Those floppy disks and their downloadable successors made it easy, perhaps too easy, for economists to test their pet theories of growth across a broad canvas of countries and decades.

那些软盘及其可下载的后续版本，学家们能够轻松——或许过轻松——在跨越多国家和数十年的广阔背景下， 检验他们关增长的独特理论。

1956. In A Contribution to the Theory of Economic Growth, U.S. economist Robert Solow applies the idea of diminishing marginal returns to the growth prospects of countries.

1956年。在美国学家罗伯特·索洛的《增长理论的贡献》一文中，他将边际收益递减的概念应用国家的增长前景。