cities toughen competition, allowing only the most productive to survive) and agglomeration economies (larger cities promote … a generalised version of a tractable firm selection model and a standard model of agglomeration. Stronger selection in … larger cities left-truncates the productivity distribution whereas stronger agglomeration right-shifts and dilates the …

Firms are more productive on average in larger cities. Two explanations have been offered: agglomeration economies … selection model and a standard model of agglomeration. Stronger selection in larger cities left-truncates the productivity … distribution whereas stronger agglomeration right-shifts and dilates the distribution. We assess the relative importance of …

of agglomeration effects on growth prospects of firms is less clear. Because of the heterogeneity of industries …, different agglomeration mechanisms, or the way how industrial clusters are identified and spatially delimited, the conclusions … separately. Therefore, for each firm a micro-geographically defined agglomeration measure is calculated, which is free of the …

-geographically defined agglomeration measures, free of the modifiable areal unit problem (MAUP), are used to study 23 industries. The spatial … impacts of agglomeration of related economic and knowledge generating activities are examined by using travel time distances … prospects tend to be hampered by the agglomeration of own-industry employment, but improved by proximate scientific activity …