Showing 1 - 10 of 627,925
I study the effects of risk and ambiguity (Knightian uncertainty) on optimal portfolios and equilibrium asset prices when investors receive information that is difficult to link to fundamentals. I show that the desire of investors to hedge ambiguity leads to portfolio inertia and excess...
Persistent link: https://www.econbiz.de/10013133587
I study the effects of aversion to risk and ambiguity (uncertainty in the sense of Knight (1921)) on the value of the market portfolio when investors receive public information that they find difficult to link to fundamentals and hence treat as ambiguous. I show that small changes in public...
Persistent link: https://www.econbiz.de/10013134524
under ambiguity, called Shadow probability theory, a generalization of the Choquet expected utility. In this model … space. Risk and risk attitude, on the other hand, apply to the subordinated space, as in classical expected utility theory … the classical asset pricing theory by incorporating ambiguous probabilities. It proposes a well defined ambiguity premium …
Persistent link: https://www.econbiz.de/10013119880
In this study, we employ a statistical arbitrage approach to demonstrate that momentum investment strategy tend to work better in periods longer than six months, a result different from findings in past literature. Compared with standard parametric tests, the statistical arbitrage method...
Persistent link: https://www.econbiz.de/10013091434
We present comprehensive evidence in support of giving liquidity equal standing to size, value/growth, and momentum as investment styles, as defined by Sharpe (1992). First, we show that financial market liquidity, as identified by stock turnover, is an economically significant indicator of...
Persistent link: https://www.econbiz.de/10013093548
There has been considerable research into dynamic global tactical asset allocation (GTAA) strategies driven by simple measures of Valuation and Momentum applied to a baseline balanced portfolio of equities and fixed income (see Blitz and van Vliet 2008, Wang and Kochard 2011, Gnedenko and Yelnik...
Persistent link: https://www.econbiz.de/10012838940
S&P 500 Index option-based volatility indexes have untenable risk-return profiles. These volatility indexes are not designed with consideration of important real-world risk characteristics of options and fail to represent volatility as a differentiated asset-class with relevance to the long-term...
Persistent link: https://www.econbiz.de/10012865881
Using new textual analysis techniques to extract a broad set of disclosed risk factors from firms' SEC filings, I examine characteristics of the firms and industries most likely to make each type of disclosure, and investigate the relation between firms' risk disclosures and their stock return...
Persistent link: https://www.econbiz.de/10013046362
We provide new empirical evidence on investors' firm-level trading behavior in response to daily changes in stock ambiguity-Knightian uncertainty. The effect of ambiguity is distinct from and contrasts with the well-documented effect of risk, and shares a similar economic significance. An...
Persistent link: https://www.econbiz.de/10012831017
We build an equilibrium model to explain why stock return predictability concentrates in bad times. The key feature is that investors use different forecasting models, and hence assess uncertainty differently. As economic conditions deteriorate, uncertainty rises and investors' opinions...
Persistent link: https://www.econbiz.de/10011721618