Russell Davidson & Jean-Yves Duclos, 2000.
"Statistical Inference for Stochastic Dominance and for the Measurement of Poverty and Inequality,"
Econometrica, Econometric Society, vol. 68(6), pages 1435-1464, November.
- Davidson, R. & Duclos, J.-Y., 1998. "Statistical Inference for Stochastic Dominance and for the Measurement of Poverty and Inequality," G.R.E.Q.A.M. 98a14, Universite Aix-Marseille III.
- Russell Davidson & Jean-Yves Duclos, 1998. "Statistical Inference for Stochastic Dominance and for the Measurement of Poverty and Inequality," LIS Working papers 181, LIS Cross-National Data Center in Luxembourg.
- Davidson, Russell & Duclos, Jean-Yves, 1998. "Statistical Inference for Stochastic Dominance and for the Measurement of Poverty and Inequality," Cahiers de recherche 9805, Université Laval - Département d'économique.
- Zhidong Bai & Hua Li & Michael McAleer & Wing-Keung Wong, 2015.
"Stochastic dominance statistics for risk averters and risk seekers: an analysis of stock preferences for USA and China,"
Quantitative Finance, Taylor & Francis Journals, vol. 15(5), pages 889-900, May.
- Zhidong Bai & Hua Li & Michael McAleer & Wing-Keung Wong, 2012. "Stochastic Dominance Statistics for Risk Averters and Risk Seekers: An Analysis of Stock Preferences for USA and China," Documentos de Trabajo del ICAE 2012-13, Universidad Complutense de Madrid, Facultad de Ciencias Económicas y Empresariales, Instituto Complutense de Análisis Económico.
- Zhidong Bai & Hua Li & Michael McAleer & Wing-Keung Wong, 2012. "Stochastic Dominance Statistics for Risk Averters and Risk Seekers: An Analysis of Stock Preferences for USA and China," KIER Working Papers 820, Kyoto University, Institute of Economic Research.
- Darinka Dentcheva & Andrzej Ruszczynski, 2004. "Optimization Under First Order Stochastic Dominance Constraints," GE, Growth, Math methods 0403002, University Library of Munich, Germany, revised 07 Aug 2005.
- Harry Markowitz, 1952. "Portfolio Selection," Journal of Finance, American Finance Association, vol. 7(1), pages 77-91, March.
- Haim Levy, 1992. "Stochastic Dominance and Expected Utility: Survey and Analysis," Management Science, INFORMS, vol. 38(4), pages 555-593, April.
- Egozcue, Martin & Wong, Wing-Keung, 2010. "Gains from diversification on convex combinations: A majorization and stochastic dominance approach," European Journal of Operational Research, Elsevier, vol. 200(3), pages 893-900, February.
- Wong, Wing-Keung, 2007.
"Stochastic dominance and mean-variance measures of profit and loss for business planning and investment,"
European Journal of Operational Research, Elsevier, vol. 182(2), pages 829-843, October.
- Wing-Keung Wong, 2007. "Stochastic Dominance and Mean-Variance Measures of Profit and Loss for Business Planning and Investment," Finance Working Papers 21922, East Asian Bureau of Economic Research.
- Robert Eisner & Robert H. Strotz, 1961. "Flight Insurance and the Theory of Choice," Journal of Political Economy, University of Chicago Press, vol. 69(4), pages 355-355.
- Samuelson, Paul A., 1967. "General Proof that Diversification Pays*," Journal of Financial and Quantitative Analysis, Cambridge University Press, vol. 2(1), pages 1-13, March.
- Wing-Keung Wong & Chenghu Ma, 2008. "Preferences over location-scale family," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 37(1), pages 119-146, October.
- Jegadeesh, Narasimhan & Titman, Sheridan, 1993. "Returns to Buying Winners and Selling Losers: Implications for Stock Market Efficiency," Journal of Finance, American Finance Association, vol. 48(1), pages 65-91, March.
- Wong, Wing-Keung & Li, Chi-Kwong, 1999. "A note on convex stochastic dominance," Economics Letters, Elsevier, vol. 62(3), pages 293-300, March.
- Gordon B. Hazen, 1986. "Partial Information, Dominance, and Potential Optimality in Multiattribute Utility Theory," Operations Research, INFORMS, vol. 34(2), pages 296-310, April.
- James P. Quirk & Rubin Saposnik, 1962. "Admissibility and Measurable Utility Functions," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 29(2), pages 140-146.
- John S. Hammond, III, 1974. "Simplifying the Choice between Uncertain Prospects Where Preference is Nonlinear," Management Science, INFORMS, vol. 20(7), pages 1047-1072, March.
- Hoang, Thi-Hong-Van & Wong, Wing-Keung & Zhu, Zhenzhen, 2015.
"Is gold different for risk-averse and risk-seeking investors? An empirical analysis of the Shanghai Gold Exchange,"
Economic Modelling, Elsevier, vol. 50(C), pages 200-211.
- Thi-Hong-Van Hoang & Wing-Keung Wong & Zhenzhen Zhu, 2015. "Is gold different for risk-averse and risk-seeking investors? An empirical analysis of the Shanghai Gold Exchange," Post-Print hal-02010732, HAL.
- Fong, Wai Mun & Wong, Wing Keung & Lean, Hooi Hooi, 2005. "International momentum strategies: a stochastic dominance approach," Journal of Financial Markets, Elsevier, vol. 8(1), pages 89-109, February.
- Eeckhoudt, Louis & Denuit, Michel & Rey, Beatrice, 2010. "Some consequences of correlation aversion in decision science," LIDAM Reprints ISBA 2010027, Université catholique de Louvain, Institute of Statistics, Biostatistics and Actuarial Sciences (ISBA).
- Eeckhoudt, Louis & Denuit, Michel & Rey, Beatrice, 2010. "Some consequences of correlation aversion in decision science," LIDAM Reprints ISBA 2010010, Université catholique de Louvain, Institute of Statistics, Biostatistics and Actuarial Sciences (ISBA).
- Levy, Haim, 1973. "Stochastic Dominance, Efficiency Criteria, and Efficient Portfolios: The Multi-Period Case," American Economic Review, American Economic Association, vol. 63(5), pages 986-994, December.
- Wong, Wing-Keung, 2007.
"Stochastic dominance and mean-variance measures of profit and loss for business planning and investment,"
European Journal of Operational Research, Elsevier, vol. 182(2), pages 829-843, October.
- Wing-Keung Wong, 2007. "Stochastic Dominance and Mean-Variance Measures of Profit and Loss for Business Planning and Investment," Finance Working Papers 21922, East Asian Bureau of Economic Research.
- Wing-Keung Wong, 2007. "Stochastic Dominance and Mean-Variance Measures of Profit and Loss for Business Planning and Investment," SCAPE Policy Research Working Paper Series 0705, National University of Singapore, Department of Economics, SCAPE.
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More about this item
Keywords
Multivariate Stochastic Dominance; Risk Averters; Risk Seekers; Ascending stochastic dominance; descending stochastic dominance; utility function;All these keywords.
JEL classification:
- D81 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Criteria for Decision-Making under Risk and Uncertainty
- G11 - Financial Economics - - General Financial Markets - - - Portfolio Choice; Investment Decisions
NEP fields
This paper has been announced in the following NEP Reports:- NEP-ORE-2016-04-23 (Operations Research)
- NEP-RMG-2016-04-23 (Risk Management)
- NEP-UPT-2016-04-23 (Utility Models and Prospect Theory)
Statistics
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