This paper establishes a model, where up-stream firms 'produce' drastic innovations and down-stream firms specialize in final goods production. A drastic innovation obsolesces the existing technology but down-stream firms can improve it by their incremental innovations. The economy develops in...

This paper considers a three-stage game of a differentiated oligopoly: firms first make their entry decisions, then they choose production technologies and in the third stage of the game they decide product prices. The technology choice can be understood as selecting a technology from a pool of...

Observation shows that there exist two parallel sectors - the private and state sectors in the Chinese economy and a large amount of employees of State-Owned enterprises (SOEs) "waiting at home". A model embodying these characteristics of the transitional Chinese economy is developed for...