Axiomatizations of a positional power score and measure for hierarchies

The extant literature on positional power in hierarchies is mainly restricted to the analysis of power in terms of the authority structure. This is based upon the bare positions of actors and ignores the existence of decision-making mechanisms. The few studies, which also take into account decision-making mechanisms, are ‘membership-based’. In an earlier paper we demonstrated that such an approach is, in general, inappropriate. As a solution we suggested an ‘action-based’ approach and developed a power score and measure ascribing positional power to actors in hierarchies. In this paper we axiomatize this power score and measure and illustrate their applicability.     

Capital punishment preferences for special offender populations

The present study utilized the factorial survey design, a quasi-experimental approach, in an attempt to measure respondent's capital punishment preferences regarding juvenile, the mentally incompetent, and the mentally retarded offenders. The findings indicated that respondents were significantly less likely to prefer capital punishment over alternative sentencing options. Moreover, the influence aggravating and mitigating circumstances such as the offender's age, mental capacity, prior record, and death-eligibility were found to strongly affect the public's death penalty preferences. The substantive, methodological, and public policy implications of this study are discussed.     

The resource curse revisited: governance and natural resources

The paper analyzes the impact of natural resource abundance on selected governance indicators. We use a panel data set with observations on a large number of countries over an extended period of time and employ an instrumental variable technique to account for endogeneity. The results show that exports of natural resources have, above all, led to an increase in corruption. This result is robust to both different model specifications and an alternative indicator for natural resource abundance. For other governance indicators, such as law and order and bureaucratic quality, we either find no results or results that lack robustness.     

Third Molar Development: Evaluation of Nine Tooth Development Registration Techniques for Age Estimations

Multiple third molar development registration techniques exist. Therefore the aim of this study was to detect which third molar development registration technique was most promising to use as a tool for subadult age estimation. On a collection of 1199 panoramic radiographs the development of all present third molars was registered following nine different registration techniques [Gleiser, Hunt (GH); Haavikko (HV); Demirjian (DM); Raungpaka (RA); Gustafson, Koch (GK); Harris, Nortje (HN); Kullman (KU); Moorrees (MO); Cameriere (CA)]. Regression models with age as response and the third molar registration as predictor were developed for each registration technique separately. The MO technique disclosed highest R² (F 51%, M 45%) and lowest root mean squared error (F 3.42 years; M 3.67 years) values, but differences with other techniques were small in magnitude. The amount of stages utilized in the explored staging techniques slightly influenced the age predictions.