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41.
This paper explores the nature of competitive assets that are based on control of part of a market's infrastructure using a case study of the U.K. frozen food market. Following an argument due to Stigler, the thesis of the paper is that such assets are inherently transitory, and that positions of market leadership based on them tend to erode. This argument is consistent with the experiences of Birds Eye during the post-War period.  相似文献   
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Capitation fees are considered to be an option for a change in funding principles for statutory health care insurance. This paper discusses several models of capitation fees either to be introduced for a part of the population or for all citizens. It analyses the impact of a change in financing health care on the labour market. Therefore microeconomic theory and a QUERU-model is applied. It also considers the issue of presently co-insured dependents.  相似文献   
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Oliver Quiring 《Publizistik》2007,52(3):375-399
While other European countries — above all Great Britain — experienced large-scale changes of the television landscape due to the introduction of interactive services, interactive television seems to remain of marginal importance in Germany. Although interactive television has to face specific supply-side problems in Germany, there is an obvious lack of studies that offer information on the knowledge about, attitudes towards and usage of interactive television services. The results of a regional survey and a content analysis of regionally important newspapers show that interactive services are relatively well-known, raise indifferent attitudes and are rarely used. Moreover the results indicate that interactive television faces a communication problem. Theoretically, the mass media should play a decisive role in the process of the adoption of innovations. In contrast the data shows that information from mass media channels has an almost negligable effect on the knowledge about, attitudes towards and the usage of interactive television services.  相似文献   
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School choice research mostly focuses on academic outcomes. Policymakers increasingly view entrepreneurial traits as a non-cognitive outcome important for economic growth. We use international PISA-2006 student-level data to estimate the effect of private-school competition on students’ entrepreneurial intentions, measured by their occupational desire to manage a small enterprise. We exploit Catholic-Church resistance to state schooling in the 19th century as a natural experiment to obtain exogenous variation in current private-school shares. Our instrumental-variable results suggest that a 10%-point higher private-school share raises students’ entrepreneurial intentions by 0.3–0.5% points (11–18% of the international mean) even after controlling for current Catholic shares, students’ academic skills, and parents’ entrepreneurial occupation.  相似文献   
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Profitability of cow-calf production is determined largely by market prices, calf weaning weights, and cow productive life. While producers individually have no effect on prices, weaning weights and productive life have genetic influences and hence can be altered by selection programs implemented by producers. We investigate the impact of a mutation in the leptin gene (exon 2; single nucleotide polymorphism [SNP] 305) on cow-calf profitability. Prior research shows that this mutation has effects on performance and traits of fed cattle and milk production in dairy cows. Using data from a teaching-research herd, we find that it is also associated with calf weaning weights and cow productive life. A bio-economic stochastic simulation demonstrates that the mutation has statistically positive impacts on profits, suggesting that producers can profitably make use of this information.  相似文献   
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Using London Stock Exchange data, we test the central implication of the canonical model of Ho and Stoll (1983) that relative inventory differences determine dealer behavior. We find that relative inventories explain which dealers obtain large trades and show that movements between best ask, best bid, and straddle are highly correlated with both standardized and relative inventory changes. We show that the mean reversion in inventories is highly nonlinear and increasing in inventory levels. We show that a key determinant of variations in interdealer trading is inventories and that interdealer trading plays an important role in managing large inventory positions.  相似文献   
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