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 …

that contrasts cross-country evidence on agglomeration benefits with the productivity impact of metropolitan governance … lower levels of productivity. The estimated elasticity for an increase in the number of local jurisdiction is 0.06, which is … literature that city productivity increases with city size with an elasticity in the range of 0.02 to 0.05. …