To Earnestly Protect the Exclusive Right to Use a Registered Trademark and to Promote the Economic Development

State Administration for Industry and Commerce (SAIC) decided to launch the campaign to better protect the exclusive right to use a registered trademark and released "Action Plan for the Campaign of Protection of the Exclusive Right to Use a Registered Trademark".     

Market penetration by entry-exit dynamics

A generic characterization of the dynamics of market penetration by technological artifacts is here formulated on the basis of entry rate and 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 cases. In addition to the derivational justification of the logistic for artifact market penetration, we find that but a small number of parameters are involved in these autonomous characterizations suggesting therefore that market penetration may well be reduced to a similarly small number of dominant operative processes. Some nonautonomous extensions are also discussed.