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81.
Aliza FleischerAuthor VitaeRobert MendelsohnAuthor Vitae Ariel DinarAuthor Vitae 《Technological Forecasting and Social Change》2011,78(6):982-990
Farmers can respond to climate change by modifying their technologies or management practices, or both. In this paper, we examine the choice of crop, irrigation, and cover as a bundled decision by a farmer. Using discrete choice analysis and a cross section of farms from Israel, we test whether these decisions are sensitive to climate and find that they are. In the case of Israel, the farmers completely substitute capital for climate. Simulating increase in temperature suggests that warming would lead Israeli farmers to shift mainly to orchards under cover and irrigation. But it is likely that bundling adaptations will provide flexibility and sustainability for future farmers in many locations under climate change conditions. 相似文献
82.
Patent counts are very imperfect measures of innovative output. This paper discusses how additional data—the number of years a patent is renewed and the number of countries in which protection for the same invention is sought—can be used to improve on counts in studies that require a measure of the extent of innovation. Simple weighting schemes are proposed, which may remove half of the noise in patent counts as a measure of innovative output. We describe models of the patent application and renewal processes whose parameter estimates can be used to assess the value of the proprietary rights created by the patent laws. We illustrate their use with estimates of how the value of patent protection would vary under alternative legal rules and renewal fees and with estimates of the international flows of returns from the patent system. Recent progress in the development of databases has increased the potential for this type of analysis. 相似文献
83.
Many economic studies have addressed the issue of inefficiency of public water supply in rural areas and the potential for improved service by private companies. Many of these analyses focused on identifying either willingness to pay or comparing average service costs and prices paid by customers. This paper performs a welfare analysis of two water supply systems—public and self owned—in rural Tunisia. The paper calculates consumer and producer surplus and compares the performance of the two systems from a social point of view. Results suggest that both systems are inefficient, mainly because of a production level that is low compared with production capacity. 相似文献
84.
The Relative Efficiency and Implementation Costs of Alternative Methods for Pricing Irrigation Water 总被引:3,自引:0,他引:3
A useful means for achieving efficient allocation of irrigationwater is to put the right price tag on it. This article discussessome of the more pervasive pricing methods and compares theirefficiency performance, paying special attention to the impactof the cost of implementing each method on its efficiency. Thearticle uses an empirical example to demonstrate numericallythe relative efficiency of the different pricing methods andthe important role of implementation costs. The volumetric,output, input, tiered, and two-part tariff methods all can achieveefficiency, although the type of efficiency varies from onemethod to another. These methods also differ in the amount andtype of information, and the administrative cost, needed intheir implementation. The example indicates that water pricingmethods are most pronounced through their effect on the croppingpatternmore so than through their effect on water demandfor a given crop. Implementation costs have a large effect onwater tariffs and on welfare and hence should have an importantrole in determining the desirable method to use in any givenwater situation. 相似文献
85.
eXtensible Business Reporting Language (XBRL) is a language for the electronic communication of business and financial data which is revolutionizing business reporting around the world. It is a tool to bridge potential language barriers and unify financial reporting. This has appeal to foreign investors, among others, who can rely on information in XBRL‐tagged financial reports to make investment decisions without having to translate financial statements from local language. In 2008, Israel required most public companies to adopt International Financial Reporting Standards (IFRS) for financial reporting and to use XBRL‐tagged reporting format, as part of an aggressive effort to make its capital markets more transparent and attractive for foreign investors. In this paper, we study all Israeli public companies and analyze the accuracy and reliability of their XBRL‐tagged financial statements that are available on MAGNA, the Israel Securities Authority's electronic system. We describe the process by which the XBRL‐based data were collected and reported. We document, categorize, and analyze deficiencies in the XBRL‐tagged filings, and inconsistencies between them and the Hebrew‐based annual reports. We observe pervasive data entry errors resulting in inaccurate XBRL‐generated financial reports, which went undetected for over one year. Further, first year XBRL reporting (in conjunction with IFRS adoption) did not increase foreign investment in the Israeli capital markets. This analysis allows us to better understand the benefits and challenges of the adoption of XBRL. 相似文献
86.
Ariel R. Belasen Rik W. Hafer Shrikant P. Jategaonkar 《Contemporary economic policy》2015,33(4):668-677
Are state bond ratings, ceteris paribus, related to economic freedom? We test for the relationship between economic freedom and an aggregate index comprised of ratings by Standard & Poor, Moody's, and Fitch. We also test for a relationship between economic freedom and the ratings by these three agencies individually. With a sample covering all 50 states for the period 1995–2008, the evidence strongly indicates that state bond ratings are positively and significantly related to overall economic freedom as well as three sub‐categories of economic freedom. Our results show that the quantitative impact of economic freedom on bond ratings is comparable to the effect of state real income and the unemployment rate. (JEL E43, H71) 相似文献
87.
Robert Ariel 《The Financial Review》1998,33(1):17-30
In capital budgeting the correct risk adjusted discount rate for future cash flows is independent of whether the flow is a cost or a revenue. Contrary to a widely disseminated view in some popular textbooks and elsewhere, costs are not especially safe (nor risky), and accordingly costs should not be discounted at especially low risk adjusted discount rates. This paper analyzes capital budgeting within a portfolio model in which revenues and costs appear as “long’ and “short’ portfolio positions, respectively, and proves that costs are neither more nor less intrinsically risky than revenues. 相似文献
88.
89.
Audhesh Paswan María de los Dolores Santarriaga Pineda Francisco Carlos Soto Ramirez 《Journal of Business Research》2010,63(7):667-672
As emerging markets open, they attract large domestic and international retailers, which compete with traditional local small stores. This study investigates whether this influx of large stores is inevitable, by focusing on consumers' motivation for selecting a retail store, and the association between these motivation dimensions and the shopping patronage. The results from an empirical study conducted in Mexico indicate that consumer's preference for small stores is positively motivated by functional benefits and familiarity with small stores; and negatively associated with the functional benefits offered by large stores. These motivational dimensions are also positively associated with the share of wallet spent at small stores. While gender exhibits mixed effect on preference for small stores and the share of wallet, women do feel that large stores provide better functional benefits and support for the local economy. Finally, the study details the research and managerial implications of the findings. 相似文献
90.
Jesús Huerta de Soto 《Economic Affairs》2009,29(2):74-77
The introduction of the Solvency II insurance company regulatory regime is based on a flawed application of scientific ideas to areas to which they are simply not applicable. The new regime will endanger the solvency of the insurance industry in the long run. 相似文献