Markov perfect equilibrium in multi-period games between sponsor and bureau

We formulate a simple model of the interaction between a sponsor and a bureau. The sponsor sets the bureau's budget while the bureau decides on how much to spend on slack. We compute numerically Markov perfect equilibria of multi-period games where the agents move alternately and apply Markov strategies. Both agents are worse off compared to the one-period game with simultaneous moves. As the discount factors increase, the equilibrium outcome becomes less cooperative in nature.     

Proficiency test for the analysis of hair for drugs of abuse,organized by the Society of Hair Testing

Eighteen laboratories interested in the analysis of human hair for drugs of abuse participated in a proficiency test (PT) organized by the Society of Hair Testing (SoHT) in 2001.Samples sent to the participants included one drug-free hair sample and two samples from drug users, sent in the form of short segments previously checked for homogeneity by three reference laboratories. Participants were requested to analyze the samples following the standard procedure used routinely in their laboratories.The compounds present in the samples included opiates, cocaine and metabolite, cannabinoids and amphetamines. All the laboratories analyzed opiates, cocaine and benzoylecgonine (BE); only 10 analyzed amphetamines, and 9 cannabinoids. Various methods were used to extract drugs from the hair-enzyme treatment, acidic, basic and methanol extractions. All the laboratories employed GC-MS, with the exception of two which used GC-MS/MS and LC-MS/MS, respectively. Six laboratories performed initial screening tests by RIA, ELISA or EMIT.Results show that the laboratories performed well qualitatively, since they successfully identified all the analytes that they tested, with the exception of eight false results. However, the scatter of quantitative results was high.     

The dialogue of civilizations: Philosophical basis,current state and prospects

Since the end of the Cold War, the dialogue of civilizations has become one of the keywords in the global discourse on issues of world order and peace. Traditional enemy stereotypes along the ideological lines of the earlier East-West conflict have disappeared while new confrontational schemes are becoming visible under the slogan of a supposed clash of civilizations. The nature of dialogue consists in the ability to see oneself from the perspective of the other. The human being's consciousness – self-reflection – is only possible if the subject is aware of the other, i.e. of that which is not the self, that from which it can distinguish itself. Semantically, this is the essence of the Latin word definitio. Applied to the level of civilization, this entails that full understanding and development of any given civilization can only be achieved if the respective civilizational community not only takes note of, but positively interacts with other civilizations on the basis of (normative) equality. Thus, the dialogue of civilizations is the fundamental requirement for defining each civilization's identity and for reaching its maturity and universal relevance. The common values underlying all civilizations – making possible genuine civilizational progress – are those of tolerance and mutual respect. Acceptance and realization of those values is the necessary, though not the only condition for the adequate self-comprehension and identity of a civilization. In this regard, an analogy can be drawn between (a) the normative equality of civilizations on the socio-cultural level and (b) the concept of the sovereign equality of states on the political level. One of the most serious threats to international peace and stability, i.e. to the realization of the basic goals of the United Nations Organization, is the persistence – or even creation in certain cases – of enemy stereotypes along civilizational lines. Over the centuries, the demonization or vilification of another civilization (particularly in regard to religious identity) has often been a prelude to armed conflict and has served to create a pretext for – or to legitimize – the violent pursuit of mainly economic interests. At the beginning of the third millennium, the world should not repeat the mistakes of an earlier era. No civilization should try to establish hegemony over the other. The claim to civilizational superiority has too often been a recipe for confrontation, even armed conflict.     

Consensual Coalitions? Coalition Formation in Norwegian Municipalities

While widely applied to political coalitions in national assemblies and cabinets, theories of coalition formation have seldom been tested at the local level of government. This article presents a model of coalition formation in connection with mayoral elections in Norwegian local councils and tests it on the basis of the first systematic collection of data on the election of mayors from a large number of municipalities. It finds small significant effects on the probability that oversized coalitions will be formed. Contrary to "common" knowledge, the size of a municipality has a positive influence on the conflictual climate, and thus on the size of the coalitions formed, which implies that the probability that an oversized coalition will form is higher in a large than in a small municipality. It also finds that the possibility that an oversized coalition will form increases if one party controls a majority of the councilors on its own, and if the majority is non-socialistically controlled. The assumption of a strong norm for reaching consensus-based decisions, reinforced by the design of the local political institutions, is supported.     

Transcultural comparisons of self-image in German and United States adolescents

Based on the Offer Selfimage Questionnaire (OSIQ), the selfimage of German and United States adolescents was compared. The German study was based on OSIQ protocols from 365 adolescents in West Berlin while the American sample comprised adolescents drawn from seven cities in the United States. With respect to three scales, United States adolescents report better adjustment than do the German adolescents. These scales were Mastery of the External World, Vocational and Educational Goals, and Superior Adjustment. In general, these two Western societies share more similarities than differences in the selfimages of their adolescents.Received M.D. and Ph.D in Psychology from the University of Hamburg, Germany. Research interests are high-risk studies, child psychiatric epidemiology, and adolescence.Received M.D. from the University of Chicago. Major interests are concepts of mental health and the developmental psychology of adolescence.Received J. D. from the University of Chicago School of Law; received Ph.D. in Human Development from the University of Chicago. Research interests are adolescence and delinquency.Received Ph.D. in Psychology from the University of Chicago. Major interests are psychotherapy research and adolescence.