Necessary and Sufficient Conditions for Existence of a Unique Solution to Gamma Moment Closure for the Stochastic Ricker Equation

Haiyan Wang, Melinda Wang

This paper investigates the stochastic Ricker difference equation $X_{n+1}=X_n\exp (r(1-X_n)){\epsilon }_n$, where $X_n$ is a random variable representing the population size an…