This paper deals with the estimation of the risk-return trade-off. We use a MIDAS model for the conditional variance and allow for possible switches in the risk-return relation through a Markov-switching specification. We find strong evidence for regime changes in the risk-return relation. This...

This article examines the validity of regressions that use the ratio variables as regressors for analyzing the stock returns. Although price-earnings and price-book value ratios have been often used as regressors, their coefficients rarely find the causal effects due to the omitted variables...