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OUP accepted manuscript OUP接受稿件
Q open Pub Date : 2022-01-01 DOI: 10.1093/qopen/qoac004
{"title":"OUP accepted manuscript","authors":"","doi":"10.1093/qopen/qoac004","DOIUrl":"https://doi.org/10.1093/qopen/qoac004","url":null,"abstract":"","PeriodicalId":87350,"journal":{"name":"Q open","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"61067097","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Correction to: The role of contractors in the uptake of precision farming—A spatial economic analysis 修正:承包商在采用精准农业中的作用——空间经济分析
Q open Pub Date : 2022-01-01 DOI: 10.1093/qopen/qoac014
{"title":"Correction to: The role of contractors in the uptake of precision farming—A spatial economic analysis","authors":"","doi":"10.1093/qopen/qoac014","DOIUrl":"https://doi.org/10.1093/qopen/qoac014","url":null,"abstract":"","PeriodicalId":87350,"journal":{"name":"Q open","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"61067614","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
OUP accepted manuscript OUP接受稿件
Q open Pub Date : 2022-01-01 DOI: 10.1093/qopen/qoac007
{"title":"OUP accepted manuscript","authors":"","doi":"10.1093/qopen/qoac007","DOIUrl":"https://doi.org/10.1093/qopen/qoac007","url":null,"abstract":"","PeriodicalId":87350,"journal":{"name":"Q open","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"61066684","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
OUP accepted manuscript OUP接受稿件
Q open Pub Date : 2022-01-01 DOI: 10.1093/qopen/qoac009
{"title":"OUP accepted manuscript","authors":"","doi":"10.1093/qopen/qoac009","DOIUrl":"https://doi.org/10.1093/qopen/qoac009","url":null,"abstract":"","PeriodicalId":87350,"journal":{"name":"Q open","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"61066858","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
OUP accepted manuscript OUP接受稿件
Q open Pub Date : 2022-01-01 DOI: 10.1093/qopen/qoac015
{"title":"OUP accepted manuscript","authors":"","doi":"10.1093/qopen/qoac015","DOIUrl":"https://doi.org/10.1093/qopen/qoac015","url":null,"abstract":"","PeriodicalId":87350,"journal":{"name":"Q open","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"61067174","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The access to CETA quotas: Extending CGE models with a market for quota licenses 获得CETA配额:通过配额许可市场扩展CGE模型
Q open Pub Date : 2022-01-01 DOI: 10.1093/qopen/qoac019
Tatjana Döbeling
{"title":"The access to CETA quotas: Extending CGE models with a market for quota licenses","authors":"Tatjana Döbeling","doi":"10.1093/qopen/qoac019","DOIUrl":"https://doi.org/10.1093/qopen/qoac019","url":null,"abstract":"We analyze the market dynamics that are caused by tariff-rate quotas, particularly the effects of quota license allocation between heterogeneous commodities at the tariff line level. The allocation is endogenously modeled with a mixed complementarity problem approach for the case of the Comprehensive Economic and Trade Agreement between Canada and the European Union. The model results are compared both with alternative models that resemble pre-existing approaches and with the real trade figures that have been collected since the trade agreement's implementation. Our analysis shows a bias toward more expensive commodities if the shadow value of a quota license manifests in a secondary license market. The same quota can thereby be binding to some commodities but not so for others. This feature of quotas can be crucial for policymakers who are concerned about price effects or who want to understand the effects of lumping together commodities of different quality in one quota.","PeriodicalId":87350,"journal":{"name":"Q open","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"61067220","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Safeguard measures and fresh produce trade: The case of U.S. blueberry imports 保障措施与新鲜农产品贸易：以美国蓝莓进口为例
Q open Pub Date : 2021-09-27 DOI: 10.1093/qopen/qoab018
A. Muhammad, Amanda M. Countryman
{"title":"Safeguard measures and fresh produce trade: The case of U.S. blueberry imports","authors":"A. Muhammad, Amanda M. Countryman","doi":"10.1093/qopen/qoab018","DOIUrl":"https://doi.org/10.1093/qopen/qoab018","url":null,"abstract":"\u0000 Safeguard measures are used to limit excessive import growth and protect domestic producers from unfair import competition. The global safeguard investigation for blueberries highlights these concerns and raises questions about the relationship between imports, prices, and the well-being of U.S. producers. Although the U.S. International Trade Commission (USITC) ruled that imports have not caused serious injury to U.S. blueberry producers, it was important to further examine this issue. In this study, we employ an inverse demand model and dynamic Vector Autoregressive (VAR) procedure linking source-specific fresh blueberry imports from countries like Mexico and Chile to U.S. blueberry prices. Our results mostly support the USITC ruling. Results indicate that declines in U.S. prices are small when compared to the level of import growth. Impulse response functions indicate that import price shocks are not long lasting.","PeriodicalId":87350,"journal":{"name":"Q open","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47319772","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Revisiting the link between cereal diversity and production in Ethiopia 回顾埃塞俄比亚谷物多样性与生产之间的联系
Q open Pub Date : 2021-09-13 DOI: 10.1093/qopen/qoab017
B. Groom, Francisco Lucas de Lima Fontes
