A general model of aggregation of binary evaluations over interrelated issues, introduced by Wilson and further studied by Rubinstein and Fishburn and by the authors, is extended here to allow for abstentions on some of the issues. It is shown that the same structural conditions on the set of feasible evaluations that lead to dictatorship in the model without abstentions, lead to oligarchy in t...

abstract in the past twenty-five years, the russian government has been faced with widespread corruption and despite many efforts it hasn’t been able to control that. according to transparency international report in 2013, this country was the 127th among 177 countries. this essay tries to analyze the role of administrative oligarchy and continuity of corruption in russia. the main question of ...

Oligarchy portrait occurs in the process of coal mining East Kalimantan. Many power-holding elites are involved collaborating to become a resource chain The Sexi Killer film by WatchDoc Documentary provides clear picture how elite was becoming players Coal does not necessarily bring prosperity surrounding community but instead brings about various environmental disasters. Several names ruling w...

We present a systematic examination of the changes in semi-major axis caused by the mutual interactions of a group of massive bodies orbiting a central star in the presence of eccentricity dissipation. For parameters relevant to the oligarchic stage of planet formation, dynamical friction keeps the typical eccentricities small and prevents orbit crossing. Interactions at impact parameters great...

We augment the mechanism used in Nash implementation with a political process that collects the opinions of a subset of individuals with a fixed probability distribution. The outcome is a function of only the collected opinions. We show that the necessary – and sometimes sufficient – condition for implementation by a specific political process can be either weaker or stronger than Maskin monoto...

Recent reports show that Olig genes, which encode the basic helix-loop-helix Olig transcription factors, are essential for development of oligodendrocytes. Surprisingly, Olig function is also required for formation of somatic motor neurons. These findings alter our views of how the oligodendrocyte lineage is generated and raise further questions about the underlying developmental relationships ...