The authors develop a framework for studying trade in horizontally and vertically differentiated products. In their model, consumers with heterogeneous incomes and tastes purchase a homogeneous good and make a discrete choice of quality and variety of a differentiated product. The distribution...

Key factors driving self-sustained, long-term economic growth are innovation and technology absorption; these factors are generated from within the economic system, responding to economic incentives. This conceptual framework molds analysis: on the one hand, the view of the centrality of...