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941.
Minority children have often been reported to be at high risk of injury. The higher levels of reported unintentional injuries among Arab children compared to Jewish children in Israel are mainly due to pedestrian traffic crashes, falls and burns. Arab children aged 1–4 years have a higher relative risk of injury compared to Jews. We suggest a socio-ecological model to explain these differences in risk based on individual, interpersonal, community and societal ecological levels of society. Each level is divided into social and physical environments and behaviour. Two main factors may contribute to the high rates of injury among Arab children: the quality of the physical environment in which the children live and play and the levels of child supervision. Socio-economic status may contribute to these differences at all ecological levels of society. This approach could be useful for researchers and practitioners to analyse similar issues in other communities and help develop appropriate interventions. 相似文献
942.
This study reports experiments that examine outcomes when agents choose between a payment scheme that rewards based on absolute
performance (i.e., piece rate) and a scheme that rewards based on relative performance (i.e., a tournament). Holding total
payments in the tournament constant, performance is higher when the tournament option is winner-take-all compared to a graduated
tournament (i.e., second and third-place performers also receive a payment). Performance is higher in the winner-take all
tournaments even among participants that choose the piece-rate option. While there is a modest amount of overcrowding, there
are no significant differences in overcrowding across conditions. Entry rates into the tournament and the relative ability
of tournament entrants (compared to non-entrants in the same condition) are higher in the graduated tournament condition than
the winner-take-all conditions. Consequently, the winner-take-all tournament is more efficient than the graduated tournament
(incentive effects are stronger and the overcrowding is about the same), but the graduated tournament provides a more effective
mechanism to identify the most capable performer in a talent pool.
Electronic Supplementary Material Supplementary material is available in the online version of this article at .
JEL Classification D8 · J3 · L2 相似文献
943.
By reexamining the effect of unemployment benefits on reemployment probabilities we make two contributions to the literature: first, we estimate separate effects for reemployment in the local or a distant region. Second, we address the problem of incomplete duration within a competing risks model. Our results confirm that missing data problems at first preclude any meaningful result even though we have access to daily individual data on 50 % of the male workforce in Germany. When we impose additional assumptions, we obtain evidence that the treatment effect depends on the household context, the treatment intensity and the destination state. 相似文献
944.
945.
The effectiveness of 42 detergents, 11 non-phosphate containing powdered detergents, 12 phosphate containing powdered detergents, 11 unbuilt liquid detergents and eight built liquid detergents, of varying formulations, in cleaning a standard soiled fabric in water of varying hardness was evaluated. Powdered detergents were found to be significantly affected only at very high water hardness levels. There was no significant difference between washing in warm and hot water for the liquid detergents, except for a melaleucaoil based detergent which performed significantly better in hot water. Increasing water hardness had no significant effect on liquid detergents. Powdered detergents performed better than liquid detergents in cleaning the standard soiled fabric. While no one detergent was significantly better than the others, in general, washing with detergents that contained phosphates did give somewhat better results in warm water. Detergents that contained bleach as an additive did not result in whiter fabric. 相似文献
946.
Webb MA 《Journal of public economics》1985,26(2):249-262
This study is concerned with the implications of the brain drain. "The brain drain alters both the endowments of educated labor and the cost of increasing the endowment of such labor in both countries of immigration and emigration." It thus affects government subsidies for education both directly and indirectly. "This has implications for the burden of education expenditures and net supplies of educated labor in a world with a brain drain. The [author] shows the need for inclusion of a mechanism for transfers between the involved governments if a compensation scheme is to yield Pareto efficient migration." 相似文献
947.
M. Angeles Iniesta-Bonillo Raquel Sánchez-Fernandez Amparo Cervera-Taulet 《The Service Industries Journal》2013,33(15):2445-2462
Perceived value is of great interest in current marketing research. However, in the area of Internet as a shopping channel of small businesses, there has been little analysis of customer perceived value and its determinants. This paper examines two little analysed aspects of value creation, experience valence and personal values. The analysis of data from a survey of tourism service purchase shows that experience valence, in terms of relevant information, ease of use and customer service, clearly influences perceived value after the online shopping experience. In contrast, only personal values of sense of security and sense of accomplishment influence perceived value. 相似文献
948.
Differences in exchange rate pass-through in the euro area 总被引:3,自引:0,他引:3
This paper focuses on the pass-through of exchange rate changes into the prices of imports made by euro area countries originating outside the area. Using data on import unit values for 13 different product categories for each country, we estimate industry-specific rates of pass-through across and within countries for all euro members. In the short-run, pass-through rates differ across industries and countries and are less than one. In the long-run neither full pass-through nor equality of pass-through rates across industries and countries can be rejected. Differences exist across euro area countries in the degree that a common exchange rate movement gets transmitted into consumer prices and costs of production indices. Most of these differences in transmission rates are due to the distinct degree of openness of each country to non-euro area imports rather than to the heterogeneity in the structure of imports. 相似文献
949.
This research explores how partitioning attributes in online search interfaces changes the valuations of those attributes—and impacts subsequent choice—such that attributes that are displayed as separate categories tend to receive greater decision weight than attributes grouped under umbrella categories. Across several choice domains—cars, dates, and hotels—we show that different attribute partitions impact the importance assigned to attributes (Studies 1 and 2), as well as consumer choices (Studies 3 and 4). We argue that these effects are due in part to users' willingness to use the implicit recommendations of interface designers to determine the importance of attributes, a willingness that extends to following explicit recommendations of online agents based on those attributes (Study 5). © 2009 Wiley Periodicals, Inc. 相似文献
950.