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Consumer acceptance and valuation of quality‐improved food products derived by genome editing technology. A case study of rice in Vietnam 消费者对通过基因组编辑技术提高食品质量的接受程度和评价。越南水稻案例研究
IF 3.2 3区 经济学 Q1 Agricultural and Biological Sciences Pub Date : 2024-03-15 DOI: 10.1002/agr.21929
Nguyen Thi Hao, Seifeddine Ben Taieb, Masahiro Moritaka, Susumu Fukuda
Unlike genetic modification, genome editing (GE) technologies can be used to yield transgene‐free outcomes, which is an important aspect in promoting consumer acceptance of GE foods. In addition, with the advent of the clustered regularly interspaced short palindromic repeats/Cas9 (CRISPR/Cas9) system, which is known to be exceptional among genome editing tools, GE has numerous potential applications in plant breeding technology to create diverse desirable traits, especially consumer‐targeted traits such as improved product quality and nutrition. It is expected that the GE foods market will overtake that of genetically modified (GM) foods. Although few GE products have been introduced to the market, some studies have already evaluated consumer acceptance and valuation of GE foods in comparison with GM and conventional foods. However, these studies mainly focused on traits relevant to cultivation efficiency and ignored consumer preferences for desirable traits. Further, it has been shown that consumers evaluate GE foods somewhat higher than GM foods; yet, as observed for GM foods, consumers expect a discounted price for GE foods. GE application for consumer‐targeted traits could, however, have a potentially positive effect on consumer acceptance. This study was conducted to evaluate consumer acceptance and valuation of quality‐improved consumer‐targeted GE products. We defined the determinants and estimated the willingness to pay a price premium for GE rice compared to GM and conventional rice by using the double‐bounded contingent valuation method under different information treatments. The survey was conducted in Vietnam, where consumers have not been exposed to information regarding GE via social media that could lead to a biased perspective. This context is ideal for investigating the effect of information provision during the introductory stage of GE products to the market. Our main findings suggest that consumers will widely accept quality‐improved GE foods targeted at consumer preferences, as well as the positive influence of in‐depth information provision on potential consumer acceptance. [EconLit Citations: Q10: Agriculture: General].
与转基因不同,基因组编辑(GE)技术可用于产生不含转基因的结果,这是促进消费者接受 GE 食品的一个重要方面。此外,众所周知,基因组编辑工具中的簇状规则间隔短回文重复序列/Cas9(CRISPR/Cas9)系统是出类拔萃的,随着该系统的出现,基因组编辑技术在植物育种技术中具有众多潜在应用,可创造出多种理想性状,特别是以消费者为目标的性状,如改善产品质量和营养。预计 GE 食品市场将超过转基因食品市场。虽然市场上推出的转基因产品很少,但一些研究已经评估了消费者对转基因食品与转基因食品和传统食品的接受程度和评价。然而,这些研究主要关注与种植效率相关的性状,而忽视了消费者对理想性状的偏好。此外,研究还表明,消费者对 GE 食品的评价略高于转基因食品;然而,正如对转基因食品所观察到的那样,消费者期望 GE 食品的价格会有折扣。然而,针对消费者目标性状的基因工程应用可能会对消费者的接受程度产生潜在的积极影响。本研究旨在评估消费者对以消费者为目标的质量改进型转基因产品的接受度和评价。我们定义了决定因素,并在不同的信息处理条件下,使用双约束或然估价法估算了与转基因大米和传统大米相比,消费者为转基因大米支付溢价的意愿。调查是在越南进行的,那里的消费者没有通过社交媒体接触过有关转基因的信息,这可能会导致他们的观点出现偏差。这种情况非常适合调查在通用电气产品进入市场的初始阶段提供信息的效果。我们的主要研究结果表明,消费者将广泛接受针对消费者偏好的质量改进型 GE 食品,以及深入的信息提供对潜在消费者接受度的积极影响。[经济学引文:Q10:农业:综合]。
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引用次数: 0
The effects of agricultural machinery services and land fragmentation on farmers' straw returning behavior 农机服务和土地分割对农民秸秆还田行为的影响
IF 3.2 3区 经济学 Q1 Agricultural and Biological Sciences Pub Date : 2024-03-14 DOI: 10.1002/agr.21934
Xin Wang, Yanping Song, Wei Huang
Straw returning is important for rural ecological management and sustainable agricultural development. Using farm survey data for Anhui Province, China, in 2020, we applied the double‐hurdle model to investigate the impact of agricultural machinery services and land fragmentation on farmers' straw‐returning behavior, and to explore the relationship between agricultural machinery self‐service and outsourced service. Self‐service had a significant positive effect on farmers' straw‐returning behavior, while outsourced service had a significant positive effect only on degree of adoption. Land fragmentation had a significant negative effect on farmers' straw‐returning behavior, and significantly inhibited the effect of self‐service on adoption decision. Complementarity existed between self‐service and outsourced service in farmers' straw‐returning adoption decision, and the effect was more pronounced among smaller‐scale farmers. There was significant substitutability between self‐service and outsourced service in degree of adoption among larger‐scale farmers. Transfer and integration of rural land, increasing agricultural machinery purchase subsidy, upgrading farmers' self‐service capability, and promoting development of socialized agricultural machinery services should be implemented to promote crop straw returning. EconLit Citations: Q01, Q16.
