We develop and estimate a discrete-choice model of differentiated products for the corn and soybean seed industry in the United States to assess the welfare impact of genetically engineered (GE) crop varieties. We use a unique dataset, spanning the period 1996-2011, that contains rich information on the adoption of GE traits. Using a two-level nested logit model, we estimate that U.S. farmers a...

Background: The present research study was undertaken to the dairy farmer’s perception and adaptation practices against impending climate change in arid semi-arid regions of Haryana. Methods: area Hisar Karnal Districts had been purposively selected based on rainfall pattern milk production potential state. In this study, interview schedule constructed reveal farmers were studied through Enviro...

Understanding the determinants of land allocation decisions by farmers in food crops-tree production is vital for formulating use plans and policies sustainability resource. This study used 413 randomly selected households to investigate factors that guide smallholder farmers' between crops trees. Results from fractional multinomial logit model show sex, household size, awareness policy, access...

Rice is the staple food in Tamil Nadu and is grown in an area of 2.6 Mha with a production of 8.19 Mt and productivity of 3.2 t/ha. In the context of high water demand by rice farmers, any strategy that would produce higher rice yield with less water is the need of the day. One such system is “System of Rice Intensification” (SRI), which was developed by Fr. Henri de Laulanie in Madagascar in 1...

The organic agriculture represents a promising alternative for the future of European agriculture. It is consistent with the notion of sustainable development set forth already in the 1992 CAP Reform. Despite of increasing importance of organic farming, the research on organic farming is still limited. This scarcity of the research is especially true for New Member States of the enlarged EU. Th...

In face of gradual ecological deterioration, the Chinese government has been in search of more efficient and effective mitigation policies, aiming to promote the sustainability of livestock production. However, researchers and policy makers seem to neglect a key issue: pinpoint policies are the most important, which means niche targeting is the premise before any policy design, such that better...

The molecular biology of spuma or foamy retroviruses is different from that of the other members of the Retroviridae. Among the distinguishing features, the N-terminal domain of the foamy virus Env glycoprotein, the 16-kDa Env leader protein Elp, is a component of released, infectious virions and is required for particle budding. The transmembrane protein Elp specifically interacts with N-termi...