Calculus of Variations and Geometric Measure Theory

M. Morandotti - G. Orlando

Replicator dynamics as the large population limit of a discrete Moran process in the weak selection regime: A proof via Eulerian specification

created by orlando on 28 Jan 2025

[BibTeX]

preprint

Inserted: 28 jan 2025

Year: 2025

ArXiv: 2501.12688 PDF

Abstract:

We study the large population limit of a multi-strategy discrete-time Moran process in the weak selection regime. We show that the replicator dynamics is interpreted as the large-population limit of the Moran process. This result is obtained by interpreting the discrete process in its Eulerian specification, proving a compactness result in the Wasserstein space of probability measures for the law of the proportions of strategies, and passing to the limit in the continuity equation that describes the evolution of the proportions.