Two main hypotheses are usually put forward to explain the productivity advantages of larger cities: agglomeration economies and firm selection. Combes et al. (2012) propose an empirical approach to disentangle these two effects and fail to find any impact of selection on local productivity...

Transfers can do good; however, they can also result in massive failures. This paper presents a model that highlights the ambiguous nature of the impact of transfers on local endowments of social capital. It then describes an empirical investigation that illustrates that the receipt of EU...

This paper considers the "share-altering" technical change hypothesis in a spatial general equilibrium model where individuals have different levels of skills. Building on a simple Cobb-Douglas production function, our model shows that the implementation of skill-biased technologies requires a...

The paper consider the skill-biased "share-altering" technical change hypothesis in a spatial general equilibrium model where skilled and unskilled individual may exhibit different preferences for local amenities. A main novelty - both for labour and urban economics- is that, under this...

We present a model of industrial location and endogenous growth with congestion costs. According to the interplay between knowledge spillovers and commuting costs, we are able to obtain both a Krugman-type and a bell-shaped agglomeration outcome. In the first case, the economy experiences a...