Optimal portfolios differ according to the length of time they are held without being rebalanced. For the case in which asset returns are identically and independently distributed, it has been shown that optimal portfolios become less diversified as the holding period lengthens.We show that the...

Since 1947, hyperinflations (by Cagan’s definition) in market economies have been rare. Much more common have been longer inflationary processes with inflation rates above 100 percent per annum. Based on a sample of 133 countries, and using the 100 percent threshold as the basis for a...

This paper summarizes the macroeconomic performance of the transition economies. We first review the initial conditions confronting these economies, the reform strategy that was proposed, and the associated controversies that arose a decade ago. We then account for the widely different outcomes,...

This paper analyzes the growth and stabilization experience in 26 transition economies in eastern Europe, the former Soviet Union, and Mongolia for the period 1989-1994. Inflation rates have declined significantly in most countries following an inflation stabilization program. Growth resumes...

The paper analyzes the scope and implications of greater economic integration in the Middle East and North Africa (MENA). After reviewing whether MENA satisfies the defining characteristics of a region, it documents the low level of regional economic interaction. It argues that gains from...