Endogeneity of Return Parameters and Portfolio Selection: An Analysis on Implied Covariances
- Resource Type
- Article
- Authors
- 박구현; Thomas Rhee
- Source
- Asia-Pacific Journal of Financial Studies, 46(5), pp.760-789 Oct, 2017
- Subject
- 경영학
- Language
- English
- ISSN
- 2041-6156
2041-9945
The paper presents a method to measure forward-looking covariance risk for any two assets even when the explicit market for barter trades does not exist. We argue that the terms of trade in any barter exchanges also follow a martingale process with no arbitrage. We then compute various bivariate martingale probabilities for different assets to value all possible pseudo exchange options. This makes it possible for one to compute implied covariances embedded in the value of any exchange options as in Margrabe (1978). The paper also discusses how these “recoverable” implied return distribution parameters can impact portfolio choice.