gasoline market confirms that increases in concentration reduce product variety. Ignoring this product variety effect is likely …

The paper estimates the lower bound for market concentration taking as reference the framework advanced by Sutton (1991 … concentration lower bound towards zero in exogenous sunk costs industries in line with previous empirical evidence for developed …

positive spatial autocorrelation coefficient, which shows a spatial concentration of military autocracies. In particular, in …

interpret it as highlighting the concentration of economic activity and trade flows at the local level. …