Le commerce électronique connaît un nouveau mode de développement à travers la forte croissance du smartphone parmi les consommateurs. Un certain nombre de modèles d’adoption ont été proposés dont beaucoup reposent sur le téléphone mobile en général. Cet article vise, dans un...

In the case of digital piracy should rights be publicly or privately enforced? The emergence of large-scale anti-piracy laws and the existence of non-monitored illegal channels raise important issues for the design of digital anti-piracy policies. In this paper, we study the impact of these two...

We study how in a city either opposite social norms remain or a particular code of behavior spreads and ultimately prevails. We develop a multicommunity model with overlapping generations. When young, an individual chooses the level of educational effort. The crucial feature is that her decision...

To distribute software, commercial vendors of proprietary software have the opportunity to use some dual licensing (DL) strategy i.e. to provide their software under two different licensing terms (proprietary and open source). We investigate the relevance and impacts of this distribution...

For many applications, open source software (OSS) can offer a high-quality alternative to proprietary software (e.g. Linux, Apache, Android,...). But even if OSS is usually free of charge, its installation and use require some skills. Should the government intervene to promote the diffusion of...

We consider a sequential screening problem where, in the contracting stage, the agent has private information on both the expected value and the spread of the unit cost of production. As the principal’s marginal surplus function becomes less concave / more convex in consumption units,...

In this paper, we estimate a residential water demand function for the Reunion island, a French overseas territory which experiences, despite its tropical climate, a lot of stress on this resource. We develop specifications of linear and non linear expenditure systems, taking into account the...

Abstract: In this paper we explore the problem of Nash implementation providing new sufficient conditions called I-monotonicity and I-weak no-veto power. Firstly, we show that these conditions together with unanimity are sufficient for the implementation of social choice correspondences (SCCs)...

A government delegates a build-operate-transfer project to a private firm. At the contracting stage, the operating cost is unknown. The firm can increase the likelihood of facing a low cost (the good state), rather than a high cost (the bad state), by exerting costly effort when building the...

We investigate carbon emission trends among EU Member States by testing the assumption of beta-type convergence for per capita CO2 emissions, conditional upon per capita output and energy use. We find that the emission growth/income relation is strictly negative, indicating that EU-15 countries...