Evolutionary model of an anonymous consumer durable market

► A durable goods market can grow through a spreading and an adaptation process. ► They correspond to Bass/Gompertz diffusion, the latter is an evolutionary process. ► A price-dependent product fitness determines the sales via replicator dynamics. ► The fitness increase (price decrease) in time leads to a Gompertz diffusion. ► Also size-, price-, growth-rate distributions are derived for durable goods.