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Working Paper
Human capital externalities, trade, and economic growth
Human capital, because of its special role in innovative activity and technological progress, has formed the bedrock of the new theories of endogenous growth. Human capital, however, not only serves as an engine of growth, but also as a productive input along with labor and physical capital. In this study, we distinguish between these two roles of human capital and find evidence of the importance of both. We also find that the relationship between growth and the external effects of human capital vary according to trade regime. When literacy rates are relatively high, open economies grow about ...
Journal Article
The nature and significance of intra-industry trade
In this article, Roy Ruffin gives an overview of intra-industry trade for the generalist. Intra-industry trade represents international trade within industries rather than between industries. Such trade is more beneficial than inter-industry trade because it stimulates innovation and exploits economies of scale. Moreover, since productive factors do not switch from one industry to another, but only within industries, intra-industry trade is less disruptive than inter-industry trade.
Journal Article
The theory and practice of free trade
David M. Gould, Roy J. Ruffin, and Graeme L. Woodbridge argue that free trade is supported both by economic principles and evidence from countries that have followed open market policies. The authors demonstrate that the countries whose markets are the most open have higher real output and economic growth. ; The authors show that many arguments for protection obscure the benefits countries derive from international trade. High-wage countries not only can compete with low-wage countries, they dominate the world economic stage. Trade deficits or surpluses are not inherently bad or good, but ...
Working Paper
Variety, globalization, and social efficiency
This paper puts recent work on the benefits of variety into the context of an exact quantitative analysis of the Dixit-Stiglitz-Krugman model of monopolistic competition. We show that the gains from international trade are almost completely determined by the increase in variety and not economies of scale, and that the social efficiency question is quantitatively insignificant. These results follow from allowing the number of varieties to affect the elasticity of demand facing each firm. Most applications of the DSK model abstract from variety?s effect by assuming that the elasticity of demand ...
Journal Article
Trade deficits: causes and consequences
According to conventional wisdom, trade balances reflect a country's competitive strength-the lower the trade deficit, the stronger the country's industries and the higher its rate of economic growth. In this article, David Gould and Roy Ruffin review the history of the conventional wisdom and empirically examine whether large overall trade deficits or bilateral trade imbalances are associated with lower rates of economic growth. They find that, once the fundamental determinants of growth have been accounted for, trade imbalances have little effect on rates of economic growth.
Working Paper
Variety, globalization, and social efficiency
This paper puts recent work on the benefits of variety into the context of a more complete quantitative analysis of the Dixit-Stiglitz-Krugman model of monopolistic competition. We show how the gains from globalization are reflected in the increase in variety and the exploitation of economies of scale, and that the social efficiency question is quantitatively insignificant. These results follow from examining a Bertrand-Nash equilibrium that allows for a finite number of varieties to affect the elasticity of demand facing each firm. We develop a precise expression for per capita real income ...
Journal Article
Income taxes as reciprocal tariffs
This article shows the equivalence between tariffs on international trade and income taxation. Traditionally, income taxes have been seen as lowering society's output through the household's labor-leisure trade-off. Income taxes also reduce the degree to which individuals specialize in market activity, which is similar to the way countries respond to tariffs in international trade. Income taxes discourage individuals from specializing in activities that reflect their comparative advantage. In so doing, income taxes may have their most distorting effects, not by encouraging individuals to ...
Journal Article
What determines economic growth?
Does increased investment in education enhance long-run economic growth, or does it simply reduce current consumption? Will free trade stimulate growth, or will it merely increase imports? ; For a long time, economists relied on an economic growth theory that offered little scope for understanding long-run growth movements. Recently, however, the study of economic growth has been reinvigorated by new developments in theory and empirical findings that suggest how long-run growth evolves. ; Because economic growth determines whether our grandchildren will have better lives than ours or whether ...
Journal Article
Externalities, markets, and government policy
Before the work of Ronald Coase, economists argued that externalities-unpriced benefits or costs-constituted the main exception to the rule that Adam Smith's invisible hand will efficiently allocate resources. Coase showed that externalities may or may not require a government solution, depending on the institutional setting of the problems and the size of transaction costs. Moreover, even in the absence of externalities, market transactions require low transaction costs. Firms exist to economize on those costs. In shifting the terms of the debate, Coase single-handedly moved economics from ...