文章基本信息

标题：Productivity Change in U.S. Coal Mining
本地全文：下载
作者：Darmstadter, Joel ; Kropp, Brian
期刊名称：Journal of Food Distribution Research
印刷版ISSN：0047-245X
出版年度：1997
期号：SUPPL
出版社：Food Distribution Research Society
摘要：Labor productivity in U.S. coal mining increased at an average annual rate of slightly over four percent during the past 45 years. This report examines key factors contributing to that record - particularly, technological innovation in both surface and underground mining and concurrent geographic shifts in U.S. coal production. Health, safety, and environmental regulations introduced in the sixties and seventies, as well as labor unrest, interrupted long-term productivity advance; but the interruption was of limited duration. Although our principal focus is on worker productivity, steady growth in the relative importance of nonlabor inputs underscores the need to consider total factor productivity. The report touches on the productivity record using that measure.
关键词：coal mining;productivity;technological change