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)
  • Zava Aydemir, Armin Schmutzler, Erwin Amann, Susan Athey, Jörg Baten, Thomas Borek +8 others
  • 2016
We consider a reduced form model with acquisitions and entry. There are two investors and several small non-investing firms. One investor can acquire a small firm, the other investor decides about market entry. After that all firms play an oligopoly game. We derive conditions under which increasing market concentration arises with myopic firms. We apply the(More)
BACKGROUND Evidence demonstrates that physical exercise and psychological wellbeing are closely interlinked, particularly in older-aged women. However, research investigating how different forms of exercise influence mental health in older-aged women is underdeveloped. METHODS/DESIGN A randomized controlled trial (N = 300) will assess the relative(More)
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