We study the behavior of random walk in random environment (RWRE) on trees in the critical case left open in previous work. Representing the random walk by an electrical network, we assume that the ...

Download PDF More Formats on IMF eLibrary Order a Print Copy Create Citation This paper addresses a key puzzle in international finance: whether exchange rates follow a random walk or exhibit ...

This is a preview. Log in through your library . Abstract Optimal stopping rules are developed for the correlated random walk when future returns are discounted by a constant factor per unit time. The ...