秸秆还田对农村生态治理和农业可持续发展具有重要意义。利用中国安徽省 2020 年的农户调查数据,运用双兔模型研究了农机服务和土地细碎化对农户秸秆还田行为的影响,并探讨了农机自助服务和外包服务之间的关系。自助服务对农民的秸秆还田行为有显著的正向影响,而外包服务仅对采用程度有显著的正向影响。土地破碎化对农民的秸秆还田行为有显著的负向影响,并显著抑制了自助服务对采用决策的影响。在农户秸秆还田决策中,自助服务与外包服务之间存在互补性,且在规模较小的农户中效果更为明显。在规模较大的农户中,自助服务与外包服务在采用程度上存在明显的替代性。应通过农村土地流转与整合、增加农机购置补贴、提升农民自我服务能力、促进农机社会化服务发展等措施促进农作物秸秆还田。EconLit 引用:Q01, Q16.
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引用次数: 0
Who is willing to pay a premium for leafy greens produced by indoor agriculture? A comparative choice experiment with US consumers 谁愿意为室内农业生产的绿叶菜支付溢价?以美国消费者为对象的比较选择实验
IF 3.2 3区 经济学 Q1 Agricultural and Biological Sciences Pub Date : 2024-03-13 DOI: 10.1002/agr.21931
Joseph Seong, Simone Valle De Souza, April Athnos, H. Christopher Peterson
Indoor agriculture (IA) presents a pathway to producing leafy greens more sustainably by strictly controlling the growing environment, increasing the efficiency of water and land resources use, reducing pesticide application, and enhancing quality characteristics. However, the commercial success of adopting this production method depends on the technology's widespread consumer acceptance paired with a price premium for the improved quality it provides. This paper characterizes American consumer preferences for leafy greens, reports a positive WTP for leafy green attributes, and estimates how consumer attitudes toward IA affect their leafy green choices. The findings are drawn from an online survey of over 2000 US leafy green consumers conducted in 2021. The respondents faced a hypothetical discrete choice experiment (DCE) designed to simulate purchasing leafy green produce. The alternatives presented in the DCE varied over production systems (IA, field farming, or greenhouses) and quality levels (taste, freshness, nutrient level, and food safety). Estimates identify significant preference heterogeneity for leafy green attributes and facilitate classifying consumers into three preference-based groups: “Quality Seekers,” “Price Conscious,” and “Focused Practicals.” Preference variation is significantly greater for production methods than quality characteristics, indicating nascent production method preferences. Results suggest most US consumers view IA positively; however, WTP estimates vary significantly between consumer segments [EconLit Citations: D12, D13].
