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Specialized, Diversified, or Alternative On-farm Enterprises for Small Farms? Examining Returns and Trade-offs using Multinomial Endogenous Switching Regression 小农场的专业化、多元化还是替代性农场企业?使用多项内生转换回归检验收益和权衡
Pub Date : 2021-08-01 DOI: 10.22004/AG.ECON.312692
Renu Ojha, A. Khanal
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引用次数: 0
Agri-food Products Live Streaming: Fad or A Rising Marketing Channel? 农产品直播:时尚还是新兴营销渠道?
Pub Date : 2021-08-01 DOI: 10.22004/AG.ECON.312633
Z. Yang, Xiaoxue Du, Patrick L. Hatzenbuehler, Liang Lu
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引用次数: 0
Preference and Access: Agriculture and Overnutrition in Rural Guatemala 偏好和获取:危地马拉农村的农业和营养过剩
Pub Date : 2021-08-01 DOI: 10.22004/AG.ECON.312756
Joanna Van Asselt, M. Useche
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引用次数: 0
Efficiency Assessment of Illinois Farms Using a Conditional Non-Parametric Approach 伊利诺斯州农场效率评估的条件非参数方法
Pub Date : 2021-08-01 DOI: 10.22004/AG.ECON.312860
J. Tsay, Nicholas D. Paulson
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引用次数: 0
Bike-Share in the Sacramento Region Primarily Substitutes for Car and Walking Trips and Reduces Vehicle Miles Traveled 在萨克拉门托地区,自行车共享主要替代了汽车和步行出行,并减少了车辆行驶里程
Pub Date : 2021-08-01 DOI: 10.7922/G2K935V3
Tatsuya Fukushige, D. Fitch, S. Handy
Author(s): Fukushige, Tatsuya; Fitch, Dillon; Handy, Susan | Abstract: Dock-less, electric bike-share services offer cities a new transportation option with the potential to improve environmental, social, and health outcomes by increasing physical activity and reducing vehicle miles traveled (VMT) and related greenhouse gas emissions. But these benefits accrue only if bike-share use replaces car travel. If bikeshare pulls users from public transit, personal bikes, or walking, the benefits will be limited. Little is known about the factors influencing whether bike-share substitutes for driving. Understanding the degree to which and under what circumstances bike-share use reduces car travel can inform cities’ efforts to meet VMT reduction goals set under California’s Sustainable Communities and Climate Protection Act of 2008 (Senate Bill 375). Researchers at the University of California, Davis collected user surveys and system-wide trip data from a Sacramentoarea dockless e-bike-share program in 2018 and 2019 to examine factors influencing travel mode substitution and estimated system-wide VMT reductions caused by bikeshare use. They developed a model to examine factors influencing bike-share demand and estimated potential VMT reductions for hypothetical expanded service scenarios.
作者:Fukushige, Tatsuya;惠誉,狄龙;摘要:无桩电动共享单车服务为城市提供了一种新的交通选择,通过增加身体活动、减少车辆行驶里程(VMT)和相关温室气体排放,有可能改善环境、社会和健康状况。但这些好处只有在共享单车取代汽车出行的情况下才会产生。如果共享单车把用户从公共交通、个人自行车或步行中拉出来,那么好处将是有限的。人们对影响共享单车是否取代驾驶的因素知之甚少。了解共享单车在多大程度上以及在什么情况下减少了汽车出行,可以为城市实现加州2008年可持续社区和气候保护法案(参议院法案375)所设定的减少车辆行驶里程的目标提供信息。加州大学戴维斯分校的研究人员收集了2018年和2019年萨克拉门托地区无桩电动自行车共享项目的用户调查和全系统出行数据,以研究影响出行方式替代的因素,并估计共享单车使用导致的全系统VMT减少。他们开发了一个模型来检查影响共享单车需求的因素,并估计假设的扩展服务场景下潜在的VMT减少。
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引用次数: 0
Train drain? Access to skilled foreign workers and firms’ provision of training 火车流失?获得熟练的外国工人和公司提供的培训
Pub Date : 2021-08-01 DOI: 10.3929/ETHZ-B-000501254
M. Oswald-Egg, Michael Siegenthaler
Does better access to skilled workers reduce firms' willingness to provide general skills training to unskilled workers? We analyze how the gradual opening of the Swiss labor market to workers from the European Union affected the number of apprenticeship positions that firms provide. We exploit that the availability of skilled workers increased more in firms close to the border because they gained unrestricted access to cross-border workers from neighboring countries. Our Difference-in-Differences estimates suggest that firm-provided training and access to skilled workers are not necessarily substitutes: opening the borders did not have a statistically significant effect on apprenticeship provision. We show theoretically and empirically that the small impact was the consequence of two opposing effects: the greater availability of skilled workers reduced firms' incentive to train because the cost of hiring external labor fell. Positive impacts on firm growth worked in the opposite direction.
获得熟练工人的机会是否降低了企业为非熟练工人提供一般技能培训的意愿?我们分析了瑞士劳动力市场对欧盟工人的逐步开放如何影响企业提供的学徒职位数量。我们发现,靠近边境的公司技术工人的可用性增加更多,因为它们可以不受限制地从邻国获得跨境工人。我们的“差异中的差异”估计表明,企业提供的培训和获得熟练工人并不一定是相互替代的:开放边境对学徒制的提供没有统计学上的显著影响。我们从理论和经验上表明,这种小影响是两种相反效应的结果:技术工人的增加降低了企业培训的动机,因为雇佣外部劳动力的成本下降了。对企业增长的积极影响是相反的。
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引用次数: 1
Consumer Willingness to Reduce Food Waste At Home 消费者减少家中食物浪费的意愿
Pub Date : 2021-08-01 DOI: 10.22004/AG.ECON.312826
Alicia M. Young, J. M. Riley
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引用次数: 0
Fund Flows between the Agricultural Sector and the Non-agricultural Sector in China from 1952 to 2018: A Perspective from Foreign Investment and Labor Transfer 1952 - 2018年中国农业与非农部门资金流动:基于外商投资与劳动力转移的视角
Pub Date : 2021-08-01 DOI: 10.22004/AG.ECON.313340
Qingma Dong
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引用次数: 0
Food Insecurity and Food Production Activities of Older Households 老年家庭的粮食不安全和粮食生产活动
Pub Date : 2021-08-01 DOI: 10.22004/AG.ECON.312801
Joshua Berning, J. Bayham, A. Bonanno, Rebecca Cleary, Pratiksha Baishya
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引用次数: 0
Impact of COVID-19 pandemic on household meal sharing and wild caught animal consumption in China COVID-19大流行对中国家庭用餐共享和野生捕获动物消费的影响
Pub Date : 2021-08-01 DOI: 10.22004/AG.ECON.312757
Yiheng Shu, Qing Chang, Wuyang Hu, Jian Li, Ping Qing, Xuan Chen
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引用次数: 0
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