Attempts to identify key sectors in an economy with input output models have been a source of considerable debate. in this paper; several old and new approaches to the problem are evaluated with reference to the Brazilian economy using the input-output models for 1959, 1970 and 1975. Two...

Social fragmentation has been identified as a potential cause for the under-provision of public goods in developing nations, as well as in urban communities in developed countries such as the U.S. We study the effect of social fragmentation on public good provision using laboratory experiments....

We study the merger paradox, a relative of Harsanyi's bargaining paradox, in an experiment. We examine bilateral mergers in experimental Cournot markets with initially three or four firms. Standard Cournot-Nash equilibrium predicts total outputs well. However, merged firms produce significantly...