The taking into account of a period of break (thick break) makes it possible to correctly analyze the time series of the euro-dollar exchange rate. By retaining the posterior period with the Louvre agreements, but by eliminating the first years from existence of the euro, and until today, one...

We develop a theoretical model to compare the two major foreign aid modalities: project aid and budget support. These two modalities have a different impact on the production of ‘developmental goods’. Firstly, conditionality can be associated with budget support, but only a subset of the...

We estimate a finite mixture dynamic programming model of schooling decisions in which the log wage regression function is set in a random coefficient framework. We also analyze the determinants of 3 counterfactual experiments (a college attendance subsidy, a high school graduation subsidy and...

This paper considers a model of two interconnected networks with different qualities. There are call externalities in the sense that consumers value calls they send and receive. Networks compete in two part tariffs. We show that call externalities create private incentives for each competitor to...

We consider a large population of agents choosing either to engage in a criminal activity or working. Individuals feel varying degrees of selfreproach if they commit criminal acts. In addition, they are concerned with their social status in society, based on others’ perceptions of their...

In this paper, we study the impact of a merger on collusion depending on the endowment of capital asset among firms. We show that the merger makes the collusion easier to sustain when asymmetric capital stock combines with less efficient insiders because of more symmetric conditions and closer...

Patent pools are cooperative agreements between several patent owners to bundle the sale of their respective licenses. In this paper we analyze their consequences on the speed of the innovation process. We adopt an ex ante perspective and study the impact of possible pool formation on the...

The ‘ratchet effect’ refers to a situation where a principal uses private information that is revealed by an agent’s early actions to the agent’s later disadvantage, in a context where binding multi-period contracts are not enforceable. In a simple, context-rich environment, we...

We study and compare two frameworks: a model of influence, and command games. In the influence model, in which players are to make a certain acceptance/rejection decision, due to influence of other players, the decision of a player may be different from his inclination. We study a relation...

In the paper, we introduce and study generalized weighted influence indices of a coalition on a player, where players have an ordered set of possible actions. Each player has an inclination to choose one of the actions. Due to influence of a coalition of other players, a final decision of the...