A non-Bayesian time-varying model is developed by introducing the concept of the degree of market efficiency that varies over time. This model may be seen as a reflection of the idea that continuous technological progress alters the trading environment over time. With new methodologies and a new...

This paper examines how the Tokyo and Osaka rice futures markets in prewar Japan were evolving in view of market efficiency. Applying a non-Bayesian time-varying model approach to analyze the famous equation for the futures premium, we find that the market efficiency of the two major rice...

In this study, we examine how the rice futures market in prewar Japan evolved in light of changes in market efficiency over time. Using a non-Bayesian time-varying VAR model, we compute the time-varying degree of market efficiency of the rice futures exchanges in Tokyo and Osaka. Then, we...

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...

A multivariate, non-Bayesian, regression-based, or feasible generalized least squares (GLS)-based approach is proposed to estimate time-varying VAR parameter models. Although it has been known that the Kalman-smoothed estimate can be alternatively estimated using GLS for univariate models, we...

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 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...