A time homogeneous, purely discontinuous, parsimonous Markov martingale model is proposed for the risk neutral dynamics of equity forward prices. Transition probabilities are in the variance gamma class with spot dependent parameters. Markov chain approximations give access to option prices. The...

Households face earnings risk which is non-normal and varies by age and over the income distribution. We show that allowing for these rich features of earnings dynamics, in the context of a structurally estimated life-cycle portfolio choice model, helps to rationalize the limited participation...

Investors show different behaviour in falling markets and in rising markets. This paper demonstrates that the beta of individual stocks varies across the entire return distribution and that the variation depends on the frequency of the returns. While there is a symmetric u-shape increase for...

In this paper, we conducted an empirical analysis of the impact of implementation of shareholder perks, which attract small investors, on the risks of Japanese stocks. We tested hypotheses on the impact of implementation of shareholder perks on cost of equity capital, idiosyncratic risk, stock...

Presentation Slides for "Overconfidence, Arbitrage, and Equilibrium Asset Pricing" This paper offers a model in which asset prices reflect both covariance risk and misperceptions of firmsapos prospects, and in which arbitrageurs trade against mispricing. In equilibrium, expected returns are...

Momentum is a pervasive asset-pricing anomaly that has been shown to exist in a number of markets and asset classes. Three possible explanations for momentum have emerged in the literature; risk, positive autocorrelation and negative cross-serial correlation. Lewellen (2002) adds to this...

Momentum profits can be explained by exposure to risks omitted from common factor models (distress risk, idiosyncratic risk, and covariance with corporate bonds) and underreaction to innovations in these risks. Momentum strategies tend to go long risky stocks with high expected returns....

To explore how portfolio allocations among equities, fixed income securities, and cash are impacted by investors' risk and return expectations, this paper explores portfolio reallocations among equity, bond, and money market mutual funds. As predicted by the literature on optimal portfolio...

To explore how portfolio allocations among equities, fixed income securities, and cash are impacted by investors' risk and return expectations, this paper explores portfolio reallocations among equity, bond, and money market mutual funds. As predicted by the literature on optimal portfolio...

Assuming that risk premiums are determined by failure risk, we present a stylized model of interactions among risk-proxy variables, external financing, and stock returns in which a common mispricing factor, involving operating profit and external financing, drives the following five asset...