"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."