Below is a list of the prizewinners during the period 1969 - 1980 with a description of the works which won them their prizes:(1969) R FRISCH & J TINBERGEN — for having developed and applied dynamic models for the analysis of economic processes; (1970) P SAMUELSON — for the scientific work through which he has developed static and dynamic economic theory and actively contributed to raising the level of analysis in economic science; (1971) S KUZNETS — for his empirically founded interpretation of economic growth which has led to new and deepened insight into the economic and social structure and process of development; (1972) J R HICKS & K J ARROW — for their pioneering contributions to general economic equilibrium theory and welfare theory; (1973) W LEONTIEF — for the development of the input-output method and for its application to important economic problems; (1974) G MYRDAL & F A VON HAYEK — for their pioneering work in the theory of money and economic fluctuations and for their penetrating analysis of the interdependence of economic, social and institutional phenomena; (1975) L KANTOROVICH & T KOOPMANS — for their contributions to the theory of optimum allocation of resources; (1976) M FRIEDMAN — for his achievements in the fields of consumption analysis, monetary history and theory and for his demonstration of the complexity of stabilization policy; (1977) B OHLIN & J MEADE — for their pathbreaking contribution to the theory of international trade and international capital movements; (1978) H A SIMON — for his pioneering research into the decision-making process within economic organizations; (1979) T W SCHULTZ & A LEWIS — for their pioneering research into economic development research with particular consideration of the problems of developing countries; (1980) L R KLEIN — for the creation of econometric models and their application to the analysis of economic fluctuations and economic policies.