室内农业(IA)通过严格控制生长环境、提高水和土地资源的利用效率、减少农药施用以及提高质量特性,为更可持续地生产绿叶菜提供了一条途径。然而,采用这种生产方式能否在商业上取得成功,取决于该技术能否得到消费者的广泛认可,以及消费者是否会为该技术所带来的质量提升溢价。本文描述了美国消费者对绿叶菜的偏好,报告了绿叶菜属性的正 WTP,并估计了消费者对 IA 的态度如何影响他们对绿叶菜的选择。研究结果来自 2021 年对 2000 多名美国绿叶菜消费者进行的在线调查。受访者面对的是一个模拟购买绿叶农产品的假设离散选择实验(DCE)。离散选择实验中的替代品因生产系统(IA、田间耕作或温室)和质量水平(口感、新鲜度、营养水平和食品安全)而异。估算结果表明,消费者对绿叶蔬菜属性的偏好存在明显的异质性,并有助于将消费者划分为三个基于偏好的群体:"质量追求者"、"价格敏感者 "和 "专注实用者"。消费者对生产方式的偏好差异明显大于对质量特性的偏好差异,这表明消费者对生产方式的偏好刚刚开始。结果表明,大多数美国消费者对 IA 持积极态度;然而,不同消费者群体的 WTP 估计值差异很大[经济学引文:D12, D13]。
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引用次数: 0
The impact of access to agricultural advisory services on input use and farm performance: Evidence from Senegal 获得农业咨询服务对投入品使用和农场绩效的影响:塞内加尔的证据
IF 3.2 3区 经济学 Q1 Agricultural and Biological Sciences Pub Date : 2024-03-13 DOI: 10.1002/agr.21932
Aymeric Ricome, Amy Faye, Cheickh S. Fall, Sergio Gomez-y-Paloma
Performant agricultural advisory services (AAS) in Africa are crucial for improving the agricultural productivity and food security of the farm households. Yet, evidence-based study on the impacts of AAS on farm performance are scarce, especially in West African countries. This study evaluates the impact of access to AAS on input use and farm performance in Senegal, employing the instrumental variable and control function approaches accounting for selection bias. The approaches are also employed to several sub-samples to see if the impacts are heterogeneous across crop types and fertilizer use, and matching techniques are applied to test the robustness of the results. Results show that the highest positive impact of AAS is on yield, while the impacts on gross margin and improved seeds uptake are very modest. Access to AAS has no effect on fertilizer uptake. It also finds that AAS impacts positively cereal production and farmers using no fertilizer but has no effect on the legume and horticultural crop production and on farmers using fertilizer. Given the Senegalese government and donors have put a lot of effort into developing an efficient AAS system, a consideration of the identified weaknesses is required to improve its efficiency. [EconLit Citations: Q12, Q16]
在非洲,有效的农业咨询服务(AAS)对于提高农业生产率和农户的粮食安全至关重要。然而,有关农业咨询服务对农场绩效影响的循证研究却很少,尤其是在西非国家。本研究采用工具变量法和控制函数法(考虑了选择偏差),评估了塞内加尔获得农业支持服务对投入品使用和农场绩效的影响。此外,还对若干子样本采用了这些方法,以了解不同作物类型和化肥使用情况下的影响是否存在差异,并采用匹配技术来检验结果的稳健性。结果表明,农田灌溉服务对产量的积极影响最大,而对毛利和改良种子使用率的影响则非常有限。获得农田灌溉服务对化肥使用量没有影响。研究还发现,农田灌溉服务对谷物生产和不使用化肥的农民有积极影响,但对豆类和园艺作物生产以及使用化肥的农民没有影响。鉴于塞内加尔政府和捐助方为发展高效的农业支持系统付出了大量努力,因此需要考虑已发现的不足之处,以提高其效率。[经济文献引用:问题 12、问题 16]
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引用次数: 0
The impact of the agricultural digital economy on China's agricultural export growth: Examining mechanisms from supply- and demand-side path perspectives 农业数字经济对中国农产品出口增长的影响:从供给侧和需求侧路径视角考察机制
IF 3.2 3区 经济学 Q1 Agricultural and Biological Sciences Pub Date : 2024-03-12 DOI: 10.1002/agr.21930
Yuchen Liu, Yinguo Dong, Hui Zhou
The deep integration of the agricultural digital economy and foreign trade is an important driving force for promoting high–quality economic development. Based on a theoretical analysis of the impact mechanisms of the agricultural digital economy on agricultural exports, this study empirically examines the impact and mechanism of the agricultural digital economy on agricultural exports using Chinese agricultural export data from 2011 to 2016. The relevant findings are threefold. (1) The agricultural digital economy significantly enhances the growth of China's agricultural exports, and the result remains robust after a series of robustness tests. (2) The heterogeneity analysis reveals that the agricultural digital economy has a greater role in promoting exports from quality frontier firms, primary agricultural products and exports to developed countries. (3) The mechanism analysis demonstrates that the agricultural digital economy promotes exports of agricultural products on the supply side most strongly through quality–enhancing and the information cost effects, improving product quality and reducing information expenditure to achieve export growth. On the demand side, domestic demand traction and external–demand creation effects exert a local market effect and stimulate import market demand to promote export growth. [EconLit Citations: F746.12].
