This study was conducted to explore the varying volatility of world rice price for the period 1961 to 2008 using monthly data. The paper provides estimates of two GARCH models, namely, GARCH and EGARCH which were used to capture the stochastic variation and asymmetries in the world rice price....

We show in this paper that volatility measures can be misleading indicators of risk if returns do not follow a Gaussian distribution. A more reliable measure of risk is the probability distribution of the return on an asset. Estimators for these measures are usually challenging and need of...

This paper examines the degree to which four emerging stock markets in the Arab Gulf countries (Bahrain, Kuwait, Oman and Saudi Arabia) are regionally linked and the implications of this on portfolio diversification and hedging strategies. We find that conditional heteroscedasticity is present...

This paper assesses the plausibility of popular models of the monetary transmission mechanism for the G7 countries. For this purpose, flexible structural vector autoregressions are used to relaxe the restrictions behind the traditional identifying schemes of monetary-policy shocks and their...

This paper presents a new dynamic ARCH-related conditionally heteroscedastic stochastic frontier model specification where firm and time-specific technical inefficiency is represented by an autoregressive stochastic process in the error components. Monte Carlo results reveal that a one-sided...

This paper examines the degree to which four emerging stock markets in the Arab Gulf countries (Bahrain, Kuwait, Oman and Saudi Arabia) are regionally linked and the implications of this on portfolio diversification and hedging strategies. We find that conditional heteroscedasticity is present...

The sensitivity of U.S. aggregate investment to shocks is procyclical: the response upon impact increases by approximately 50% from the trough to the peak of the business cycle. This feature of the data follows naturally from a DSGE model with lumpy microeconomic capital adjustment. Beyond...

This paper gauges the international integration hypothesis, i.e. risk-adjusted anticipated returns are identical, even when financial instruments are traded in different countries. This hypothesis is verified by testing the equality between domestic and foreign risk prices induced by a...