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Asset pricing lies at the heart of financial economics, being not only the foundation of every other field in this subject area but also having prime relevance for practical decision-making. For this two-volume collection the editor has selected some of the most influential articles which have...
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This paper compares two approximation schemes for calculating the optimal portfolios in the discrete-time dynamic investment model, specifically, the mean-variance (MV) and the quadratic approximations, to the exact power function method. Future returns are estimated via the empirical...
Persistent link: https://www.econbiz.de/10009214071
This paper shows how to perform sensitivity analysis for Mean-Variance (MV) portfolio problems using a general form of parametric quadratic programming. The analysis allows an investor to examine how parametric changes in either the means or the right-hand side of the constraints affect the...
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Theory tells us that if return distributions are independent over time, an expected utility maximizing logarithmic-utility investor will almost surely accumulate the most long-run wealth. This paper examines the robustness of the result. Specifically, it examines the expected and unexpected...
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This paper employs numerical means to examine: (i) the expected return-beta plot in power utility Linear Risk Tolerance (LRT) economies, and (ii) whether, in the power utility economies, a valuation equation containing covariance and coskewness terms might better explain expected returns than...
Persistent link: https://www.econbiz.de/10009197614
Grouping does not produce a wide range of betas. Consequently, cross-sectional tests of the CAPM are bound to lack power. This paper provides a simple way to alleviate the problem by repackaging the data with zero-weight portfolios. When the CAPM is true and the data are repackaged, simulation...
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