The next (eighth) issue of the almanac "Istoki" continues the series published by the Publishing House of the Higher School of Economics . The central theme of the issue is the theoretical reflection of changes and qualitative changes in the economic reality and in the sphere of economic analysis itself. The opening almanacs present the problems of social construction of economic reality and new aspects in the history of the two, which became milestones in the development of economic analysis, theoretical revolutions - marginalist (1870s.) ) and formalistic (1950s. ). Articles by Russian authors, prepared for the almanac, are devoted to the issues of spatial and temporal coordinates in the representation of economic reality . The works of prominent American economists demonstrate the differences between monetarist and Keynesian approaches to the problems of monetary policy on the example of the US economy of the second half of the twentieth century. Qualitative changes in economic reality in the context of economic and historical research are considered in the article G. Clark, who asks the question: why not all countries of the world have become economically developed? Finish the almanac of works devoted to the history of Latin American structuralism - the direction of the analysis of economic development based on the concept of peripheral capitalism of the Argentine economist R. Prebisha . For specialists in the field of economic theory, history of economic thought, economic history and social science, students, undergraduates, graduate students and teachers of economic universities and specialties, as well as for a wide range of readers