We study the optimal dynamics of an AK economy where population is uniformly distributed along the unit circle. Locations only differ in initial capital endowments. Despite constant returns to capital, we prove that transition dynamics will set in. In particular, we prove that the...

In this paper we use a new analytical approach to the Lucas-Uzawa model (Boucekkine and Ruiz-Tamarit, 2007) to extend the existinc results on the dynamics and notably on the imbalance effects arising in the model. The approach does not only allow to extend the traditional analysis to any initial...

We introduce a class of games with complementarities that has the quasisupermodular games, hence the supermodular games, as a special case. Our games retain the main property of quasisupermodular games : the Nash set is a nonemply complete lattice. We use monotonicity properties on the best...

Several R&D-based models of endogenous economic growth are investigated under the Solow-like assumption of fixed allocation of resources across activities. We identify model parameters that lead to explosive dynamics and analyse various economic techniques to avoid it. The techniques include...

L'article étudie les origines de la relation entre prix et quantité produite. Les travaux de trois auteurs allemands (Herrnann, Rau, et Mangoldt) montrent que cette idée résulte de la réinterprétation, à l'aide d'outils algébriques et géométriques, de thèses initialement formulées...

Cet article étudie les effets sur l'épargne d'une incertitude sur le taux de croissance de la population dans un modèle à générations imbriquées. Nous montrons que les hypothèses nécessaires à la formation d'une épargne individuelle de précaution ne suffisent pas dans un cadre...

This paper analyses price competition under product differentiation when goods are defined in a two dimensional characteristic space, and consumers do not know which firm sells which quality. Equilibrium prices consist of two additive terms, which balance consumers’ relative valuation of...

Nous étudions dans un modèle à générations imbriquées le rôle primordial du gouvernement pour la pérennité des systèmes de retraite par répartition. Nous montrons que les systèmes de retraite à fort taux de cotisation, comme ceux que l'on observe en Europe, ne sont viables à long...

We present an intertemporal model of consumption and savings incorporating liquidity constraints and non-separable preferences. We solve the problem numerically and characterize the optimal consumption behavior. We explore the traditional puzzles highlighted in the empirical literature as excess...

This paper considers a multi-sectoral endogenous growth model, that reproduces the essental aspects of an ‘ICT-based economy’, in which a central role is played by human capital accumulation. Indeed, households also invest in human capital through schooling, and this turns out to be the...