Journal of Agricultural Economics最新文献_第9页

Overcoming data barriers in spatial agri-food systems analysis: A flexible imputation framework 克服空间农业食品系统分析中的数据障碍：一个灵活的插补框架

IF 3.4 2区经济学

Journal of Agricultural Economics Pub Date : 2023-01-04 DOI: 10.1111/1477-9552.12523

Jing Yi, Samantha Cohen, Sarah Rehkamp, Patrick Canning, Miguel I. Gómez, Houtian Ge

引用次数: 0

Analysing inefficiency in a non-parametric spatial-dynamic by-production framework: A k-nearest neighbour proposal 分析非参数空间动态生产框架中的效率低下:一个k近邻建议

IF 3.4 2区经济学

Journal of Agricultural Economics Pub Date : 2022-12-28 DOI: 10.1111/1477-9552.12522

Ioannis Skevas, Alfons Oude Lansink, Theodoros Skevas

{"title":"Analysing inefficiency in a non-parametric spatial-dynamic by-production framework: A k-nearest neighbour proposal","authors":"Ioannis Skevas, Alfons Oude Lansink, Theodoros Skevas","doi":"10.1111/1477-9552.12522","DOIUrl":"10.1111/1477-9552.12522","url":null,"abstract":"This paper accounts for spatial effects by benchmarking farms against their k-nearest neighbours (KNN) and measuring their inefficiency in a non-parametric dynamic by-production setting. The optimal number of neighbours <math>\u0000 <semantics>\u0000 <mrow>\u0000 <mi>k</mi>\u0000 </mrow>\u0000 <annotation>$$ k $$</annotation>\u0000 </semantics></math> against which farms are compared corresponds to the value of <math>\u0000 <semantics>\u0000 <mrow>\u0000 <mi>k</mi>\u0000 </mrow>\u0000 <annotation>$$ k $$</annotation>\u0000 </semantics></math> that maximises the Moran I test for spatial autocorrelation of the good and the bad output of the farms' two sub-technologies. The inefficiency scores for farms' good output, variable inputs, investments and bad outputs are then computed and compared with those calculated based on a global technology, which benchmarks all farms together. The application focuses on an unbalanced panel of specialised Dutch dairy farms over the period 2009–2016 that contains information on their exact geographical locations. The results suggest that the inefficiency scores exhibit statistically significant differences between the KNN and the global model. Specifically, the inefficiencies are generally deflated when a KNN technology is considered, suggesting that ignoring spatial effects can overestimate inefficiency.","PeriodicalId":14994,"journal":{"name":"Journal of Agricultural Economics","volume":"74 2","pages":"591-607"},"PeriodicalIF":3.4,"publicationDate":"2022-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/1477-9552.12522","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43623408","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Innovation context and technology traits explain heterogeneity across studies of agricultural technology adoption: A meta-analysis 创新背景和技术特征解释了农业技术采用研究的异质性:一项荟萃分析

IF 3.4 2区经济学

Journal of Agricultural Economics Pub Date : 2022-11-22 DOI: 10.1111/1477-9552.12521

Dario Schulz, Jan Börner

引用次数: 2

Effects of agri-environment schemes on farm-level eco-efficiency measures: Empirical evidence from EU countries 农业环境计划对农场级生态效率措施的影响：来自欧盟国家的经验证据

IF 3.4 2区经济学

Journal of Agricultural Economics Pub Date : 2022-11-06 DOI: 10.1111/1477-9552.12520

Amer Ait Sidhoum, Carolin Canessa, Johannes Sauer

引用次数: 6

Diet diversity, malnutrition and health: Evidence from Kenya 饮食多样性、营养不良和健康:来自肯尼亚的证据

IF 3.4 2区经济学

Journal of Agricultural Economics Pub Date : 2022-11-03 DOI: 10.1111/1477-9552.12519

Lilian Korir, Marian Rizov, Eric Ruto

引用次数: 2

The role of social networks in the adoption of competing new technologies in Ghana 社交网络在加纳采用竞争性新技术方面的作用

IF 3.4 2区经济学

Journal of Agricultural Economics Pub Date : 2022-10-19 DOI: 10.1111/1477-9552.12517

Yazeed Abdul Mumin, Awudu Abdulai, Renan Goetz

引用次数: 2

E-commerce and supply chain resilience during COVID-19: Evidence from agricultural input e-stores in China COVID - 19期间的电子商务和供应链弹性:来自中国农业投入品电子商店的证据

IF 3.4 2区经济学

Journal of Agricultural Economics Pub Date : 2022-10-17 DOI: 10.1111/1477-9552.12518

