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Essays on the Economics of Pesticides in California
Essays on the Economics of Pesticides in California
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202103704
- ISBN
- 9798290613925
- DDC
- 363.7
- 저자명
- Zheng, Yanan.
- 서명/저자
- Essays on the Economics of Pesticides in California
- 발행사항
- [Sl] : University of California, Davis, 2025
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2025
- 형태사항
- 271 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 87-01, Section: A.
- 주기사항
- Advisor: Goodhue, Rachael.
- 학위논문주기
- Thesis (Ph.D.)--University of California, Davis, 2025.
- 초록/해제
- 요약Pesticides are used by growers to suppress pest outbreaks and enhance crop productivity. An individual grower's pest management decisions can be influenced by factors including the intensity of a pest infestation, pesticide resistance management requirements, government regulations restricting the use of certain pest control strategies and, because pests are mobile, pest management practices undertaken by neighbors. This dissertation explores the effects of various factors on individual growers' pesticide application decisions and corresponding profitability and environmental quality in the San Joaquin Valley (SJV) of California.The first two chapters explore pesticide use in cotton for lygus control in California's SJV. I have constructed a dataset that integrates field-level pesticide use, field location, and crop production data for the period from 2010 to 2019. It enables me to examine spatial-temporal-crop interactions of pesticide use across fields. To the best of my knowledge, this is the first study to do so. Based on these relationships, Chapter 1 examines the economic value of the cross-crop spillover effect of pesticide use. One of my major contributions is the differentiation of positive externalities from cross-crop benefits. Based on farmer identification information included in the pesticide use dataset, I am able to determine whether the effect is captured by the farmer applying the pesticide (cross-crop benefit) or another farmer (positive externality). I derive the reduction in cotton pesticide costs resulting from pesticide applications to nearby alfalfa and safflower fields. I find that pesticide use in alfalfa and safflower yielded average savings of $2.52 million (in 2019 US dollars) per year in cotton pesticide costs, equivalent to 32.7% of the total lygus treatment costs and 0.5% of cotton revenue in the SJV in 2019. Positive externalities accounted for $0.59 million (23.4%), while cross-crop benefits contributed the remaining $1.93 million.The data I use in Chapter 1 do not enable me to estimate the benefit of increased cotton yields due to pesticide applications to the other crops. To do so, I develop a bioeconomic system simulation model in Chapter 2. Specifically, I simulate the daily development of lygus in alfalfa, safflower, and cotton fields to investigate the economic value of the reduction in cotton yield losses due to pesticide applications on the other crops. I find that the average annual economic value due to reduced yield damage was $3.54 million (in 2019 US dollars), equivalent to 46.0% of the cost of lygus treatment and 0.8% of cotton revenue in 2019. Positive externalities accounted for $1.39 million (39.4%). The remaining $2.15 million accrued to cotton growers who grew at least one of the other two crops and applied pesticides that reduced lygus migrations into their own cotton crops. Together, the first two chapters provide a complete evaluation of how pesticide applications in these crops interact and the economic benefit captured by cotton farmers. Pesticide applications to alfalfa and safflower in the SJV generated a total annual benefit of $6.06 million for cotton production, equal to 1.5% of cotton revenue in the region in 2019.Chapter 3 explores a pesticide regulation implemented in 2015 that restricts the use of certain pesticide products during the peak ozone season (May to October) in the SJV to reduce volatile organic compound (VOC) emissions. The regulation applies to seven major crops: alfalfa, almond, citrus, cotton, grape, pistachio, and walnut. Using monthly and annual data on pesticide use from 2010 to 2018 and a regression discontinuity design, I evaluate the regulation's effectiveness in reducing peak-season VOC emissions and its impacts on hazards to other environmental quality and human health considerations, including air, water, soil, pollinator health, and health of consumers and farm applicators. The direct causal inference result suggests that field-level VOC emissions during the peak season declined by 25.8%. However, I observe year-round increases in almost all other environmental and health hazard indicators post-implementation, suggesting that the regulation reduced VOC emissions at the expense of increased hazards to other environmental and health considerations. The regulation led to a substantial increase in pest management costs. The annual increase was $388.39 million (in 2022 dollars), which is equal to 2.4% of total revenues from the regulated crops in the SJV in 2022.Collectively, this dissertation provides important insights into external impacts of growers' pest management strategies. The findings also offer valuable guidance for designing more effective policies that consider the economic costs of growers' pest-management adjustments and the multi-dimensional nature of environmental quality.
- 키워드
- Pesticide use
- 기타저자
- University of California, Davis Agricultural and Resource Economics
- 기본자료저록
- Dissertations Abstracts International. 87-01A.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■020 ▼a9798290613925
■035 ▼a(MiAaPQ)AAI32113437
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a363.7
■1001 ▼aZheng, Yanan.