农业数字经济与对外贸易的深度融合是推动经济高质量发展的重要动力。本研究在对农业数字经济对农产品出口影响机制进行理论分析的基础上,利用2011年至2016年中国农产品出口数据,实证检验了农业数字经济对农产品出口的影响和机制。相关结论有三方面。(1)农业数字经济显著促进了中国农产品出口的增长,经过一系列稳健性检验,结果依然稳健。(2)异质性分析表明,农业数字经济对优质前沿企业出口、初级农产品出口和对发达国家出口的促进作用更大。(3)机理分析表明,农业数字经济在供给侧通过质量提升效应和信息成本效应对农产品出口的促进作用最大,提高产品质量和减少信息支出实现出口增长。在需求侧,内需牵引效应和外需创造效应发挥本地市场效应,刺激进口市场需求,促进出口增长。[经济学引文:F746.12]。
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引用次数: 0
Effects of health claims on demand structure and market power: The case of the yogurt market in Japan 健康诉求对需求结构和市场力量的影响:日本酸奶市场案例
IF 3.2 3区 经济学 Q1 Agricultural and Biological Sciences Pub Date : 2024-03-08 DOI: 10.1002/agr.21928
Daum Kim, Kohya Takahashi, Koshi Maeda
This study aims to clarify the effects of health claims on consumer purchasing behavior and market power, using the Japanese yogurt market as a case study. For the analysis, the Berry, Levinsohn, and Pakes model was applied for estimations using product-level purchasing data. The main analysis results are as follows. First, consumers prefer brands with lower prices, higher protein, lower fat, lower carbohydrates, and foods for specified health uses (FOSHU). Second, from the value of own-price elasticity of market shares, the higher the price of a brand, the more sensitively consumers respond to price. From the value of the cross-price elasticity of market shares, strong competition exists among FOSHU brands, and the price of R-1 drink types tends to significantly impact the market shares of brands other than FOSHU brands. Third, the market power of each brand tends to be higher for lower-priced brands and lower for higher-priced brands. In terms of market power by manufacturer, Meiji has the highest both the weighted average and median values. However, both the weighted average and median values of Danone Japan are relatively lower than those of other manufacturers. Fourth, in terms of each brand's market power, brands with low prices and FOSHU labeling have high market power. These findings suggest that the acquisition of FOSHU brands in the Japanese yogurt market does not lead to a decline in market power (increase in price) and has positive effects for manufacturers, such as an increased market share.
