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A plot of expected returns versus betas obeys virtually no relation to an inefficient index portfolio's mean-variance location. If the index portfolio is inefficient, then the coefficients and R- squared from an ordinary-least-squares regression of expected returns on betas can equal essentially...
Persistent link: https://www.econbiz.de/10013118691
We derive a closed-form optimal dynamic portfolio policy when trading is costly and security returns are predictable by signals with different mean-reversion speeds. The optimal strategy is characterized by two principles: 1) aim in front of the target and 2) trade partially towards the current...
Persistent link: https://www.econbiz.de/10013151649
We study the effect of trading costs on information aggregation and acquisition in financial markets. For a given precision of investors' private information, an irrelevance result emerges when investors are ex-ante identical: price informativeness is independent of the level of trading costs....
Persistent link: https://www.econbiz.de/10012890471
international context. We present a two-country macroeconomic model in which agents are risk averse, assets are imperfect …
Persistent link: https://www.econbiz.de/10012763116
Value at Risk has become the standard measure of market risk employed by financial institutions for both internal and … methodologies developed so far give satisfactory solutions. Interpreting Value at Risk as a quantile of future portfolio values … assumptions invoked by existing methodologies (such as normality or i.i.d. returns). The Conditional Value at Risk or CAViaR model …
Persistent link: https://www.econbiz.de/10013218406
options in defined contribution retirement plans. We document large differences in realized TDF returns and risk profiles … reflects optimal risk-taking by fund families with low market share, especially those entering the market after 2006. Using … plan-level data, we find little evidence that 401(k) plan sponsors match the risk profile of the TDFs in their plans to the …
Persistent link: https://www.econbiz.de/10013109863
dividend yield is typically viewed as a reflection of either changing risk, related to the business cycle, or irrational … risk as well as expected return, we develop Bayesian methods to examine the interaction between the data and an investor … and a riskless asset. In general, however, the simple risk/return model of Merton (1980) explains very little of the yield …
Persistent link: https://www.econbiz.de/10012763077
risk-sharing. General equilibrium models and consumption data tend to find that the costs are small, typically less than … much higher variability of stocks, and/or (b) the higher degree of risk aversion required to reconcile an international …
Persistent link: https://www.econbiz.de/10012774983
an additional hedging motif driven by the interaction between real exchange rate risk and ambiguity aversion. What … matters is the long-run as opposed to the short-run risk. Domestic equity is a good hedge with respect to long-run real … exchange rate risk even when bonds are traded. The higher is the degree of ambiguity aversion, the stronger is the home bias …
Persistent link: https://www.econbiz.de/10012757854
If an investor wants to form a portfolio of risky assets and can exert effort to collect information on the future value of these assets before he invests, which assets should he learn about? The best assets to acquire information about are ones the investor expects to hold. But the assets the...
Persistent link: https://www.econbiz.de/10012759435