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Economic theory suggests that it is optimal to reward teachers depending on the relative performance of their students. We develop an econometric approach, based on stochastic frontier analysis, to construct a fair ranking that accounts for the socio-economic background of students and schools and the imprecision inherent in achievement data. Using German PIRLS (IGLU) data, we exploit the hierarchical structure of the data to estimate the efficiency of each teacher. A parsimonious set of control variables suffices to get a “fair” estimate of unobserved teacher quality. A Hausman–Taylor type estimator is the preferred estimator because teacher efficiency and some exogenous variables may be correlated. 相似文献
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The power motive, defined as the desire to impact the behavior and emotions of another person, has long been controversial. On one side, the exercise of power has been put forth as a fundamental human need greater in strength than the need to survive. On the other, it has been vilified for its potentially devastating consequences. We argue the latter view is distorted, and, by relying too heavily on it, we have come to misunderstand the essential nature of power and its use by leaders charged with driving performance. It is not the power motive that leads to corruption and tyranny, but rather how the power motive is channeled into behavior by other personality factors. Consequently, those charged with leader selection should place greater emphasis on how individuals with strong power motives differ in how they channel power. Doing so will support the selection of executives best equipped to deliver organizational performance. 相似文献
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Research on motivation in the public sector has used public service motivation (PSM) and self-determination theory (SDT) interchangeably. This paper compares both theories, develops hypotheses pertaining to their assumptions, and empirically tests them in two public offices in Switzerland. We then explore their relationship with job satisfaction as an indicator of predictive validity. We find that SDT and PSM display conceptual differentiation and SDT has a strongest relationship to job satisfaction. However, moderation analysis suggests that employees with high levels of PSM have more stable job satisfaction compared to their low-PSM counterparts. 相似文献
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Trends in Approval Times for Genetically Engineered Crops in the United States and the European Union 下载免费PDF全文
Richard D. Smart Matthias Blum Justus Wesseler 《Journal of Agricultural Economics》2017,68(1):182-198
Genetically engineered (GE) crops are subject to regulatory oversight to ensure their safety for humans and the environment. Their approval in the European Union (EU) starts with an application in a given Member State followed by a scientific risk assessment, and ends with a political decision‐making step (risk management). In the United States (US) approval begins with a scientific (field trial) step and ends with a ‘bureaucratic’ decision‐making step. We investigate trends for the time taken for these steps and the overall time taken for approving GE crops in the US and the EU. Our results show that from 1996–2015 the overall time trend for approval in the EU decreased and then flattened off, with an overall mean completion‐time of 1,763 days. In the US in 1998 there was a break in the trend of the overall approval time. Initially, from 1988 until 1997 the trend decreased with a mean approval time of 1,321 days; from 1998–2015, the trend almost stagnated with a mean approval time of 2,467 days. 相似文献
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Marcel Fratzscher Bert Rürup Jochen Pimpertz Christoph Butterwegge Stephan Leibfried Kerstin Martens Uwe Schimank 《Wirtschaftsdienst》2017,97(5):315-332
Democracy seems to be at risk. People elect populists and autocrats, who offer simple solutions to social problems. Often, these problems are not even real ones but are only perceived as such. Economists have measures to determine which problems are fact-based, but they cannot draw a clear distinction between academic analysis and normative demand. If politics pursues a correction of a market outcome, any normative criteria other than efficiency have to be outlined explicitly. Nevertheless, some authors consider inequality one of the central contemporary social and economic challenges. Marcel Fratzscher emphasises that the solution is not found in more redistribution via taxes and transfers, but rather through greater equality of opportunity and social and educational mobility. Bert Rürup thinks that to stabilise the acceptance of the compulsory pension scheme, the dominance of the equivalence principle should be reduced. Further, the existence of different federal subsidy schemes should be replaced by a fixed federal contribution rate in alignment with the pension expenditures. In an international comparison, the fiscal burden for households with small and mid-level earned incomes is exceptionally high in Germany. In order to reduce this burden, Rürup suggests a contribution-free allowance for the social insurance contributions. 相似文献
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Reducing perceptions of overqualification and its impact on job satisfaction: the dual roles of interpersonal relationships at work 下载免费PDF全文
A sizeable portion of the working population perceives that they are overqualified for their jobs. This is problematic, given that research consistently shows that such beliefs translate into lower levels of job satisfaction. Hence, it behoves human resource management (HRM) scholars to identify factors that influence perceptions of overqualification and also moderators that may reduce the negative effect of perceived overqualification on job satisfaction. In this study, we present a moderated path model that posits that the quality of the relationships that employees hold with their leader and with their team is not only antecedents of perceived overqualification but it is also hypothesised to weaken the negative relationship between perceived overqualification and job satisfaction. Survey data that were gathered from two organisations in the Netherlands (n = 183) supported the model. Implications for theory and practice in HRM are discussed. © 2015 John Wiley & Sons Ltd 相似文献
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Ulrich Blum 《Wirtschaftsdienst》2010,90(10):638-639
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Kerstin Cuhls 《Technology Analysis & Strategic Management》2013,25(4):555-569
Foresight activities are conducted in many countries, but the Japanese were the most active in this field for many years. Most of their activities are based on the Delphi methodology. They published their first Delphi study in 1971 and repeated studies every five years. There is more knowledge available on more than 30 years of foresight with the Delphi approach in Japan. This provides an excellent opportunity to examine the established foresight system with the use of some examples. The forecast of the fax machine as an example of success, and the earthquake warning as a failure are illustrated in more detail, and the question is raised why—in spite of this mixed picture—foresight with the Delphi method is regarded as useful in Japan. 相似文献