This article examines endogenous cartel formation in the presence of a competition authority. Competition policy is shown to make the most inclusive stable cartels less inclusive. In particular, small firms that might have been cartel members in the absence of a competition authority are no longer members. Regarding the least inclusive stable cartels, competition policy can either decrease or i...

There has been considerable experimental and theoretical interest in semi-inclusive hadron production in deep inelastic scattering (SIDIS) processes. For example, by studying the polarized and unpolarized SIDIS, one will be able to identify the sea quark distribution and polarization in nucleon, and the experimental results from the HERMES collaboration have revealed nontrivial sea structure in...

Ghana is to achieve the goal of becoming a middle income country by 2015. Despite its impressive progress in economic growth and poverty reduction, Ghana—like many other African countries—has had rather limited success in increasing smallholder agricultural production by enhancing productivity and competitiveness. Why? Like other countries, Ghana has to meet three challenges in selecting and im...

The article argues for a shift of perspective in identity management (IDM) research and development. Accessibility and usability issues affect identity management to such an extent that they demand a reframing and reformulation of basic designs and requirements of modern identity management systems. The rationale for the traditional design of identity management systems and mechanisms has been ...

Until recently, inclusive fitness has been widely accepted as a general method to explain the evolution of social behavior. Affirming and expanding earlier criticism, we demonstrate that inclusive fitness is instead a limited concept, which exists only for a small subset of evolutionary processes. Inclusive fitness assumes that personal fitness is the sum of additive components caused by indivi...

Computer technology has only recently become advanced enough to solve the problems it creates with its own interface. One solution, virtual reality (VR), immediately raises fundamental issues in both semantics and epistemology. Inclusive symbolic environments effectively redefine the relationship between experience and representation, rendering the syntax-semantics barrier transparent. Reading,...

Trade-offs between individual fitness and the collective performance of crop and below-ground symbiont communities are common in agriculture. Plant competitiveness for light and soil resources is key to individual fitness, but higher investments in stems and roots by a plant community to compete for those resources ultimately reduce crop yields. Similarly, rhizobia and mycorrhizal fungi may inc...