602 research outputs found

    The Performance of Compliance Measures and Instruments for Nitrate Nonpoint Pollution Control Under Uncertainty and Alternative Agricultural Commodity Policy Regimes

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    Following Weitzman (1974), there is ample theoretical literature indicating that choice of pollution control instruments under conditions of uncertainty will affect the expected net benefits that can be realized from environmental protection. However, there is little empirical research on the ex ante efficiency of alternative instruments for controlling water, or other types of pollution, under uncertainty about costs and benefits. Using a simulation model that incorporates various sources of uncertainty, the ex ante efficiency of price and quantity controls applied to two alternative policy targets, fertilizer application rates and estimated excess nitrogen applications, are examined under varying assumptions about agricultural income support policies. Results indicate price instruments outperform quantity instruments. A tax on excess nitrogen substantially outperforms a fertilizer tax in the scenario with support programs, while the ranking is reversed in the scenario without support programs.Environmental Economics and Policy,

    UNCERTAINTY AND THE REGULATION OF NITRATE POLLUTION FROM AGRICULTURE

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    A simulation of U.S. corn production compares four environmental policies for controlling agricultural nitrate pollution. Public uncertainty about key economic parameters are considered. Results indicate that policy choice is sensitive to commodity programs and the public information structure. Agricultural research benefits are also sensitive to agricultural environmental policy choices.environmental policy, nonpoint pollution, uncertainty, value of information, Environmental Economics and Policy,

    Knowledge-based systems in Japan

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    This report summarizes a study of the state-of-the-art in knowledge-based systems technology in Japan, organized by the Japanese Technology Evaluation Center (JTEC) under the sponsorship of the National Science Foundation and the Advanced Research Projects Agency. The panel visited 19 Japanese sites in March 1992. Based on these site visits plus other interactions with Japanese organizations, both before and after the site visits, the panel prepared a draft final report. JTEC sent the draft to the host organizations for their review. The final report was published in May 1993

    Scaling up women’s agripreneurship through public-private linkages to improve rural women’s income, nutrition and the effectiveness of institutions in rural Ghana (Linking Up : women’s agripreneurship sustainability and scale-up project)

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    Over one-third of rural Ghanaians live below the poverty line, with women and children living in poverty having the highest risk of poor nutrition and health. Sustained integrated approaches that increase agricultural productivity and value addition, diversify incomes, and enhance knowledge and skills among all stakeholders, notably women are required to improve the well-being of rural communities. The Scaling up women’s agripreneurship through public-private linkages to improve rural women’s income, nutrition, and the effectiveness of institutions in rural Ghana project (Linking Up) is a follow-up study to build on the results of the Nutrition Links project (NLP) funded by the Canadian Government (2013-18). The NLP’s multi-sectoral integrated livelihoods, nutrition, agriculture and health intervention with rural women groups in the Upper Manya Krobo District (UMKD) of the Eastern Region decreased household food insecurity, increased women’s access to income and improved young children’s diets and nutritional status. However, efforts to sustain the intervention through multisectoral collaborations by local institutions were unsuccessful due primarily to the lack of integration of sustainability mechanisms into the regular operations of the local institutions. In this report we note factors identified that facilitate or impede women’s participation in farming and agri-food entrepreneur associations supported by local institutions

    A large area cosmic muon detector located at Ohya stone mine

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    The chemical composition of the primary cosmic rays between 10 to the 15th power eV and 10 to the 18th power eV were determined by a Large Area Cosmic Muon Detector located at Ohya stone mine. The experimental aims of Ohya project are; (1) search for the ultra high-energy gamma-rays; (2) search for the GUT monopole created by Big Bang; and (3) search for the muon bundle. A large number of muon chambers were installed at the shallow underground near Nikko (approx. 100 Km north of Tokyo, situated at Ohya-town, Utsunomiya-city). At the surface of the mine, very fast 100 channel scintillation counters were equipped in order to measure the direction of air showers. These air shower arrays were operated at the same time, together with the underground muon chamber
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