These questions have long been posed with respect to John Maynard Keynes and the development of macroeconomics in response to the Great Depression of the 1930s. The Depression transformed the views of economists about macroeconomic policy and also diminished the profession’s confidence in the desirability of free trade, particularly for developing countries. The collapse of world trade in the early 1930s led to a sharp deterioration in the terms of trade of commodity exporters. These countries, it was believed, could no longer rely on export growth to promote development. This “export pessimism” led to the idea that inward-oriented policies, aimed at building up domestic industries, would be a better way to foster economic growth and development. “As a young economist, I was a neoclassicist and fought against protection,” the Argentine economist Raúl Prebisch recalled. “But during the world Depression, throwing overboard a substantial part of my former beliefs, I was converted to protectionism.”
As a result, the leaders of the new field of development economics that emerged in the 1950s—including Prebisch, Gunnar Myrdal, W. Arthur Lewis, Albert Hirschman, Ragnar Nurkse, and Hans Singer, among others—were generally skeptical about unfettered trade. The static model of specialization and comparative advantage seemed to imply that producers of primary products would remain trapped exporting raw materials and never industrialize. Developing countries faced a chronic shortage of foreign exchange, which they needed to purchase capital goods that were essential for industry. Most experts believed that increasing foreign exchange earnings through exports was not possible (export pessimism) because foreign demand for commodities and raw materials was not growing rapidly and was not very price sensitive. Because foreign exchange earnings were constrained, governments needed to carefully regulate spending on imports. Quantitative restrictions on imports were viewed as the best way of dealing with balance-of-payments difficulties. These import substitution policies would encourage domestic production in replacement of expensive foreign manufactured goods, thereby saving valuable foreign exchange and promoting domestic industries. Alternative policies, such as a devaluation, would fail to stimulate exports (due to the price insensitivity of foreign demand) and simply raise the cost of imported capital goods and other essential imported products.
But just as the Keynesian Revolution of the 1930s was challenged by the Monetarist Counterrevolution in the 1960s, the trade and development consensus of the 1950s was challenged by a “neoclassical counterrevolution” in the 1980s. In both cases, changing circumstances and new evidence brought generally accepted views into question and forced economists to revise their previously held beliefs. In the case of Keynesian economics, it was the coexistence of rising inflation and higher unemployment; in the case of trade and development, it was the relative success of countries pursuing outward-oriented trade strategies in contrast to the apparent inefficiencies associated with an inward-oriented approach. Also in both cases, the counterrevolution originated in the 1960s and came into greater prominence in the 1970s and 1980s.
The challenge to the Keynesian consensus is often associated with a few key individuals, particularly Milton Friedman. Similarly, the overturning of the trade and development consensus also depended on a few key individuals. In particular, four economists—Ian Little, Jagdish Bhagwati, Anne Krueger, and Béla Balassa—were largely responsible for persuading the profession to view existing government policies regarding trade and development more critically. Each of them provided descriptive evidence on the deficiencies of import substitution and empirical estimates of the costs associated with protectionist policies, sometimes supplemented with theoretical work that clarified the issues involved. Little coauthored a prominent book detailing the problems with inward-oriented trade policies. Bhagwati coauthored a pathbreaking theoretical paper that strengthened the case for free trade and coauthored an important book on India’s experience with trade controls. Krueger analyzed the costs of foreign exchange controls and published a famous theoretical paper on rent seeking and quantitative import restrictions. Balassa calculated unexpectedly high rates of effective protection for industries in developing countries and later compared the favorable economic performance of export-oriented countries to that of inward-oriented ones.
Working independently, these economists concluded that import controls were a poor way of addressing balance-of-payments problems, that devaluations would in fact help stimulate exports and increase much-needed foreign exchange earnings, and that tariffs were a better policy instrument than quantitative restrictions or administrative controls in regulating imports. These findings supported the view that developing countries could benefit from less suppression of imports and more openness to trade. By the 1970s, these views contributed to a marked shift in the professional consensus on trade policy and economic development.
This paper examines how these four economists arrived at the views that eventually proved to be so influential within the economics profession. Whereas previous economists had speculated about what trade policies might best serve the interests of developing countries, these four studied the actual policies pursued by governments and the actual outcomes of those policies. Remarkably, each approached the basic question of which type of trade regime would best advance economic development as an open one, because there was no clear evidence at the time. As Bhagwati put it: “The intellectual challenges of the 1950s and 1960s were … substantial and real: we really had little clue, if we were to be truthful, as to which trade and payments regime options for LDCs [less developed countries] would yield superior economic performance.”
In each case, practical experience and empirical observation, sometimes through cross-country comparisons, shed light on the effect of different policies and led to conclusions that shaped the positions these economists came to hold. Three of the four were consultants to institutions such as the World Bank and the US Agency for International Development from which they gained firsthand knowledge of developing-country trade policy. Those experiences deeply influenced their outlook. For three of the four, India proved to be an important country from which to draw their inferences. Two of them (Little, Bhagwati) changed their minds during their research. Only one (Balassa) had what might be called an ideological precommitment to a market orientation, but even he focused on evidence rather than theory or a priori reasoning.
The identification of particular individuals as critical to building a new professional consensus requires a judgment about whom to include and exclude. Other contenders are Peter Bauer, Deepak Lal, Robert Baldwin, and Max Corden. While each made important scholarly contributions, none had quite the same influence on the trade and development consensus as the four selected here. Bauer and Lal wrote more against planning and foreign aid than about trade policy specifically. Corden and Baldwin are famous for their trade research in the 1960s, Corden for the theory of effective protection and Baldwin for infant industry protection, but neither focused on developing-country policy issues to the same degree as the others.
This paper examines the process by which Little, Bhagwati, Krueger, and Balassa came to reach similar conclusions about trade regimes and economic performance in developing countries. The evolution of their views is set out in their contemporaneous writings, supplemented by later recollections, which are of course self-reported but largely corroborated. The paper does not focus on how the four came to have broader influence within the profession and among policymakers. The paper concludes with some speculation about how economists reach conclusions that have the potential to change the profession’s views on policy matters.