We build a dynamic oligopoly model with endogenous entry in which a particular firm (leader) invests in an innovation process, facing the subsequent entry of other firms (followers). We identify conditions that make it optimal for the leader in the initial oligopoly situation to undertake...

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 Ramp;D investment...

The economic analyses of software piracy typically rely on the simplifying assumption that the product is offered by a single producer. We argue that a realistic description of the software market and associated economic aspects of software piracy might be also captured by studying competition...