On the moments of the generalized Gompertz distribution

摘要

The three-parameter generalized Gompertz distribution was introduced recently in the statistic literature as an extension of the well-known two-parameter Gompertz distribution. In addition, a closed-form expression for its moments is derived. However, we verify that this expression cannot be used for computing the moments, since the power series expansion is not convergent. We provide, therefore, a valid expression for the moments. (C) 2019 Elsevier Inc. All rights reserved.