In this thesis we explore some uses of optimal control and mass transport in economic modeling. We thus catch the opportunity to bring together some works involving both tools, sometimes mixing them. First, we briefly present the recent mean field games theory introduced by Lasry & Lions and...

Why are there areas with persistenly low levels of income or consumption? This could result from the concentration of households with a low capital endowment or from variations in households’ environment. Peru is a country with a very much fragmented topography and climate, that combines dry...

Fiscal constraints and policy changes to improve effectiveness of programs in reducing poverty has progressively led the international community to use tools for reaching the poor. Targeting antipoverty interventions is one of them. This paper aims at providing a general review of experiences of...

The purpose of this paper is to show how a better understanding of the role played by technology in the decision–making process of a business changes our conception of the nature of the firm. According to the role played by technology in decision–making, the author distinguishes five grades...

Motivated by a mean field games stylized model for the choice of technologies (with externalities and economy of scale), we consider the associated optimization problem and prove an existence result. To complement the theoretical result, we introduce a monotonic algorithm to find the mean field...

A firm chooses a price and the product information it discloses to a consumer whose tastes are privately known. We provide a necessary and sufficient condition on the match function for full disclosure to be the unique equilibrium outcome whatever the costs and prior beliefs about product and...

Improved consumer information about horizontal aspects of products of similar quality leads to better consumer matching but also to higher prices, so consumer surplus can go up or down, while profits rise. With enough quality asymmetry, though, the higher-quality (and hence larger) firm's price...