Gianmaria Martini

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In our duopoly, an irreversible investment incorporates a signi…cant amount of R&D, so that the improvement it introduces in production processes generates a spillover lowering the second comer's investment cost. The presence of the inter-…rm spillover substantially a¤ects the equilibrium of the dynamic game: for low – and hence realistic – spillover(More)
BACKGROUND In Italy, copayment has changed its nature and it can no longer be simply considered a system to curb inappropriate expenditure. It has become an important form of revenue for public health care provision, but it might also become a source of distortions in income and health benefits redistribution. METHODS We use a rich administrative dataset(More)
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