Why do Europeans Migrate to Berlin? Social‐Structural Differences for Italian,British, French and Polish Nationals in the Period between 1980 and 2002*

One of the main issues in migration research concerns the reasons migrants have for crossing borders. It is assumed in the research that migration is primarily economically driven. In recent studies, however, the importance of social and cultural reasons for migration has become apparent. In this context, the present contribution discusses the reasons for the migration of Europeans from Italy, France, the United Kingdom, and Poland who moved to Germany (Berlin) between 1980 and 2002. In this case, it can be shown empirically that purely economic reasons play a lesser role in migration than is generally assumed, whereas social and cultural motives actually have a much greater influence. Primary data gathered in Berlin early in 2002 form the empirical foundation of the study. Multinomial logistic regressions are used to discuss the function of social‐structural differences (e.g., nationality, age, gender, education, social origin) in the formation of individual reasons for migration.     

Accounting for the contribution of vitamin B to Canada's WWII effort

Canada began to fortify its flour and bread with vitamin B when it entered the Second World War. The decision was informed by the biology of vitamin B and therefore I suggest that the complexity of this political maneuver can best be understood by considering the specificity of the biochemistry of vitamin B. In this paper I will show that the specific biology of vitamin B allowed the Canadian government the possibility of a healthier population under wartime conditions but also allowed the government a variety of means by which to develop and organize food processing practices to this end.     

On the equilibrium of voting games with abstention and several levels of approval

We study the core of “(j, k) simple games”, where voters choose one level of approval from among j possible levels, partitioning the society into j coalitions, and each possible partition facing k levels of approval in the output (Freixas and Zwicker in Soc Choice Welf 21:399–431, 2003). We consider the case of (j, 2) simple games, including voting games in which each voter may cast a “yes” or “no” vote, or abstain (j = 3). A necessary and sufficient condition for the non-emptiness of the core of such games is provided, with an important application to weighted symmetric (j, 2) simple games. These results generalize the literature, and provide a characterization of constitutions under which a society would allow a given number of candidates to compete for leadership without running the risk of political instability. We apply these results to well-known voting systems and social choice institutions including the relative majority rule, the two-thirds relative majority rule, the United States Senate, and the United Nations Security Council.     

Principal‐agent relationships on the stewardship‐agency axis

This article provides an overview of the literature on nonprofit principal‐agent relationships. It depicts the nature of agency theory and stewardship theory, analyzes the origin of their struggle within the nonprofit structure, and marks directions for a conciliatory approach. We open with an introduction to agency theory and discuss the two main components of its mathematical branch. We thereby contrast it with stewardship theory and elaborate on the arguments that can affect the position of nonprofit principal‐agent relationships on the stewardship‐agency axis. Analysis of the existing literature points to a lack of consensus as to which theory should be applied. We argue that the division of nonprofit principalagent relationships into board‐manager and manageremployee interactions may help to clarify the balance between agency theory and stewardship theory and may lead to the establishment of a strongly founded theory on nonprofit principal‐agent relationships. We close with a discussion of how this article may prove valuable to nonprofit policymakers and other empirical researchers.     

Risks of Paralytic Disease Due to Wild or Vaccine-Derived Poliovirus After Eradication

After the global eradication of wild polioviruses, the risk of paralytic poliomyelitis from polioviruses will still exist and require active management. Possible reintroductions of poliovirus that can spread rapidly in unprotected populations present challenges to policymakers. For example, at least one outbreak will likely occur due to circulation of a neurovirulent vaccine-derived poliovirus after discontinuation of oral poliovirus vaccine and also could possibly result from the escape of poliovirus from a laboratory or vaccine production facility or from an intentional act. In addition, continued vaccination with oral poliovirus vaccines would result in the continued occurrence of vaccine-associated paralytic poliomyelitis. The likelihood and impacts of reintroductions in the form of poliomyelitis outbreaks depend on the policy decisions and on the size and characteristics of the vulnerable population, which change over time. A plan for managing these risks must begin with an attempt to characterize and quantify them as a function of time. This article attempts to comprehensively characterize the risks, synthesize the existing data available for modeling them, and present quantitative risk estimates that can provide a starting point for informing policy decisions.     

Are clinician's ever biased in their judgments of the capacity of older adult's to make medical decisions?

Capacity assessment is a growing area of practice in geriatrics. In this pilot study we illustrate the potential relationship between clinician variables and capacity ratings. Twelve older adults with mild dementia or schizophrenia were rated by six clinicians from diverse disciplinary backgrounds. Capacity ratings were associated with clinician values regarding patient involvement in medical decisions, clinician-patient mismatches on such values, and emotional reactions to patients. Expanding our understanding of the impact of clinician variables on capacity ratings may enhance the reliability and validity of capacity assessments and help to promote autonomy when appropriate.