2015/26 LEM Working Paper Series

Drift criteria for persistence of discrete stochastic processes on the line with examples of application

Giulio Bottazzi and Pietro Dindo
Discrete-time stochastic processes; asymptotic behavior; persistence and transience
  JEL Classifications

We provide sufficient conditions for the persistence or transience of stochastic processes on the real line based on the behavior of the first and second moment of their conditional increments at the boundaries. Our findings extend previous results in the literature (Lamperti, 1960) to the large class of discrete-time processes with bounded increments. We present some examples of application in the domain of economics.
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