//-->
Cost of production ; Vol. 2
(1892)
Sunk costs and the variability of firm value over time
Lambson, Val E., (1995)
On the nature and magnitude of cost economies in hog production
Duvaleix-Tréguer, Sabine, (2016)
Monthly report on current wage developments
(1956)
Bulletin of the United States Bureau of Labor
(1913)
Industrial depressions
(1886)