Formal response to 'Erratum on the MBG/NBD Model'

摘要

We carefully went over the note titled as "Erratum on the MBG/ NBD Model" and derived the formulas again. As the authors suggest, there is a small error in our E(Y(t)) formula. We have done the related calculations again considering the new formula. Our results are not affected by this change significantly. The new E(Y(t)) values are presented in Fig. 1.