نتایج جستجو برای: طبقهبندیjel o13

تعداد نتایج: 337  

2000
J. Peter Neary

I consider the interaction of trade and environmental policies in two canonical models: competitive general equilibrium (which I extend to allow for monopoly power in trade) and multi-period oligopoly (which I extend to incorporate a general pollution abatement technology). Despite the complexities of the models and the considerable differences between them, they have surprisingly similar impli...

2013
Sheetal Sekhri

This paper evaluates the impact of access to groundwater on poverty using data from rural India. The estimation exploits the fact that the technology required to access groundwater changes exogenously due to constraints imposed by laws of physics at a depth of eight meters. I find that rural poverty in areas where depth from surface is below the cutoff is 9 to10 percent higher. Using survey dat...

2010
Philippe Aghion Antoine Dechezleprêtre David Hemous Ralf Martin John Van Reenen

Can directed technical change be used to combat climate change? We construct new firm-level panel data on auto industry innovation distinguishing between “dirty” (internal combustion engine) and “clean” (e.g. electric and hybrid) patents across 80 countries over several decades. We show that firms tend to innovate relatively more in clean technologies when they face higher tax-inclusive fuel pr...

2015
Shunsuke Managi George Halkos

Over the past several decades, significant efforts have been made to regulate the use of resource and pollution in most industrialized countries, and the stringency of pollution regulations has continued to increase globally. At the same time, physical and social infrastructures are influenced by changes in the use of resources which contribute to the wealth of many regions. Technical progress ...

2003
Hans Lofgren Alan Richards

In MENA, household food insecurity, which is closely related to poverty and undernourishment, is most severe in rural areas and concentrated within Iraq, Sudan, and Yemen. 25% of the MENA population may be poor and 7% undernourished. The key to increased national and household-level food security is pro-poor growth, driven by export-oriented, labor-intensive sectors. Agricultural sector policie...

2011
Rema Hanna

Using the most comprehensive developing country dataset ever compiled on air and water pollution and environmental regulations, the paper assesses India’s environmental regulations with a difference-in-differences design. The air pollution regulations are associated with substantial improvements in air quality. The most successful air regulation resulted in a modest but statistically insignific...

Journal: :British Journal of Surgery 2021

Abstract Introduction The goal of neoadjuvant chemothepaeutics(NACs) and surgical excision breast cancer is to control ultimately eliminate the malignant tumour. Despite advances in treatment, a subset patients will develop disease recurrence. Tumour stromal cells(TSCs) are non-cancerous cells that support malignancy within tumour microenvironment(TME). In particular, TSCs can suppress host imm...

Journal: :The American Economic Review 2021

Can targeting information to network-central farmers induce more adoption of a new agricultural technology? By combining social network data and field experiment in 200 villages Malawi, we find that central is important spur the diffusion process. We also provide evidence one explanation for why centrality matters: process governed by complex contagion. Our results are consistent with model whi...

Journal: :مجله علوم اعصاب شفای خاتم 0
kaveh moghaddam department of exceptional children psychology, science and research branch, islamic azad university, tehran, iran

ptsd or post traumatic stress disorder is one of the most important psychological disorders in children in which symptoms such as anxiety and depression can be seen. beside the strategies like cbt or cognitive behavioral therapy and psychotherapy art therapy is one of the most important strategies which can help to children with ptsd to cope with this disorder. according to art therapy studies ...

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