Abstract
The characteristics of the mean-variance, efficient portfolio frontier have been discussed at length in the literature. However, for more than three assets, the general approach has been to display qualitative results in terms of graphs. In this paper, the efficient portfolio frontiers are derived explicitly, and the characteristics claimed for these frontiers are verified. The most important implication derived from these characteristics, the separation theorem, is stated and proved in the context of a mutual fund theorem. It is shown that under certain conditions, the classic graphical technique for deriving the efficient portfolio frontier is incorrect.
Keywords
Affiliated Institutions
Related Publications
Mean‐Variance Spanning
ABSTRACT The authors propose a likelihood‐ratio test of the hypothesis that the minimum‐variance frontier of a set of K assets coincides with the frontier of this set and anothe...
A Test of the Efficiency of a Given Portfolio
A test for the ex ante efficiency of a given portfolio of assets is analyzed. The relevant statistic has a tractable small sample distribution. Its power function is derived and...
Responsible investing: The ESG-efficient frontier
We propose a theory in which each stock's environmental, social, and governance (ESG) score plays two roles: (1) providing information about firm fundamentals and (2) affecting ...
SECURITY PRICES, RISK, AND MAXIMAL GAINS FROM DIVERSIFICATION*
Sections II and III of this paper set forth the simple logic which leads directly to the determination of explicit equilibrium prices of risk assets traded in competitive market...
ON THE PRICING OF CORPORATE DEBT: THE RISK STRUCTURE OF INTEREST RATES*
The value of a particular issue of corporate debt depends essentially on three items: (1) the required rate of return on riskless (in terms of default) debt (e.g., government bo...
Publication Info
- Year
- 1972
- Type
- article
- Volume
- 7
- Issue
- 4
- Pages
- 1851-1851
- Citations
- 1038
- Access
- Closed
External Links
Social Impact
Social media, news, blog, policy document mentions
Citation Metrics
Cite This
Identifiers
- DOI
- 10.2307/2329621