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211.
212.
James Madzimure Michael Chimonyo Kennedy Dzama Stephen T. Garnett Kerstin K. Zander 《Journal of Agricultural Economics》2015,66(3):812-831
Although there is growing demand for animal products in Africa, production is stagnating. Appropriate management of livestock diversity could help reinvigorate production, contribute to food security and improve farmers’ livelihoods, particularly in subsistence‐oriented systems. We assess differences in farmers’ preferences and economic values for pig traits across different production systems and across areas that have been affected and unaffected by classical swine fever (CSF). Not surprisingly, market‐oriented farmers derived higher values from the productive traits such as heavy slaughter weight and large litter size found in exotic pig genotypes. Subsistence‐oriented farmers, particularly in swine fever affected areas, placed high value on tolerance to disease. We found that CSF changed farmers’ preferences for adaptive traits, and less so for productive traits. Therefore, indigenous breeds become more valuable for subsistence farmers and crossbreeds for market‐oriented farmers if CSF is a risk. Our results can have implications for breeding and conservation strategies and for compensation strategies after culling, and will become increasingly relevant if, as predicted, heat waves and disease outbreaks become more frequent in pig production systems in South Africa with climate change. 相似文献
213.
Carmen Hubbard John Davis Siyi Feng David Harvey Anne Liddon Andrew Moxey Mercy Ojo Myles Patton George Philippidis Charles Scott Shailesh Shrestha Michael Wallace 《EuroChoices》2018,17(2):19-26
There is little doubt that Brexit would have significant implications for UK agriculture, a sector with strong trade links to the EU and strong reliance on CAP income support. This article reports preliminary results from employing a Computable General Equilibrium Model, a Partial Equilibrium Model and Farm Level Models to explore selected trade and domestic policy scenarios post‐Brexit. These allow for the estimation of changes in producer prices, production and farm incomes against a baseline scenario of continued EU membership. Under a Free Trade Agreement with the EU, agricultural impacts are relatively modest. By contrast, unilateral removal of import tariffs has significant negative impacts on prices, production and incomes. Adoption of the EU's WTO tariff schedule for all imports favours net importers (e.g. dairy) and harms net exporters (e.g. sheep). Given the strong dependence of most UK farms on direct payments, their removal worsens negative impacts of new trade arrangements and offsets positive impacts. Impacts vary across different types and sizes of farm, but also regionally. However, the period of adjustment to new trade and domestic policy conditions may prove very challenging for a large number of farm businesses. 相似文献
214.
The Coors Brewing Company owns a single-site, integrated malting facility and brewery in Golden, Colorado; a second brewery in Memphis, Tennessee; and a mixing facility in Elkton, Virginia. Coors operates a research and development program that breeds barley varieties suitable for malting at the Golden site. Coors contracts with 900 growers in Colorado, Idaho, Montana, and Wyoming for approximately 160,000 acres of malting barley. This case study is designed for senior- and graduate-level courses in agribusiness management. The case relates three theories of vertical coordination to Coors' decision to contract 100% of its malting barley requirements. 相似文献
215.
Factors explaining the diffusion of hybrid maize in Latin America and the Caribbean region 总被引:1,自引:0,他引:1
If future demand for maize in Latin America and the Caribbean region (LAC) is to be met from local sources, domestic production must continue to increase. Because further expansion in the area planted to maize is precluded by the limited availability of arable land, future increases in production will have to rely heavily on the spread of productivity‐enhancing hybrid technology. Until now, the diffusion of hybrid maize in LAC has been quite variable. Using data from 18 countries, we investigate factors affecting the hybrid maize diffusion rate. Our findings validate conventional profitability‐based explanations of producer adoption behavior, but they also confirm the importance of supply‐side factors, thereby providing empirical support for the life cycle theory of seed industry development. We conclude that if policy makers in LAC are to accelerate the diffusion of hybrid maize, they will have to ensure an environment in which it is not only profitable for producers to adopt improved germplasm, but also profitable for the seed industry to produce and sell high‐quality seed. 相似文献
216.
