作者：University of Chicago
摘要：The gap between the mean wages of black men and white men in the United States narrowed substantially between 1940 and 1950. There was, however, almost no change in this wage gap between 1950 and 1960. Some of this discontinuity in the path of black progress can be explained by general changes in the wage structure-wage compression in the 1940s and slight expansion in the 1950s. However, most of the gains of the 1940s were driven by race-specific factors, including increasing relative wages co...
作者：NADER, J
摘要：This article makes use of nearly one thousand patents to trace the origins and evolution of professional invention in the midwestern harvester industry. These data indicate that professional inventors had become integrated into the industry by the 1870s. This unity of business and invention made firms loci of learning and fostered the rise of a market in technology through which patents and patentees became available.
作者：DEVRIES, J
摘要：The Industrial Revolution as a historical concept has many shortcomings. A new concept-the ''industrious revolution''-is proposed to place the Industrial Revolution in a broader historical setting. The industrious revolution was a process of household-based resource reallocation that increased both the supply of marketed commodities and labor and the demand for market-supplied goods. The industrious revolution was a household-level change with important demand-side features that preceded the I...