Jianxin Guo, Songqing Jin, Jichun Zhao, Yuhua Li

{"title":"E-commerce and supply chain resilience during COVID-19: Evidence from agricultural input e-stores in China","authors":"Jianxin Guo, Songqing Jin, Jichun Zhao, Yuhua Li","doi":"10.1111/1477-9552.12518","DOIUrl":"10.1111/1477-9552.12518","url":null,"abstract":"COVID-19 has caused major disruptions to agricultural supply chains around the world. Researchers and policy-makers are interested in identifying means to reduce the disruptive effects caused by the pandemic. We investigate the impacts of COVID-19 on the operation of e-commerce stores (in short, e-stores) specialising in agricultural inputs. The difference-in-differences method (DID) is employed to estimate the causal relationship between COVID-19 and online sales of agricultural inputs using data from 54,244 agricultural input e-stores registered in 118 prefecture-level cities across 15 provinces and hosted on two major Chinese e-commerce platforms. The results show that COVID-19 led to a substantial growth in monthly sales of agricultural input e-stores, and this growth of online sales varied across store scales and by types of agricultural inputs. In particular, e-stores selling seeds and seedlings experienced a larger growth in sales than stores selling agricultural machinery and implements, and the mid- and larger-scaled e-stores experienced more growth of sales than micro- and small-scaled e-stores. Further analysis reveals that the growth of online sales of agricultural inputs was driven mainly by an increase in the quantity of customer orders (QCO). The findings of this paper underscore the importance of e-commerce in ensuring the resilience of the agricultural supply chain during the pandemic period.","PeriodicalId":14994,"journal":{"name":"Journal of Agricultural Economics","volume":"74 2","pages":"369-393"},"PeriodicalIF":3.4,"publicationDate":"2022-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/1477-9552.12518","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48148129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

How effective is a fat subsidy? Evidence from edible oil consumption in India 高额补贴的效果如何？来自印度食用油消费的证据

IF 3.4 2区经济学

Journal of Agricultural Economics Pub Date : 2022-10-05 DOI: 10.1111/1477-9552.12510

Jaya Jumrani, J. V. Meenakshi

{"title":"How effective is a fat subsidy? Evidence from edible oil consumption in India","authors":"Jaya Jumrani, J. V. Meenakshi","doi":"10.1111/1477-9552.12510","DOIUrl":"10.1111/1477-9552.12510","url":null,"abstract":"Taxes on fats and sugar-sweetened beverages are deployed in the developed world to encourage healthier diets. How effective might such fiscal instruments be in emerging economies? We evaluate the impacts of a subsidy for palm oil, introduced as part of the public distribution system in three Indian states. Using variants of the difference-in-differences approach, we find that palm oil consumption increased, particularly in rural areas, as a result of the subsidy, and traditional oils were displaced by cheaper palm oil. However, the intervention did not significantly alter overall edible oil consumption. These results are robust to different specifications, alternative estimation samples, and the exclusion of households who may have been potential beneficiaries of other interventions. Impacts were higher in Tamil Nadu than in other states, and were higher for vegetarian households in rural areas. There was only weak evidence of spillover income effects on other food groups. Given India's dual burden of malnutrition, our analysis suggests that fiscal policy interventions have the potential to effectively nudge consumer choices towards healthier edible oil consumption.","PeriodicalId":14994,"journal":{"name":"Journal of Agricultural Economics","volume":"74 2","pages":"327-348"},"PeriodicalIF":3.4,"publicationDate":"2022-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43136779","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Energy productivity and greenhouse gas emission intensity in Dutch dairy farms: A Hicks–Moorsteen by-production approach under non-convexity and convexity with equivalence results 荷兰奶牛场的能源生产率和温室气体排放强度:非凸性和凸性条件下的Hicks-Moorsteen按产量方法

IF 3.4 2区经济学

Journal of Agricultural Economics Pub Date : 2022-10-04 DOI: 10.1111/1477-9552.12511

Frederic Ang, Kristiaan Kerstens, Jafar Sadeghi

{"title":"Energy productivity and greenhouse gas emission intensity in Dutch dairy farms: A Hicks–Moorsteen by-production approach under non-convexity and convexity with equivalence results","authors":"Frederic Ang, Kristiaan Kerstens, Jafar Sadeghi","doi":"10.1111/1477-9552.12511","DOIUrl":"10.1111/1477-9552.12511","url":null,"abstract":"The agricultural sector is currently confronted with the challenge to reduce greenhouse gas (GHG) emissions, whilst maintaining or increasing production. Energy-saving technologies are often proposed as a partial solution, but the evidence on their ability to reduce GHG emissions remains mixed. Production economics provides methodological tools to analyse the nexus of agricultural production, energy use and GHG emissions. Convexity is predominantly maintained in agricultural production economics, despite various theoretical and empirical reasons to question it. Employing non-convex and convex frontier frameworks, this contribution evaluates energy productivity change (the ratio of aggregate output change to energy use change) and GHG emission intensity change (the ratio of GHG emission change to polluting input change) using Hicks-Moorsteen productivity formulations. We consider GHG emissions as by-products of the production process by using a multi-equation model. Given our empirical specification, non-convex and convex Hicks-Moorsteen indices can coincide under certain circumstances, which leads to a series of theoretical equivalence results. The empirical application focuses on 1,510 observations of Dutch dairy farms for the period of 2010–2019. The results show a positive association between energy productivity change and GHG emission intensity change, which calls into question the potential of on-farm, energy-efficiency-increasing measures to reduce GHG emission intensity.","PeriodicalId":14994,"journal":{"name":"Journal of Agricultural Economics","volume":"74 2","pages":"492-509"},"PeriodicalIF":3.4,"publicationDate":"2022-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/1477-9552.12511","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46283041","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"经济学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

New plant engineering techniques, R&D investment and international trade 新工厂工程技术、研发投资和国际贸易

IF 3.4 2区经济学

Journal of Agricultural Economics Pub Date : 2022-10-03 DOI: 10.1111/1477-9552.12516

Stéphan Marette, Anne-Célia Disdier, Anastasia Bodnar, John Beghin

引用次数: 1