ArgumentThis paper argues that the economics discipline is highly concentrated, which may inhibit scientific innovation and change in the future. The argument is based on an empirical investigation of six dimensions of concentration in economics between 1956 and 2016 using a large-scale data set. The results show that North America accounts for nearly half of all articles and three quarters of all citations. Twenty institutions reap a share of 42 percent of citations, five journals a share of 28.5 percent, and 100 authors a share of 15.5 percent. A total of 2.8 percent of citations may be attributed to heterodox schools of thought. Also top articles are concentrated along these dimensions. Overall, concentration has strongly increased over the last six decades.

中文翻译：

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经济学集中度的六个维度：来自大规模数据集的证据

论据本文认为，经济学学科高度集中，可能会抑制未来的科学创新和变革。该论点基于使用大规模数据集对 1956 年至 2016 年间经济学集中度的六个维度进行的实证调查。结果显示，北美占所有文章的近一半和所有引用的四分之三。20 家机构获得 42% 的引用，5 家期刊获得 28.5% 的引用，100 位作者获得 15.5% 的引用。共有 2.8% 的引用可能归因于异端学派。顶级文章也集中在这些维度上。总体而言，在过去 6 年中，集中度显着提高。