This paper estimates agglomeration benefits based on city productivity differentials across five OECD countries … fragmentation and productivity, and represents the first empirical analysis of how metropolitan governance structures affect this … previous literature, the analysis confirms that city productivity tends to increase with city size; doubling city size is found …

This paper uses highly disaggregate data to study the impact of a new metro on firm productivity. The planned-route IV … within 750 meters to stations aggregate value added, mean firm productivity and the number of local units increase. Areas … between 1250 and 2000 meters experience a decrease in the number of local units but mean firm productivity does not change …