نتایج جستجو برای: farm heterogeneity

تعداد نتایج: 132579  

Journal: :Journal of Occupational Medicine and Toxicology (London, England) 2008
Carla Perrotta Anthony Staines Pierlugi Cocco

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...

2016
Ziyan Yang Zanhong Li Xiubin Li Liangjie Xin Laixiang Sun

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...

2004
Michael Lipton

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...

2008
Riccardo Scarpa Mara Thiene Francesco Marangon

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...

2016
Marjorie C. McCullagh Tanima Banerjee James J. Yang Janice Bernick Sonia Duffy Richard Redman

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...

2008
JSC Boersema JPTM Noordhuizen A Vieira JJ Lievaart W Baumgartner

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 ...

Ali Rokni Fatemeh Vafi sani Malihe Pouredalati Masumeh Ghazanfarpour, Neda Asadi, Omolbanin Heydari Sahebeh Dadshahi Seyed Amirreza Akhlagh, Vahideh Hosseinzadeh

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...

Journal: :Environmental and Resource Economics 2022

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...

Journal: :Applied Economics 2022

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, ...

Journal: :Journal of the Agricultural and Applied Economics Association 2022

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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