Technical change and market structure

This paper investigates the ceteris-paribus effects of labor reducing technical progress on industry-wide employment under different market regimes. We distinguish between a contestable market, a monopoly, and a market with bounded supplier power. Under a constant wage rate, employment will not decrease only if the elasticity of demand on a contestable market exceeds one. The same thing holds for markets with bounded supplier power. Under a monopoly, price elasticity must even be more than three. Ceteris paribus we thus have to expect a higher probability of employment reduction under a monopoly than under other market regimes. Raising wages proportional to productivity leads to an employment reduction on stagnating markets with supplier power. Here a raise in wages without layoffs is only possible if the growth in demand is at least as high as the growth in productivity.The author is indebted to Alfred E. Ott, Sabine Böckem, Rolf Wiegert and Ulf Schiller for valuable comments. Of course, I take responsibility for all remaining errors.