Suchergebnisse

Joseph Farrell and Carl Shapiro have proposed a measure of Upward Pricing Pressure (UPP) as offering a presumption of anticompetitive unilateral effects in a merger. We explain that the underlying framework (which relies on Bertrand competition) is in fact a special case of a more general merger simulation methodology. We discuss the strengths and weaknesses of the framework as a policy tool.

Abstract The multi-ethnic and multilingual complexes of the Upper Rio Negro and the Upper Xingu share common aspects that frequently emerge in ethnographies, including notions of descent, hierarchical social organization and ritual activities, as well as a preference for forms of exogamy and the unequal distribution of productive and ritual specialties and esoteric knowledge. In this article we investigate how the people of both regions conceive of their humanity and that of their neighbours as variations on a shared form, since in both regions ritual processes for negotiating positions and prerogatives seems to take the place of the latent state of warfare typical of the social life of other Amazonian peoples. In this article we will synthesize, for each region, the spatio-temporal processes that underscore the eminently variable constitution of collectivities, seeking, in conclusion, to isolate those elements that the two regions have in common.