Economically active people are either in gainful employment, are unemployed or self-employed. We are interested in the dynamics of the transitions between these states across the business cycle. It is generally perceived that employment or self-employment are absorbing states. However,...

In the large literature on firm performance, economists have given little attention to entrepreneurs. We use deaths of more than 500 entrepreneurs as a source of exogenous variation, and ask whether this variation can explain shifts in firm performance. Using longitudinal data, we find large and...

How can we explain the success of cooperative networks of firms that share innovations, such as Silicon Valley or the Open Source community? This Paper shows that if innovations are cumulative, making an invention publicly available to a network of firms may be valuable if the firm expects to...

The European Union (EU) provides grants to disadvantaged regions of member states from two pools, the Structural Funds and the Cohesion Fund. The main goal of the associated transfers is to facilitate convergence of poor regions (in terms of per-capita income) to the EU average. We use data at...

Since the early 1990s, there has been a renaissance in the study of regional growth, spurred by new models, methods and data. We survey a range of modelling traditions, and some formal approaches to the ’hard problem’ of regional economics, namely the joint consideration of agglomeration and...

We study the interplay between transportation infrastructure, knowledge flows, and innovation. Exploiting historical data on planned portions of the interstate highway system, railroads, and exploration routes as sources of exogenous variation, we estimate the effect of U.S. interstate highways...

Using plant-level data for the Irish manufacturing sector over the period 1983-98, we study the coagglomeration of domestic plants and foreign multinationals in Ireland. To this end we make use of the index developed by Ellison and Glaeser (1997) and find coagglomeration to be important for a...

This paper presents a dynamic, two-region general equilibrium model in which inter-regional production and trade patterns are endogenously determined. Localized growth stems from geographical concentration of an industrial sector exhibiting permanent productivity increases. Geographical...

This Paper proposes a two-region model of endogenous growth, which is a natural combination of a core-periphery model a la Krugman and of a model of endogenous growth a la Grossman/Helpman/Romer. Specifically, we add to the core-periphery model an R&D sector that uses skilled labour to create...

Anti-trust problems affecting markets for intermediate goods or services raise the input costs of firms operating in downstream sectors, which often face tough international competition. Such firms lose market share, thus worsening the economic performance of the country. We try to document the...