để người da đen di cư đến các thành phố phía Bắc và phương Tây có thể nhận được việc làm và trở nên tích hợp vào nền kinh tế công nghiệp sau chiến tranh. Myrdal (1957) sau đó áp dụng các nguyên tắc nhân quả tích lũy cho việc nghiên cứu phát triển kinh tế, | More free books @ JOHN HICKS reducing inequality. He thus advocated higher taxes on wealth capital gains and inheritances. Today virtually every developed country in the world has constructed a large macroeconometric model of nearly 1 000 equations. These models are used to study economic activity and to predict the future course of the economy. They are also used by governments and by central banks to help formulate economic policies. The existence of these macroeconometric models is due to the pioneering work of Tinbergen. This work makes Tinbergen one of the half dozen most important economists of the twentieth century. Works by Tinbergen Annual Survey of Significant Developments in General Economic Theory Econometrica 2 1 January 1934 pp. 26-8 An Econometric Approach to Business Cycle Problems Paris Hermann 1937 Statistical Testing of Business Cycle Theories 2 vols. Geneva League of Nations 1939 On a Method of Statistical Business Cycle Research A Reply Economic Journal 50 1940 pp. 141-54 Business Cycles in the United Kingdom 18701914 Amsterdam North-Holland 1951 On The Theory of Economic Policy Amsterdam North-Holland 1952 Centralization and Decentralization in Economic Policy Amsterdam North-Holland 1954 Economic Policy Principles and Design Amsterdam North-Holland 1956 Selected Papers Amsterdam North-Holland 1959 Shaping the World Economy Suggestions for an International Economic Policy New York Twentieth Century Fund 1962 Lessons from the Past Amsterdam North-Holland 1963 Income Distribution Analysis and Policies Amsterdam North-Holland 1975 Works about Tinbergen Baum Sandra R. Jan Tinbergen 1969 in Nobel Laureates in Economic Science ed. Bernard S. Katz New York and London Garland Publishing 1989 pp. 304-17 Bos Henk C. Jan Tinbergen A Profile Journal of Policy Modeling 6 2 1984 pp. 151-8 Hansen Bent Jan Tinbergen An Appraisal of His Contributions to Economics Swedish Journal of Economics 71 4 1969 pp. 2536 Keynes John Maynard Professor .