本研究以日本酸奶市场为例,旨在阐明健康声称对消费者购买行为和市场力量的影响。在分析中,采用了 Berry、Levinsohn 和 Pakes 模型,利用产品层面的购买数据进行估计。主要分析结果如下。首先,消费者偏好价格较低、蛋白质含量较高、脂肪含量较低、碳水化合物含量较低的品牌,以及特定健康用途食品(FOSHU)。其次,从市场份额的自有价格弹性值来看,品牌价格越高,消费者对价格的反应越敏感。从市场份额的交叉价格弹性值来看,FOSHU 品牌之间存在激烈竞争,R-1 饮料类型的价格往往会对 FOSHU 品牌以外的其他品牌的市场份额产生显著影响。第三,各品牌的市场力量往往是低价品牌较高,高价品牌较低。就制造商的市场力量而言,明治的加权平均值和中位值都是最高的。然而,日本达能的加权平均值和中位值都相对低于其他制造商。第四,从各品牌的市场力量来看,价格低且贴有 FOSHU 标签的品牌具有较高的市场力量。这些研究结果表明,在日本酸奶市场收购 FOSHU 品牌并不会导致市场支配力下降(价格上涨),反而会对制造商产生积极影响,如增加市场份额。
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引用次数: 0
Rural tourism promotion policy and rural hospitality enterprises performance: Empirical evidence from Japan 乡村旅游促进政策与乡村酒店企业绩效:日本的经验证据
IF 3.2 3区 经济学 Q1 Agricultural and Biological Sciences Pub Date : 2024-03-06 DOI: 10.1002/agr.21927
Yessica C. Y. Chung, Motoi Kusadokoro, Hung‐Hao Chang, Yukinobu Kitamura
Increased tourism demand provides an opportunity to boost rural development. This paper examines the impact of rural tourism policy reform on hospitality and restaurant enterprises in rural areas in Japan. In early 2016, the Japanese government introduced a policy to encourage the participation of nonfarm enterprises in the rural hospitality industry. Using a nationally representative dataset of rural hospitality enterprises in Japan, we employ the difference‐in‐differences method to assess the causal effects of the policy on the sales value, number of business days, and labor productivity of hospitality enterprises and restaurants in rural areas. We find that this reform resulted in a 15.6% increase and a 5.1% decrease in the sales value of nonfarm‐owned and farm‐owned homestay enterprises, respectively. Moreover, changes in the number of business days and labor productivity can be associated with the policy effect. We also find a significant policy effect on nonfarm‐owned restaurants. [EconLit Citations: Q12, Q13].
旅游需求的增加为促进农村发展提供了机遇。本文研究了乡村旅游政策改革对日本乡村地区酒店和餐饮企业的影响。2016 年初,日本政府出台了鼓励非农企业参与乡村餐饮业的政策。我们利用具有全国代表性的日本农村接待企业数据集,采用差分法评估了该政策对农村地区接待企业和餐馆的销售额、营业天数和劳动生产率的因果影响。我们发现,这项改革使非农所有的民宿企业和农户所有的民宿企业的销售额分别增加了 15.6%和减少了 5.1%。此外,经营天数和劳动生产率的变化也与政策效应有关。我们还发现,政策对非农所有的餐馆也有明显的影响。[经济学引文:Q12, Q13]。
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引用次数: 0
Differential taxation in agricultural credit market 农业信贷市场的差别税收
IF 3.2 3区 经济学 Q1 Agricultural and Biological Sciences Pub Date : 2024-02-26 DOI: 10.1002/agr.21926
Madhav Regmi, Allen M. Featherstone
This study examines whether the market competitiveness of farm loan suppliers is affected by the US tax policy for the farm credit system (FCS) and its potential spillover on the farmers' cost of borrowing. We exploit the variation in the corporate income tax rate to estimate its relationship with the farm debt share of the FCS and the potential spillover effect on the estimated cost of borrowing for agricultural loans. Results suggest that a 10% rise in the state (federal) tax rate is associated with an increase in FCS's total farm debt market share by 1.76% (3.76%). A 10% rise in the FCS total farm debt market share tends to increase the cost of borrowing on agricultural loans by 0.06%. Overall, the findings imply that favorable tax treatment could increase FCS' competitiveness in the agricultural lending market. Also, an increase in the interest rate on farm debt is correlated with the increasing market share of FCS in the agricultural credit market. [EconLit Citations: Q14, N22, H2, H7, G21].
