This paper examines the dynamic interaction between R&D and market structure in a horizontally differentiated market framework. Firms invest in R&D to modify the level of differentiation of their products, increasing their specialization and their market power. The invested resources in research...

We study the role of employment protection legislation (EPL) in explaining the relative small average size of Italian firms. We construct a simple model that shows that the smooth relation between size and growth probability is disturbed in proximity of the thresholds at which EPL applies...

Sargent (1999) warns that if policymakers� views on the unemployment - inflation tradeoff are driven by empirical correlations rather than theory, disinflations (escapes from high to low inflation) may periodically occurr but are not bound to last. This paper asks how different inflation...

Cointegration analysis tests for the existence of a significant long-run equilibrium among some economic variables. Standard econometric procedures to test for cointegration have proven unreliable when the long-run relation among the variables is characterized by non-linearities and persistent...

Many empirical studies have found both inter-industry and intra-industry externalities in the form of local knowledge spillovers in research. This paper makes some assumptions reflecting these empirical regularities in order to analyse their implications for the allocation of economic activities...

We propose two indexes to measure the agglomeration forces acting within and between different regions. Unlike the existing measures of agglomeration, our model-based indexes allow for simultaneous treatment of both aspects. Local plant diffusion in a given industry is modelled as a spatial...

Using a simple multi-country econometric model covering the three main countries of the euro area, the paper focuses on the role that can be played by information at the national level in defining the monetary policy of the Union. We find that the performance of a central bank that chooses the...

Why do some states default on their debt more often than others? We argue that sovereign default is the outcome of a political struggle among different groups of citizens. It is more likely to happen if: (i) domestic debt-holders are relatively weak; (ii) the the political costs of the financial...

We examine the impact of four factors on the fiscal policies of the euro-area countries over the last two decades: the state of public finances, the European fiscal rules, cyclical conditions and general elections. We rely on information actually available to policy-makers at the time of...

This paper analyzes the macroeconomic effects on the U.S. economy of news about oil supply by estimating a VAR. Information contained in daily quotations of oil futures contracts is exploited to estimate the dynamic path of oil prices following a shock. Hence, differently from the VAR literature...