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

This paper investigates the impacts of progressive trade openness, technological externalities,and heterogeneity of individuals on the formation of entrepreneurship in a two-countryoccupation choice model. We show that trade opening gives rise to a non-monotonic processof international...

Firms protected by antidumping measures do not unequivocally benefit from them. Antidumpingprotection benefits non-exporters active on the protected market by raising their domestic sales, buthurts exporters of similar products as the protected ones. Export sales of protected firms fall byalmost...

We investigate the impact of changes in international trade and domestic transport costs on the internalgeography of a domestic economy linked to the rest of the World through a hub. We address that issue bydeveloping two three regions model, namely a version of the Footlose Entrepreneur and a...

We study a two-stage R&D project with an abandonment option. Two types of uncertaintyinfluence the decision to start R&D. Demand uncertainty is modelled as a lottery between aproportional increase and decrease in demand. Technical uncertainty is modelled as a lotterybetween a decrease and...

The weighted value was introduced by Shapley in 1953 as an asymmetric version of his value. Since thenseveral axiomatizations have been proposed including one by Shapley in 1981 specifically addressed tocost allocation, a context in which weights appear naturally. It was at the occasion of a...

The imposition of universal coverage and uniform pricing constraints, as part of the universalservice obligations, makes the universal service provider less aggressive in the price game when itcompetes with a firm that does not cover the whole set of markets (Valletti et al., 2002). In...

In this paper we give an example in which the price of tradeable emission permits increasesdespite firms' adoption of a less polluting technology. This is in contrast with Montero (2002) andParry (1998), among others. If two Counot players switch to a cleaner technology, the price forpermits may...

In this paper we carry out a preliminary exploration of a time scales’ conjecture, whichpostulates that “reasonable” notions of sustainability must include a suitable synchronisationof time scales of both the processes of human development and those of the naturalenvironment. We perform...

In this paper we study the short term price behavior of December 2008 future prices for EU emissionallowances. We model returns and volatility dynamics of this price showing that a standard ARMA-GARCHframework is not adequate and that the gaussianity assumption is rejected due to the occurrence...