نتایج جستجو برای: q18

تعداد نتایج: 133  

2008
Sanzidur Rahman

This study aimed at examining the merit of crop diversification as a strategy for agricultural growth in Bangladesh. Specifically, the existence of economies of diversification, scale economies and diversification efficiencies at the farm level were examined using a stochastic input-distance function approach. Results reveal strong evidence of diversification economies amongst most crop enterpr...

2012
Tatyana Goldberg Tobias Hamp Burkhard Rost

MOTIVATION Subcellular localization is one aspect of protein function. Despite advances in high-throughput imaging, localization maps remain incomplete. Several methods accurately predict localization, but many challenges remain to be tackled. RESULTS In this study, we introduced a framework to predict localization in life's three domains, including globular and membrane proteins (3 classes f...

2010
Mauro Vigani Valentina Raimondi Alessandro Olper Giovanni Anania Paola Cardamone Thomas Heckelei Guillaume Gruére Sara Savastano

This paper deals with the quantification of GMO regulations on bilateral trade flows. A composite index of the ‘complexity’ of such regulations for sixty countries as well as an ‘objective’ score for six GMO regulatory sub-dimensions has been developed. Using a gravity model, we show how bilateral ‘similarity’ in GMO regulations, affect trade flows for the composite index and its components. Re...

2015
Alessandro Tarozzi

We study whether a sudden increase of the price of rice supplied by the Indian Public Distribution System in Andhra Pradesh, a large Indian state, had a negative impact on child nutrition. A few months after the price increase, a health survey started to record weight for a large sample of children. The data collection continued for several months, so that children measured later lived for a lo...

2003
John C. Beghin Barbara El Osta Jay R. Cherlow Samarendu Mohanty

We revisit the cost of the U.S. sugar program by analyzing the welfare implications of its removal. We use a multimarket model of U.S. sweetener markets, which includes raw crops, sugar extraction and refining, high-fructose corn syrup, and sweetener users (food-processing industries and final consumers). Our approach addresses the industrial organization of food industries using sweeteners and...

2002
A. Banerji

This paper uses auction theory to analyze wholesale markets for wheat in Northern India. This approach enables us not only to characterize the market in terms of buyer asymmetries, but also to detect the existence of collusion and to quantify its impact on market prices. We show that buyer asymmetries exacerbate the downward impact of collusion on prices. The paper also demonstrates the use of ...

2002
Philip Verwimp

of the paper The paper analyses the agricultural policy of the Habyarimana regime, which ruled Rwanda from 1973 to 1994. Econometric analysis of rural household survey data is used to investigate the effects of the 1989 crop failure in southern Rwanda on children’s health status. The paper shows that children in southern Rwanda are chronically malnourished, more then in other prefectures of Rwa...

2011
Stefan Ambec Marion Desquilbet

We examine regulations for managing pest resistance to pesticide varieties in a temporally and spatially explicit framework. We compare the performance of the EPA’s mandatory refuges and a tax (or subsidy) on the pesticide variety under several biological assumptions on pest mobility and the heterogeneity of farmers’ pest vulnerability. We find that only the tax (or subsidy) restores efficiency...

2000
STEVEN M. HELFAND

This article examines the determinants of the pattern of protection across products in the Brazilian agricultural sector from 1969 to 1989. Three key determinants of policy are explored: interest group pressure, government objectives, and structural change associated with economic crisis and a change in political regime. The principal agricultural policies are analyzed, and nominal protection c...

Journal: :American Economic Journal: Applied Economics 2021

The Green Revolution, which bolstered agricultural yields and economic well-being in Asia Latin America beginning the 1960s, largely bypassed sub-Saharan Africa. We study first randomized controlled trial of a government-implemented input subsidy program (ISP) Africa intended to foment Revolution. find that this temporary for Mozambican maize farmers stimulates Revolution technology adoption le...

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