نتایج جستجو برای: farm heterogeneity
تعداد نتایج: 132579 فیلتر نتایج به سال:
BACKGROUND Multiple myeloma has been linked to farming for over thirty years. However, there is little clarity about the magnitude of the risk, nor about the specific agricultural exposures which contribute to the risk. METHODS We have carried out a systematic review of case-control studies of multiple myeloma published from 1970 to October 2007. Studies were identified through database searc...
Cropland abandonment has emerged as a prevalent phenomenon in the mountainous areas of China. While there is a general understanding that this new trend is driven by the rising opportunity cost of rural labor, rigorous theoretical and empirical analyses are largely absent. This paper first develops a theoretical model to investigate household decisions on farming scale when off-farm labor marke...
Family farming, crop science and ‘globalisation’ together largely determine progress against poverty. Faster in 1960-90 than at any time in world history, such progress has slowed down. So have ‘land reform’ and science-based rises in small farmers’ staples food productivity, while aid to agriculture has fallen by over two-thirds and farm prices have been further forced down (and farm science d...
In this paper we investigate consumers’ preferences for various environment-friendly production systems for carrots. We use discrete-choice multi-attribute stated-preference data to explore the effect of collective reputations from growers of an Alpine valley known for its environmentfriendly production: Val di Gresta ‘the valley of organic orchards’. Data analysis of the panel of discrete resp...
PURPOSE Although farm operators have frequent exposure to hazardous noise and high rates of noise-induced hearing loss, they have low use of hearing protection devices (HPDs). Women represent about one-third of farm operators, and their numbers are climbing. However, among published studies examining use of HPDs in this worker group, none have examined gender-related differences. The purpose of...
Driven by consumer demands, European legislation has suggested the use of HACCP (Hazard Analysis Critical Control Point) as the quality risk management programme for the whole dairy chain. Until now, an exception has been made for primary producers, but as regulations evolve, on-farm HACCP-like programmes should be ready to assure food safety as well as animal health and animal welfare. In our ...
Background Hip dysplasia is an abnormality of the hip joint where the socket portion does not fully cover the ball portion, which might increase the risk of joint dislocation. Hip dysplasia may occur at birth or develop in early life. The purpose of the present study was to assess the effect of treatment with Tübingen hip flexion splint for Dev...
Abstract Agriculture is an important source of greenhouse gas (GHG) emissions and thus contributes considerably to global warming. However, farms can vary substantially in terms their climatic impact. So far, most policies aiming at reducing GHG from farming have largely been based on findings the aggregate level, without taking farm heterogeneity properly into account. This study seeks provide...
We analyse persistent and transient technical efficiency of crop farms in Austria from 2003 to 2017 by estimating the four-component stochastic frontier model using a multi-step procedure extend it account for heterogeneity bias introducing Mundlak adjustments. Moreover, we examine determinants both inefficiency. Results show that with favourable natural conditions, higher share family labour, ...
This study assesses preferences for COVID-19 pandemic recovery policies from four key groups representing the upstream (input retailers), farm (farmers), and downstream (millers traders) levels of Myanmar's agri-food-system using best–worst scaling (BWS) method. Our results show that nonrestrictive such as maintaining open international borders allowing businesses to stay are preferred cash tra...
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