"Blanchflower and Oswald [Blanchflower, David G. and Oswald, Andrew J., 1994a, The Wage Curve, (Cambridge, MA, MIT Press), Blanchflower, David G. and Oswald, Andrew J., 1994b, Estimating a Wage Curve for Britain 1973–90, The Economic Journal 104, 1025–1043. Eine praktische Einführung, Nürnberg] reported that they have found an ‘empirical law of economics’ — the Wage Curve. Our paper reconsiders the western German Wage Curve using disaggregated regional data and is based on almost one million employees drawn from the Federal Employment Services of Germany over the period 1980–2004. We find that the wage equation is highly autoregressive but far from unit root. The unemployment elasticity is significant but relatively small: only between − 0.02 and − 0.04. We also check the sensitivity of this elasticity for different population groups (young versus old, men versus women, less educated versus highly educated, German native versus foreigner), confirming that it is stronger the weaker the bargaining power of the particular group."
"We analyse whether wage differences between cities and rural areas in western Germany are due to unobserved differences in regional price levels. Since regional prices are available for only 10% of the regions we use multiple imputation to generate prices for all regions. Our results show that the nominal agglomeration wage differential is 25%, whereas the real differential is 19%. If we control for the composition of the labour force and jobs, the real wage differential is 4%. If we additionally control for differences in regional building land prices the agglomeration wage differential vanishes."