■24510▼aEssays on the Economics of Pesticides in California
■260 ▼a[Sl]▼bUniversity of California, Davis▼c2025
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2025
■300 ▼a271 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 87-01, Section: A.
■500 ▼aAdvisor: Goodhue, Rachael.
■5021 ▼aThesis (Ph.D.)--University of California, Davis, 2025.
■520 ▼aPesticides are used by growers to suppress pest outbreaks and enhance crop productivity. An individual grower's pest management decisions can be influenced by factors including the intensity of a pest infestation, pesticide resistance management requirements, government regulations restricting the use of certain pest control strategies and, because pests are mobile, pest management practices undertaken by neighbors. This dissertation explores the effects of various factors on individual growers' pesticide application decisions and corresponding profitability and environmental quality in the San Joaquin Valley (SJV) of California.The first two chapters explore pesticide use in cotton for lygus control in California's SJV. I have constructed a dataset that integrates field-level pesticide use, field location, and crop production data for the period from 2010 to 2019. It enables me to examine spatial-temporal-crop interactions of pesticide use across fields. To the best of my knowledge, this is the first study to do so. Based on these relationships, Chapter 1 examines the economic value of the cross-crop spillover effect of pesticide use. One of my major contributions is the differentiation of positive externalities from cross-crop benefits. Based on farmer identification information included in the pesticide use dataset, I am able to determine whether the effect is captured by the farmer applying the pesticide (cross-crop benefit) or another farmer (positive externality). I derive the reduction in cotton pesticide costs resulting from pesticide applications to nearby alfalfa and safflower fields. I find that pesticide use in alfalfa and safflower yielded average savings of $2.52 million (in 2019 US dollars) per year in cotton pesticide costs, equivalent to 32.7% of the total lygus treatment costs and 0.5% of cotton revenue in the SJV in 2019. Positive externalities accounted for $0.59 million (23.4%), while cross-crop benefits contributed the remaining $1.93 million.The data I use in Chapter 1 do not enable me to estimate the benefit of increased cotton yields due to pesticide applications to the other crops. To do so, I develop a bioeconomic system simulation model in Chapter 2. Specifically, I simulate the daily development of lygus in alfalfa, safflower, and cotton fields to investigate the economic value of the reduction in cotton yield losses due to pesticide applications on the other crops. I find that the average annual economic value due to reduced yield damage was $3.54 million (in 2019 US dollars), equivalent to 46.0% of the cost of lygus treatment and 0.8% of cotton revenue in 2019. Positive externalities accounted for $1.39 million (39.4%). The remaining $2.15 million accrued to cotton growers who grew at least one of the other two crops and applied pesticides that reduced lygus migrations into their own cotton crops. Together, the first two chapters provide a complete evaluation of how pesticide applications in these crops interact and the economic benefit captured by cotton farmers. Pesticide applications to alfalfa and safflower in the SJV generated a total annual benefit of $6.06 million for cotton production, equal to 1.5% of cotton revenue in the region in 2019.Chapter 3 explores a pesticide regulation implemented in 2015 that restricts the use of certain pesticide products during the peak ozone season (May to October) in the SJV to reduce volatile organic compound (VOC) emissions. The regulation applies to seven major crops: alfalfa, almond, citrus, cotton, grape, pistachio, and walnut. Using monthly and annual data on pesticide use from 2010 to 2018 and a regression discontinuity design, I evaluate the regulation's effectiveness in reducing peak-season VOC emissions and its impacts on hazards to other environmental quality and human health considerations, including air, water, soil, pollinator health, and health of consumers and farm applicators. The direct causal inference result suggests that field-level VOC emissions during the peak season declined by 25.8%. However, I observe year-round increases in almost all other environmental and health hazard indicators post-implementation, suggesting that the regulation reduced VOC emissions at the expense of increased hazards to other environmental and health considerations. The regulation led to a substantial increase in pest management costs. The annual increase was $388.39 million (in 2022 dollars), which is equal to 2.4% of total revenues from the regulated crops in the SJV in 2022.Collectively, this dissertation provides important insights into external impacts of growers' pest management strategies. The findings also offer valuable guidance for designing more effective policies that consider the economic costs of growers' pest-management adjustments and the multi-dimensional nature of environmental quality.
■590 ▼aSchool code: 0029.
■653 ▼aEnvironmental impacts
■653 ▼aPesticide use
■653 ▼aVolatile organic compounds
■653 ▼aPollinator health
■690 ▼a0503
■690 ▼a0438
■690 ▼a0501
■71020▼aUniversity of California, Davis▼bAgricultural and Resource Economics.
■7730 ▼tDissertations Abstracts International▼g87-01A.
■790 ▼a0029
■791 ▼aPh.D.
■792 ▼a2025
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17358247▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.


