We consider the class of differential games with transition dynamics and constraints that are homogeneous of degree one. We show that if the integrand of the objective function is homogeneous of degree , then best replies to linear homogeneous Markov strategies are linear homogeneous, and the...

We propose an overlapping generations economy where households care about relative consumption, the difference between their consumption and the consumption of their reference group. An individual's consumption is driven by the comparison of his lifetime income and the lifetime income of his...

We investigate investment behavior when there is asymmetry of information between owners (the principal) and managers (the agent). The model accepts the standard cost-of-adjustment model as a particular case and is directly compared with it. For all types, information asymmetry distorts the...

We show that, in a model with substitutability between capital and resources, the path of sustainable development may be non-smooth, and may exhibit the overshooting property: starting from low levels of capital and resources, the economy may accumulate capital beyond its steady-state level,...

This paper presents a simple model of resource extraction where preferences are household's preferences depend on relative consumption levels. We identify two dimensions along which consumption externalities distort the efficient extraction of resources: (i) the static trade-off between...

We show that the growth of the service sector facilitates outsourcing, or fragmentation of production. Services link production blocks, and allows the breaking up of integrated production. The cost of aggregate service decreases as the number of specialized services increases. A country with a...

This paper explores several aspects of the vertical relationship between an upstream firm and a number of downstream firms that are Cournot rivals relying on the inputs provided by the upstream firm. We address the following questions: (i) if the upstream firm can charge different prices to...

Oil companies often announce revised estimates of their reserves. This indicates that stock uncertainty is a prevalent feature of natural resource industries. In this paper we consider the multi-deposit case where resource extraction produces information about the size of reserves. We show that...

We derive emission tax rules that take into account (i) the rent-shifting argument, (ii) the need to mitigate transboundary pollution, (iii) correction for restrictive oligopoly output, and (iv) correction for domestic coordination of outputs. We show that trade liberalization does not...

We propose a simple model of a partially integrated industry which explicitly takes into account persistent production cost differences across upstream firms, such as one might observe in natural resource industries. The model allows us to highlight the respective roles of strategic...