Unlike the papers of some other great economists, those of Kenneth Arrow are being read and studied today with even greater care and attention than when they first appeared in the journals. The publication of his collected papers will therefore be welcomed by economists and other social scientists and in particular by graduate students, who can draw from them the deep knowledge and the discernment in selection of scientific problems that only a master can offer. The author has added headnotes to certain well-known papers, describing how he came to write them.

The study of production is central to economic theory, and capital and its accumulation are two of the most interesting aspects of the modern production process. Capital may take the form of inventories of inputs, inventories of outputs, or machines and other fixed goods. The essential and unique aspect of all types of capital is that it must be accumulated as the result of prior stages of the production process. This gives the dynamic theory of production a recursive structure that can be exploited by economic analysis. The optimization of production under recursive conditions lends itself to general mathematical methods of dynamic programming and optimal control theory. This is the main theme of the essays included in this fifth volume of Kenneth Arrow's Collected Papers.

Far more than an intellectual puzzle for pundits, economists, and policymakers, economic growth--its makings and workings--is a subject that affects the well-being of billions of people around the globe. In The Mystery of Economic Growth, Elhanan Helpman discusses the vast research that has revolutionized understanding of this subject in recent years, and summarizes and explains its critical messages in clear, concise, and accessible terms.

The tale of growth economics, as Helpman tells it, is organized around a number of themes: the importance of the accumulation of physical and human capital; the effect of technological factors on the rate of this accumulation; the process of knowledge creation and its influence on productivity; the interdependence of the growth rates of different countries; and, finally, the role of economic and political institutions in encouraging accumulation, innovation, and change.

One of the leading researchers of economic growth, Helpman succinctly reviews, critiques, and integrates current research--on capital accumulation, education, productivity, trade, inequality, geography, and institutions--and clarifies its relevance for global economic inequities. In particular, he points to institutions--including property rights protection, legal systems, customs, and political systems--as the key to the mystery of economic growth. Solving this mystery could lead to policies capable of setting the poorest countries on the path toward sustained growth of per capita income and all that that implies--and Helpman's work is a welcome and necessary step in this direction.

This intellectually bold but accessible book seeks to go beyond limitations of the reigning neoclassical and institutional paradigms in explaining the organization of economic activity. It does this by construing "non-economic" factors such as institutions, cultures, and social practices as conventions, which coordinate economic actors by defining specific "frameworks of economic action." In these conventional frameworks, the standard distinction between economic and non-economic no longer exists. The authors explore in detail four basic frameworks--or "possible worlds of production"--which underpin the mobilization of economic resources, the organization of production systems and factor markets, patterns of economic decision making, and forms of profitability. The case studies examine how these possible worlds act to support innovative production complexes in a variety of sectors in several countries.

Storper and Salais show that economic actors coordinate actions with one another and interpret what others are doing in ways that are constructed by convention. The principal challenge to economic policy today, they argue, is to reconcile internally coherent conventions with the external tests of product and financial markets, which tend increasingly to escape jurisdictional borders. There is no single model of growth and efficiency that brings these two sides together around the world today, even in narrowly defined product markets. If policies are to deal effectively with an increasingly unified global system of flows of commodities, money, and people, they must be aware of the diverse, economically viable action frameworks found in different industries, regions, and nations.