Technical Note—Mean Drifts and the Non-Ergodicity of Markov Chains

Published Online:https://doi.org/10.1287/opre.31.4.783

An important question in stochastic modeling is whether or not a denumerable state Markov chain is ergodic. We extend a result of Kaplan giving a condition for the non-ergodicity of a chain based on its drifts. We also clarify the condition under which the mean drift in the stationary chain is zero.

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