{"title":"Revisiting the link between cereal diversity and production in Ethiopia","authors":"B. Groom, Francisco Lucas de Lima Fontes","doi":"10.1093/qopen/qoab017","DOIUrl":"https://doi.org/10.1093/qopen/qoab017","url":null,"abstract":"\u0000 Studies show that cereal diversity positively affects mean yields, suggesting increased crop diversity as a means of increasing production (Di Falco and Chavas 2009, Baumg¨artner and Quaas 2010). In practice though, agricultural development has relied on non- diverse systems. Using the Ethiopian Rural Household Survey panel we revisit this para- dox and disentangle the effects of agro-ecological zones and composition of crop diversity. We find a positive effect of greater cereal diversity on cereal production, but mostly in specific agro-ecological zones and for households who diversify away from a particular low- productivity crop: teff. These results indicate that the scope of cereal diversity to drive increases in output may be limited. Similar to recent studies of biodiversity—ecosystem function relationships (e.g. Jochum et al., 2020), the results suggest that the composition of diverse systems can be more important than the measured diversity itself. In the case of cereal crops in Ethiopia, differences in the yields of particular cereals in the crop mix explain the diversity effect, rather than diversity alone. Since some combinations of crops add to productivity but others do not, productivity related crop choice may not guarantee in situ conservation of crop-diversity on its own. Alternative conservation solutions may well be needed for that.","PeriodicalId":87350,"journal":{"name":"Q open","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46148619","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Risk, Risk Aversion, and Agricultural Technology Adoption ─ A Novel Valuation Method Based on Real Options and Inverse Stochastic Dominance 风险、风险厌恶与农业技术采用──一种基于实物期权与逆随机优势的评估新方法
Q open Pub Date : 2021-08-24 DOI: 10.1093/qopen/qoab016
A. Spiegel, W. Britz, R. Finger
{"title":"Risk, Risk Aversion, and Agricultural Technology Adoption ─ A Novel Valuation Method Based on Real Options and Inverse Stochastic Dominance","authors":"A. Spiegel, W. Britz, R. Finger","doi":"10.1093/qopen/qoab016","DOIUrl":"https://doi.org/10.1093/qopen/qoab016","url":null,"abstract":"\u0000 Risk and risk preferences belong to the key determinants of investment-based technology adoption in agriculture. We develop and apply a novel approach in which an inverse second order stochastic dominance approach is integrated into a stochastic dynamic farm-level model to quantify the effect of both risk and risk aversion on the timing and scale of agricultural technology adoption. Our illustrative example on short rotation coppice adoption shows that risk aversion leads to technology adoption that takes place earlier, but to a smaller extent. In contrast, higher levels of risk exposure lead to postponed but overall larger adoption. These effects would be obscured if technology adoption is not analyzed in a farm-scale context or considered as a now-or-never decision, the still dominant approach in the literature.","PeriodicalId":87350,"journal":{"name":"Q open","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46976104","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
Trading off consumer preferences induced by cultural and colonial heritage: Lessons from New Rice for Africa (NERICA) in Casamance, Senegal 权衡由文化和殖民遗产引起的消费者偏好:塞内加尔卡萨芒斯非洲新水稻项目的经验教训
Q open Pub Date : 2021-08-05 DOI: 10.1093/qopen/qoab014
Kofi Britwum, M. Demont
{"title":"Trading off consumer preferences induced by cultural and colonial heritage: Lessons from New Rice for Africa (NERICA) in Casamance, Senegal","authors":"Kofi Britwum, M. Demont","doi":"10.1093/qopen/qoab014","DOIUrl":"https://doi.org/10.1093/qopen/qoab014","url":null,"abstract":"\u0000 Breeders face the challenging task of tailoring crop varieties to complex consumer preferences shaped through culture and history. The Casamance rice sector in Senegal is an interesting case; while the region is endowed with a 3,000-year-old cultural heritage of African rice domestication, it has also been exposed to century-long colonial import substitution policies, leading to massive influx of cheap, broken Asian rice. Markets have responded to the amalgam of consumer preferences that have emerged as a result of cultural and colonial heritage by offering three standard grades of rice: 100 per cent broken, semi-broken (35–60 per cent broken), and unbroken. To disentangle the trade-off between indigenous and ‘imported’ traits and inform breeding priorities, we conducted framed field experiments with urban women in the Casamance. We assessed consumers’ revealed price premiums for replacing imported, broken Asian rice with three locally produced New Rice for Africa (NERICA) hybrids between African and Asian rice: (i) broken, fragrant NERICA 1; (ii) broken NERICA 4; and (iii) unbroken NERICA 6 featuring medium/bold grain shape. Consumers with genealogical lineages tracing back to the original domesticators of African rice put significantly higher value on locally produced NERICAs relative to immigrants from the north and northeast, who put premiums on ‘imported’ traits such as rice fragrance. Driven by preferences for both broken and unbroken rice, NERICA 6 outcompeted all other varieties as it mimics the grain shape of semi-broken rice while being unbroken. The latter exemplifies how breeders can strike an optimal compromise in the trade-off between cultural and colonial heritage-induced preferences.","PeriodicalId":87350,"journal":{"name":"Q open","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48606433","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
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