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How do countries hold their financial wealth? We construct a new database of countries' claims on capital located at home and abroad, and international borrowing and lending, covering 68 countries from 1966 to 1997. We find that a small amount of capital flows from rich countries to poor...
Persistent link: https://www.econbiz.de/10012470955
Recently much progress has been made in developing optimal portfolio choice models accomodating time-varying opportunity sets, but unless investors are unreasonably risk averse, optimal holdings include unreasonably large equity positions. One reason is that most studies assume investors behave...
Persistent link: https://www.econbiz.de/10012470967
We examine the implications of portfolio theory for the cross-sectional behavior of equity trading volume. Two …
Persistent link: https://www.econbiz.de/10012471146
Typical value-at-risk (VAR) calculations involve the probabilities of extreme dollar losses, based on the statistical distributions of market prices. Such quantities do not account for the fact that the same dollar loss can have two very different economic valuations, depending on business...
Persistent link: https://www.econbiz.de/10012471198
This paper analyzes optimal portfolio decisions of long-horizon investors with undiversifiable labor income risk and exogenous expected retirement and lifetime horizons. It shows that the fraction of savings optimally invested in stocks is unambiguously larger for employed investors than for...
Persistent link: https://www.econbiz.de/10012471376
We investigate the portfolio choices of mean-variance-optimizing investors who use sample evidence to update prior beliefs centered on either risk-based or characteristic-based pricing models. With dogmatic beliefs in such models and an unconstrained ratio of position size to capital, optimal...
Persistent link: https://www.econbiz.de/10012471499
attention in financial theory and practice. On the other hand, investors have not been given much guidance about which assets …
Persistent link: https://www.econbiz.de/10012471596
survey and interpret the large body of recent work that adapts traditional portfolio theory to answer, what should an …
Persistent link: https://www.econbiz.de/10012471617
Implications of factor-based asset pricing models for estimation of expected returns and for portfolio selection are investigated. In the presence of model mispricing due to a missing risk factor, the mispricing and the residual covariance matrix are linked together. Imposing a strong form of...
Persistent link: https://www.econbiz.de/10012471625
This paper evaluates various explanations for the profitability of momentum strategies documented in Jegadeesh and Titman (1993). The evidence indicates that momentum profits have continued in the 1990's suggesting that the original results were not a product of data snooping bias. The paper...
Persistent link: https://www.econbiz.de/10012471628