This article develops a non-Bayesian methodology to analyse the time-varying structure of international linkages and market efficiency in G7 countries. We consider a non-Bayesian time-varying vector autoregressive (TV-VAR) model, and apply it to estimate the joint degree of market efficiency in...

We show the nonexistence of the well-known risk-free rate puzzle in the Japanese financial markets. This result crucially depends on the accurate estimates of the two basic parameters: the subjective discount factor and the degree of risk aversion, appearing in the standard Consumption-based...

We estimate a time varying autocorrelation of stock returns as a degree of market inefficiency; the relative inefficiency of the U.S. stock market varies from 1955 to 2006.

It has been common to assume that the relationship between economic activity and oil prices is asymmetric. Theoretical underpinnings for this asymmetry include costly sectoral reallocation, partial equilibrium models of irreversible investment, and some version of precautionary savings. Yet,...