Over recent years `opportunity cost' (OC) models of growth have been constructed which suggest that firms take advantage of the possibility of intertemporal subsitution in order to engage in productivity-improving activities during recessions. This paper tests whether this argument is correct,...

This paper adds a highly-leveraged financial sector to the Ramsey model of economic growth and shows that this causes the economy to behave in a highly volatile manner: doing this strongly augments the macroeconomic effects of aggregate productivity shocks. Our model is built on the financial...

We develop a dynamic stochastic general equilibrium model to study bank risk and sovereign risk interdependence in the Euro Area. We find that an increase in capital investment risk shock, results in a considerably deeper recession when sovereign risk is also present. This result has three...

This paper surveys recent work on competition in markets in which consumers face costs to switching between competing firms' products, even when all firms' products are functionally identical. I address issues in macroeconomics, international trade and industrial organization: In a market with...

We develop a simple growth model with imperfect competition in which demand conditions can affect the dynamics of capital accumulation, hindering or enhancing growth. In our model the elasticity of the demand schedule faced by a typical firm depends on the aggregate savings rate. The latter...

This paper explores the role of stabilization policy in a model where firm entry responds to shocks and uncertainty. We evaluate stabilization policy in the context of a simple analytically solvable sticky price model, where firms have to prepay a fixed cost of entry. The presence of endogenous...

The paper focuses on labor and product market deregulations, as fundamental elements in the passage from an investment to an innovation-based economy. The approach undertaken is prominently empirical. After a very brief description of the regulatory levels on the two sides of the Atlantic, we...

This paper studies the extensive and intensive margins of firms' global sourcing decisions. We develop a quantifiable multi-country sourcing model in which heterogeneous firms self-select into importing based on their productivity and country-specific variables. The model delivers a simple...

We analyse strategic interaction in R&D internationalization decisions by two multinational firms competing both abroad and in their home markets and examine different incentives for foreign R&D faced by technology leaders and technology laggards. The model takes into account the impact of local...

External knowledge is an important input for the innovation process of firms. Increasingly, this knowledge is likely to originate from outside of their national borders. This explains the preoccupation of policymakers with stimulating local technology transfers coming from international firms....