In this paper, we extend the concept of stability to vertical collusive agreements, involving downstream and upstream firms, using a setup of successive Cournot oligopolies. We show that a stable vertical agreement always exists: the unanimous vertical agreement involving all downstream and...

We analyse the effects of migration on the production of public goods, income taxes, and on the welfare of residents in the sending and in the receiving country. Migration is based on income differences between countries. Different alternative scenarios are considered. In the first, we assume...

This paper examines how and why people migrate between two re- gions with asymmetric size. The agglomeration force comes from the scale economies in the provision of local public goods, whereas the disper- sion force comes from congestion in consumption of public goods. Public goods considered...

This paper investigates the optimal price sequence of a two period tentative to sell an indivisible good, with take-it-or-leave-it offers, in which the seller faces ambiguity about the buyers' willingness to pay. If the first round fails, the seller updates its beliefs on the state of the market...

We study the impact of an offshore financial center on the economy in the presence or absence of bank secrecy in a two-country setting with heterogeneous investors who choose where to deposit their savings. Rather than focussing on tax competition, we acknowledge that countries use two...

We study how the level of trade costs and the intensity of competition interact to explain the nature and intensity of trade within a given industry and the location of firms across countries. As trade costs decrease from very high to very low values, the global economy moves from autarky to...

This paper explains why and how a small country can be an offshore financial center (OFC). We build a model involving a small and a large country competing for portfolio investments. They use two instruments, taxation and institutional infrastructure. We identify the conditions for an OFC to be...

Armchair evidence shows that many industries are made of a few big commercial or manufacturing firms, which are able to affect the market outcome, and of a myriad of small family-run businesses with very few employees, each of which has a negligible impact on the market. Examples can be found in...

In this paper we study how the trade costs and the intensity of competition can explain the existence of bilateral trade, unilateral trade and no trade within an industry. We show as trade costs decrease from very high to very low values, the global economy moves from autarky to a regime of...

Our aim is to explain how a small country can be viable as an international banking center (IBC). We build a model in which mobile investors choose between two banking centers located respectively in a small country and in a large country. These countries compete in two instruments, taxation and...