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排序方式: 共有262条查询结果,搜索用时 31 毫秒
91.
Laura Wolf‐Powers 《International journal of urban and regional research》2017,41(3):414-425
Since the early 2000s in the United States, food deserts—neighborhoods in which households have limited geographic access to full‐service supermarkets or grocery stores— have become conceptually central in public policy research on food security. Analyzing this phenomenon from a ‘policy mobility’ perspective, this article traces the food desert's emergence in policy discourse, locating it within an entrepreneurial social policy paradigm that privileges real estate development over direct economic relief. In the context of property‐led anti‐poverty efforts, the identification and mapping of food deserts catalyzes a logic that leads to subsidy to grocery store development in low‐income areas (or ‘fresh food financing’), while at the same time officials are cutting programs such as the Supplemental Nutrition Assistance Program (food stamps), which directly supplements household food budgets. The article contributes to widening critical discussion of the food desert paradigm and the policy interventions with which it is associated. It calls on urban researchers and practitioners to reframe discussions of food access and nutrition around the shortage of basic income and a need for higher wage floors. 相似文献
92.
Demographic ageing and technological progress leads to rising health care costs. Under the assumption that the solidarity-based financing of the German Statutory Health Insurance System will reach its limits, the authors discuss how and on which level questions about rationing should be answered. From an ethical point of view, rationing should be based on general and consistent rules at the governance level rather than on case by case decisions by healthcare providers. Moreover, transparency is inevitable to maintain the relationship of trust between physicians and patients and to improve the patient’s wellbeing. 相似文献
93.
94.
95.
Ivor Cowlrick Thomas Hedner Roland Wolf Michael Olausson Magnus Klofsten 《R&D Management》2011,41(4):321-336
The main purpose of this study was to investigate judgments made by employees from the pharmaceutical industry and allied health‐care sectors in a set of four different drug discovery and development cases derived from real scenarios. Each case study related to go/no‐go decisions taken from various steps in drug discovery through preclinical and clinical development (investigational new drug) on to market introduction (new drug application) and treatment of the target population. Using a web‐based questionnaire, 52 respondents made five sets of judgment within each drug case whether to continue or halt further project development. For each case, additional details of the developmental scenario were disclosed to the respondent after completion of each judgment response. We also assessed to what extent the individual judgments given by the respondents were influenced by work experience and functional role, education, or their perceived entrepreneurial character. Our study demonstrates that health‐care employees differ substantially in their individual intuitive judgments of benefit and risk in go/no‐go decisions during the drug discovery and development process. This lack of coherence and wide variability with respect to the drug development cases selected may reflect judgment in the real world. Such judgments are usually taken from incomplete information, and individual decision‐making rules vary substantially between experts in the field. Further knowledge about this inherent human functional judgment variability may be helpful to form a better understanding of individual decision‐making in relation to inherent uncertainties. Additional research may also clarify how personal experience within drug discovery and development influences judgment and help to optimize decision outcomes in the drug development sector. Importantly, a deeper insight of the fundamentals and rules that shape individual and group decision‐making of everyday drug discovery and development may help to optimize the decision processes in the pharmaceutical industry. 相似文献
96.
Abstract Why do borders still matter for economic activity? The reunification of Germany in 1990 provides a unique natural experiment for examining the effect of political borders on trade. With the fall of the Berlin Wall and the rapid formation of a political and economic union, strong and strictly enforced administrative barriers to trade between East Germany and West Germany were eliminated completely within a very short period of time. Remarkable persistence in intra‐German trade patterns along the former East‐West border suggests that border effects are neither statistical artefacts nor driven by administrative barriers to trade, but arise from economic fundamentals. 相似文献
97.
Thomas A Wolf 《Journal of Comparative Economics》1978,2(3):226-245
In a centrally planned economy (CPE) that has eliminated detailed central planning of output and foreign trade and introduced some domestic price flexibility and organic linkages to world-market prices, the exchange rate can take on more than an accounting function. This paper contrasts the effects of exchange-rate adjustment in such a “modified” CPE (or MCPE) with those in a market economy. There are a number of reasons why MCPE authorities might eschew devaluation as a policy instrument, despite the possibility that it would be more effective in some cases in improving the trade balance than in a market economy. 相似文献
98.
We use retail transaction prices for a multinational retailer to examine the extent and permanence of violations of the law of one price. For identical products, we find typical deviations of 20–50 percent, with some evidence for convergence over time. Such differences might be due to differences in local costs. If so, relative prices of similar products (round versus square mirrors) should be equal across countries. In fact, relative prices vary significantly across very similar goods within a product group. The finding suggests that differences in local distribution costs, local taxes, and probably tariffs do not explain the price pattern, leaving strategic pricing or other factors resulting in varying markups as alternative explanations.
JEL classification : F 41; L 11 相似文献
JEL classification : F 41; L 11 相似文献
99.
This paper motivates and describes a computer simulation program to predict the general equilibrium effects of grants-in-aid to local governments on the tax and spending decisions of these governments. The SOFA (Simulation of Fiscal Assistance) program explicitly incorporates the effects of family relocation (the “Tiebout” adjustment process) and the availability of competitive private market providers (e.g. private schools, hospitals, recreation facilities) on the levels and distribution of local public services. SOFA can simulate the effects of the four main forms of grants-in-aid: (1) lump-sum transfers, (2) matching aid, (3) base equalizing aid, and (4) tax relief aid. In addition to the individual city predictions on taxes and spending SOFA provides the following summary statistics: (1) mean level of spending, (2) coefficient of variation of spending, (3) values for a utilitarian, Rawlsian, and egalitarian objective functions, (4) the central government tax rate needed to finance aid, and (5) the percent of families in the region who prefer the private provision of the “public” service. A copy of the program and a program users manual containing a detailed derivation of the model as well as user's instructions are available from the authors upon request. 相似文献
100.
For many years the Simultaneous Multi-Round Auction (SMRA) has been the primary auction design for spectrum sales worldwide. Recently, the core-selecting Combinatorial Clock Auction (CCA) has been used as an alternative to the SMRA in a number of countries promising strong incentives for truthful bidding and high efficiency as a result. We analyze the efficiency and auctioneer revenue of the CCA in comparison to SMRA and examine bidding behavior in both formats. The experiments are based on two value models, which resemble single- and multiband spectrum sales in the field. Such applications often allow for thousands of possible bundles. Bidders in the CCA submitted bids for only a fraction of all bundles with a positive valuation. Bundles were selected based on synergies and payoff after the primary bid rounds. As a consequence, we found efficiency of the CCA to be significantly lower than that of SMRA in the multi-band value model and auctioneer revenue of the CCA to be lower in both value models. In addition, we characterize several properties of the auction format, which result from the two-stage design and the payment and activity rules. 相似文献