Michael R. Ward 《Technological Forecasting and Social Change》2012,79(8):1474-1483
This paper develops an identification strategy to generate unbiased estimates of Internet usage spillovers using a unique data set of US households. This strategy addresses the effects of variables that affect consumers' decisions but are unobservable to the researcher that lead to biased estimates. The estimator developed here examines changes in household behavior over time and uses county level instrumental variables for county level spillover measures.Multiple potential sources of learning are identified including those from the household's locality, from educational Internet subsidies, and from universities. There is general support for all sources, but the locality and subsidy results are both more robust and larger. These findings directly address the policy relevance of these spillover sources and they have implications for policies to encourage Internet use as well as for identification strategies for the effects of the Internet on behavior. 相似文献
217.
Ronald N. Kostoff Author Vitae Joel A. Block Author Vitae Author Vitae Michael B. Briggs Author Vitae Author Vitae Jesse A. Stump Author Vitae Author Vitae Terence J. Lyons Author Vitae Author Vitae 《Technological Forecasting and Social Change》2008,75(2):276-299
Literature-related discovery (LRD) is the linking of two or more literature concepts that have heretofore not been linked (i.e., disjoint), in order to produce novel, interesting, plausible, and intelligible knowledge (i.e., potential discovery). The open discovery systems (ODS) component of LRD starts with a problem to be solved, and generates solutions to that problem through potential discovery. We have been using ODS LRD to identify potential treatments or preventative actions for challenging medical problems, among myriad other applications. The five immediately preceding papers in this Special Issue describe the application of ODS LRD to Raynaud's Phenomenon (RP), cataracts, Parkinson's Disease (PD), Multiple Sclerosis (MS), and Water Purification (WP). We describe the lessons learned from each application, and how the techniques can be improved further.Generation of much potential discovery using ODS LRD is possible when the conceptual roadblocks to discovery are removed. Some of these roadblocks include use of numerical filters that are unrelated to generating discovery, and excessive reliance on literatures directly related to the problem literature of interest. The issue of how to handle large amounts of potential discovery has not been addressed in the literature, since most ODS LRD researchers have tried to find a relatively few potential discovery items. We present a development strategy that capitalizes on the large amounts of potential discovery we have identified. 相似文献
218.
The purpose of this paper is to assess the main aspects involved in the competitiveness of manufacturing industries in the Euro zone area (EZ-12). To this end, we apply the generalized method of moments to a panel data error correction model. Our sample spans the period from 1970 to 2007, and our findings provide insight into the impact of manufacturing on the international competitiveness of European firms and industries. From the estimated magnitude of the relevant coefficients, we conclude that in the long run, a change in labor and capital compensation is not fully passed on to manufacturing growth, while an increase in the market power of the manufacturing sector will negatively affect its competitiveness. 相似文献
219.
Has Switzerland Really Been Marked by Low Productivity Growth? Hours Worked and Labor Productivity in Switzerland in a Long‐run Perspective 下载免费PDF全文
Michael Siegenthaler 《Review of Income and Wealth》2015,61(2):353-372
This paper shows that previous work has understated Switzerland's performance in terms of labor productivity growth. First, available data on hours worked are incoherent and overestimate growth in hours worked. The paper therefore establishes a consistent series of total hours worked and its components covering 1950–2010, showing that Swiss labor inputs actually were stable from 1964 to 2007. Second, long‐term improvements in Switzerland's Terms of Trade indicate that quality improvements in Swiss exports might not be fully mirrored in growth of GDP and, hence, productivity growth. 相似文献
220.
Joyce A. Lanning Michael A. Morrisey Robert L. Ohsfeldt 《Journal of Regulatory Economics》1991,3(2):137-154
Past studies of hospital rate setting regulation conclude that mature programs have been effective in constraining hospital expenditures. However, if rate regulation is influenced by higher hospital expenditures the relationship between expenditures and rate setting is confounded. This study assesses the impact of rate setting on hospital and non-hospital expenditures using a simultaneous-equation model which separates the effects of hospital expenditures on the decision to regulate from the effects of regulation on expenditures. The simultaneous-equation results indicate that mature rate setting is associated with lower per capita health care expenditures, including hospital and non-hospital expenditures. 相似文献