نتایج جستجو برای: environmental effects

تعداد نتایج: 1855012  

2005
ERIC M. LEEPER

The paper presents the fiscal theory of the price level in a variety of models, including endowment economies with lump-sum taxes and production economies with proportional income taxes. We offer a microeconomic perspective on the fiscal theory by computing a Slutsky-Hicks decomposition of the effects of tax changes into substitution, wealth, and revaluation effects. Revaluation effects arise w...

2013
Cornelia S. Oedekoven Stephen T. Buckland Monique L. Mackenzie Kristine O. Evans Loren W. Burger

1. There is currently much interest in replacing the design-based component of conventional distance sampling methods by a modelling approach where animal densities are related to environmental covariates. These models allow identification of relationships between density and covariates. One of the uses of such models is to assess the effects of some intervention on numbers for species of conse...

2011
Hsiao-Fan Wang Wei-Liang Kao

 Because the consciousness of environmental protection, many issues related to Green Supply Chains (GSC) are discussed. Different from traditional supply chains, GSC are concerned about environmental impacts and material utilization issues, which make the selection of the suppliers more complicated. The mindset of “prevention prior to cure” and the restrictions of the European Union render gre...

Journal: :علوم دامی ایران 0
مرتضی ستایی مختاری امیر رشیدی محمدرضا محمد آبادی حسین مرادی شهر بابک

in this study the data of 2332 lambs from 815 dams and 61 sires, collected during 1993-2004 in kermani sheep breeding station were used to estimate phenotypic, genetic and environmental trends for birth weight (bw), weaning weight (ww), 6 months weight (6mw), 9 months weight (9mw) and yearling weight (yw). heritability estimates were determined for each trait using derivative free reml procedur...

1998
Richard D. Morgenstern William A. Pizer Jhih-Shyang Shih

Expenditures for environmental protection in the U.S. are estimated to exceed $150 billion annually or about 2% of GDP. This estimate, based on largely self-reported information, is often cited as an assessment of the burden of current regulatory efforts and a standard against which the associated benefits are measured. Little is known, however, about how well reported expenditures relate to tr...

2002
Scott M. Swinton

Data on agricultural and natural resource management typically have spatial patterns related to the landscapes from which they came. Consequently, econometric models designed to explain the determinants of humans’ natural resource management practices or their outcomes often have spatial structure that can bring bias or inefficiency to parameter estimates. Although econometric tools are availab...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید بهشتی - پژوهشکده علوم محیطی 1389

چکیده ندارد.

Journal: :The American Journal of Human Genetics 2009

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