We give a new way to price American options, using Samuelson´s formula. We first obtain the option price corresponding to a European option at time t, weighting it by the probability that the underlying asset takes the value S at time t. This factor is given by the solution of the Fokker-Planck...

This paper, first, reviews briefly the literature on the term structure of interest rates, citing some of the most important studies done on the topic for the Mexican case in the last years. In addition, the development of the government debt market is described. Second, evidence against the...