Byrnes, Patricia; Färe, Rolf; Grosskopf, Shawna; … - In: Management Science 34 (1988) 9, pp. 1037-1053
The purpose of this paper is to compare the abilities of two competing analytical techniques---mathematical programming and statistical regression---to shed light on the union/nonunion productivity differential in U.S. surface coal mining. The programming approach has the virtues of being...