Rokers, T.

parameter model result diffusion aggregation parameter estimates erasmus university rotterdam estimate q 0/d change inflection point value forecasting rotterdam use simulation experiments error innovation parameter p bass model point bass diffusion model imitation parameter q p 0/d imitation equation innovation 467–471 product diffusion process process innovation parameter q parameter simulation column simulation results section error term inflection diffusion models additive error term observation macro-level diffusion models m ð2þ note product growth model van den bulte putsi dt m ð1þ institute netherland 0.005 0.01 erasmu purchase marielle nona number aggregation 1. introduction 8 july 2002 additive error terms netherlands b department theory experiment economic continuous-time diffusion process university school practice +31-10-4089162. e-mail address 0.0005 product diffusion models values blur p parameters m ð3þ section 2 squares estimation data-generating process front matter peak sales regression variant parameter q parameter p tijs rokersa imitation parameter