context of the logistic diffusion growth model. The latter is augmented to allow for the impact of exogenous effects upon both … the diffusion rate and boundary limit. We show how the hypothesis of augmented logistic diffusion can be falsified using …

methods which are applied to the scaled residuals generated by estimated logistic diffusion models. We illustrate the use of … presence of time irreversibility, structural change and fundamental uncertainty) in economic processes that follow logistic … diffusion growth paths in historical time. The approach we adopted is built upon recent developments in `moving window' spectral …