RT Generic T1 Projective system approach to the martingale characterization of the absence of arbitrage A1 Balbás, Alejandro A1 Mirás, Miguel Ángel A1 Muñoz-Bouzo, María José AB The equivalence between the absence of arbitrage and the existence of an equivalent martingale measure fails when an infinite number of trading dates is considered. By enlarging the set of states of nature and the probability measure through a projective system of topological spaces and Radon measures, we characterize the absence of arbitrage when the time set is countable. YR 2001 FD 2001-03 LK https://hdl.handle.net/10016/55 UL https://hdl.handle.net/10016/55 LA eng DS e-Archivo RD 27 jul. 2024