We build a dynamic duopoly model that accounts for the empirical observation of monopoly persistence in the long run. More specifically, we analyze the conditions under which it is optimal for the market leader in an initially duopoly setup to undertake pre-emptive R&D investment ("strategic preda- tion") that eventually leads to the exit of the follower firm. The follower is assumed to benefit from the innovative activities of the leader through R&D spillovers. The novel feature of our approach is that we introduce an explicit dynamic model and contrast it with its static counterpart. Contrary to the predictions of the static model, strategic predation that leads to the persis- tence of monopoly is in general the optimal strategy to pursue in a dynamic framework when spillovers are not large.
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Paper provided by The Center for Economic Research and Graduate Education - Economic Institute, Prague in its series CERGE-EI Working Papers with number
wp316.
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