This paper examines effects of economic growth and speed of adjustment on openness, human development, and fiscal policies. The model developed in this paper postulates that learning through experience raises labor productivity with three major consequences. First, the steady-state growth rate of output becomes endogenous and is influenced by government policies. Second, the speed of adjustment to steady-state growth increases and enhanced learning further reduces adjustment time. Third, both steady-state growth and the optimal net rate of return to capital are higher than the sum of the exogenous rates of technical change and population growth.

The paper presents a model of optimum currency areas using a general equilibrium approach with regionally differentiated goods. The choice of a currency union depends upon the size of the underlying disturbances, the correlation between these disturbances, the costs of transactions across currencies, factor mobility across regions, and the interrelationships between demand for different goods. It is found that, while a currency union can raise the welfare of the regions within the union, it unambiguously lowers welfare for those outside the union. [JEL F33, F36]

This paper analyzes the link between product variety and economic growth. It finds support for the hypothesis that a greater degree of product variety relative to the United States helps to explain relative per capita GDP levels. The paper presents an empirical study for South Africa, which indicates that there exists a stable money demand type of relationship among domestic prices, broad money, real income, and interest rates, as well as a long-term relationship among domestic prices, foreign prices, and the nominal exchange rate.

This paper analyzes portfolio diversification, leverage, and financial contagion. It studies the extent to which basic principles of portfolio diversification explain “contagious selling” of financial assets when there are purely local shocks. The paper demonstrates that the elementary portfolio theory offers key insights into “contagion.” Most important, portfolio diversification and leverage are sufficient to explain why an investor will find it optimal to significantly reduce all risky asset positions when an adverse shock impacts just one asset.

Sovereign wealth funds are a growing and dynamic force in international finance. The shifting international economic relations from capital rich states gives them new power in influencing the global agenda. Despite controlling trillions of dollars in the biggest companies in the world, little is known about the opaque funds of oil rich and non-democratic governments. This is the first book to compile a history of sovereign wealth funds recounting the Abu Dhabi Investment Authority's involvement with the scandal-plagued BCCI bank and Chinese arms exports to Iran. By constructing a history within the proper context of oil driven surpluses and large inflationary pressures with no international investment framework, this book explains the development and growth of sovereign wealth funds. The economics of capital surplus countries and investment strategies are examined in order to better understand sovereign wealth fund creation and growth. In a straightforward and accessible style, the author examines the complex and amazing growth of an unknown group of investors controlling trillions of dollars worldwide.

An attentive reader embarking on this book might wonder what "the" economic transition to which the title refers might be. In this century almost all countries have gone through periods of economic transition; but which period of economic history can claim to embody the notion or to represent the era of "the" transition? Definitely, no country or group of countries has experienced anything comparable to the economic upheavals that the fall of communism has brought about in a large portion of the world in just three years (1989 to 1991). No other "transition" to date has prompted more interest and more studies among economists, academics and policy-makers than has the transformation of centrally planned economies into market-based systems. It is this transformation that has come to define "the" transition. Early in the transformation process (in November 1990), with the support of the Centre for Co-operation with the Economies in Transition (CCET), I launched a conference to examine the challenges faced by these countries. About six years have gone by and a new economic landscape has emerged in that part of the world. The difficulties in transforming these economies have exceeded all expectations, and economic performances have varied considerably across countries. The time has come, therefore, to make a first evaluation of progress and problems, with a view to extracting useful policy lessons to guide policy-makers in successfully completing the transition in the near future.

This first issue of Volume 51 for 2004 includes a new paper by Peter B. Clark and Jacques J. Polak, along with a tribute from the Editor to Mr. Polak in honor of his 90th birthday. This issue also launches a new featured section, "Data Issues," which will be devoted in future issues to on-going discussions of the latest in econometric and statistical tools for economists, data puzzles, and other related topics of interest to researchers.