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I am a **third year PhD Student in Economics** at **Columbia University**, New York.
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with Guillaume Carlier and Jean-Michel Lasry.
Published:
We propose a (toy) MFG model for the evolution of residents and firms densities, coupled both by labour market equilibrium conditions at each time and competition for land use (congestion). This results in a system of two Hamilton-Jacobi-Bellman and two Fokker-Planck equations with a new form of coupling related to optimal transport. This MFG has a convex potential which enables us to find weak so- lutions by a variational approach. In the case of quadratic Hamil- tonians, the problem can be reformulated in Lagrangian terms and solved numerically by an IPFP/Sinkhorn-like scheme as in [2]. We present numerical results based on this approach, these simulations exhibit different behaviours with either residential or business centers depending on the initial conditions and parameters.
Main instructor, Columbia University, 2021