MARKET PENETRATION BY ENTRY-EXIT DYNAMICS

A generic characterization of the dynamics of market penetration by te chnological artifacts is here formulated on the basis of entry rate an d exit rate considerations. It is shown that low-order reductions lead to the biologically based logistic dynamic, which - by empirical fit - has been found to be in very good agreement with numerous specific c ases. In addition to the derivational justification of the logistic fo r artifact market penetration, we find that but a small number of para meters are involved in these autonomous characterizations suggesting t herefore that market penetration may well be reduced to a similarly sm all number of dominant operative processes. Some nonautonomous extensi ons are also discussed.