Economists and the Economy
基于1950-1988年经济学文献样本，发现经济学家研究主题受经济环境影响：通胀和就业文章比例与实际通胀率和失业率直接相关，与真实收入增长率间接相关，且环境变化单向影响文献构成。
Using data from a sample of the economic literature published over the years 1950 through 1988, we find substantial support for an environmental theory of idea entrepreneurship among economists. In particular, we show that the percentage of economic articles devoted to the topics of inflation and employment are related directly to the actual inflation and unemployment rates in the economy and indirectly to the growth rate of aggregate real income. Moreover, we are able to provide evidence of undirectional causality running from changes in the economic environment to changes in the composition of the economic literature. Copyright 1990 by MIT Press.