This paper develops a dynamic population game in which agents play a simple anonymous‐exchange game of cooperating or defecting. Agents switch to the strategy with a higher expected payoff. Reformers can affect the payoff structure of the stage game to maximize the number of cooperators in the...

We analyse a duopoly setting with complementary products, in which a firm has a bias about its absolute advantage. We show that the bias can internalize parts of the negative externality that the complementarity of goods creates implying a higher producer's surplus. Moreover, we analyse...

We analyze a Cournot duopoly market with differentiated goods and the separation between ownership and control. We consider a delegation game, for which the owner of a firm hires a manager who acts as if the good has a lower degree of substitutability than it really has. This is so either...

We relax the common assumption of homogeneous beliefs in principal-agent relationships with adverse selection. In an evolutionary learning set-up, which is imitative, principals can have different beliefs about the distribution of agents' types in the population. The resulting nonlinear dynamic...

We show that under multitasking - where tasks can be substitutes or complements - a specialist worker with an uneven skill distribution can outperform a generalist with higher average skills. We use a principal-agent model to study worker efficiency and welfare. The main result is robust if a...

We relax the common assumption of homogeneous beliefs in principal-agent relationships with adverse selection. Principals are competitors in the product market and write contracts also on the base of an expected aggregate. The model is a version of a cobweb model. In an evolutionary learning...