本研究探讨了农业贷款供应商的市场竞争力是否受到美国农业信贷系统(FCS)税收政策的影响,以及该政策对农民借贷成本的潜在溢出效应。我们利用企业所得税税率的变化来估算其与 FCS 的农场债务份额之间的关系,以及对农业贷款借贷成本估算的潜在溢出效应。结果表明,州(联邦)税率每上升 10%,金融服务公司的总农业债务市场份额就会增加 1.76% (3.76%)。联邦统计局的农场债务市场份额每增加 10%,农业贷款的借贷成本就会增加 0.06%。总之,研究结果表明,优惠的税收待遇可以提高金融服务公司在农业贷款市场上的竞争力。此外,农业债务利率的增加与金融服务公司在农业信贷市场中的市场份额增加相关。[经济文献引用:Q14, N22, H2, H7, G21]。
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引用次数: 0
Measuring specialty crop grower willingness to pay for genetic modification and genetic editing 衡量特种作物种植者为转基因和基因编辑付费的意愿
IF 3.2 3区 经济学 Q1 Agricultural and Biological Sciences Pub Date : 2024-02-21 DOI: 10.1002/agr.21911
Marie Abbey, Alan G. Smith, Chengyan Yue, Corissa Marson, Yufeng Lai, Carrie Stowers
In contrast to the widespread adoption of agricultural commodities modified using biotechnology, the adoption rate of bioengineered specialty crops by growers remains low. The use of bioengineered crops has been controversial since their introduction in the 1990s due to concerns about their potentially harmful effects to human health, the environment, and other socioeconomic issues. To identify grower preferences, perceived opportunities, and barriers to growing bioengineered crops, we surveyed Minnesota specialty crop growers using a web-based survey. The survey measured whether adoption rates are influenced by the specific trait of the modification, the method of bioengineering (genetically modified [GM] vs. genetically edited [GE]), or the end use of the crop being grown (ornamental vs food). Overall willingness-to-pay for both GM and GE potatoes was significantly lower than for conventional potatoes, and nearly a quarter (25%) of our respondents never chose a bioengineered option no matter the benefits. Results were similar for petunias, but fewer respondents (18%) refused to consider the bioengineering option. The type of bioengineering did not have as significant an impact on adoption rate as price or end use. The bioengineered ornamental crop had a higher willingness to adopt than the bioengineered food crop. [EconLit Citations: Q160 Agricultural R & D; Agricultural Technology; Biofuels; Agricultural Extension Services. O330 Technological Change: Choices and Consequences; Diffusion Processes].
与广泛采用生物技术改造农产品形成鲜明对比的是,种植者对生物工程特种作物的采用率仍然很低。由于担心生物工程作物可能对人类健康、环境和其他社会经济问题产生有害影响,自 20 世纪 90 年代引入以来,生物工程作物的使用一直备受争议。为了确定种植者的偏好、感知到的机遇以及种植生物工程作物的障碍,我们利用网络调查对明尼苏达州特种作物种植者进行了调查。该调查衡量了采用率是否受改良的具体性状、生物工程方法(转基因 [GM] 与基因编辑 [GE])或所种植作物的最终用途(观赏与食用)的影响。对转基因马铃薯和基因工程马铃薯的总体支付意愿明显低于对传统马铃薯的支付意愿,近四分之一(25%)的受访者无论收益如何都不会选择生物工程选项。牵牛花的结果与此类似,但拒绝考虑生物工程方案的受访者较少(18%)。生物工程的类型对采用率的影响不如价格或最终用途大。生物工程观赏作物的采用意愿高于生物工程粮食作物。[EconLit引文:Q160 农业研发;农业技术;生物燃料;农业推广服务。O330 技术变革:选择与后果;扩散过程]。
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引用次数: 0
Agri-food trade liberalization, export prices, and quality upgrading: Evidence from the meat and chocolate sectors in OECD countries 农业食品贸易自由化、出口价格和质量升级:经合组织国家肉类和巧克力行业的证据
IF 3.2 3区 经济学 Q1 Agricultural and Biological Sciences Pub Date : 2024-02-20 DOI: 10.1002/agr.21925
Aristide Bonsdaouêndé Valea, Lota D. Tamini, Damien Rousselière
This article examines the impact of trade liberalization on export prices and quality. The article is innovative in two respects. First, unlike previous studies, it considers both input and output tariffs simultaneously in a theoretical model. Second, it empirically tests the effects of a combination of specific and ad-valorem tariffs on quality improvement. The theoretical analysis suggests that when firms face reduced output and input tariffs, they tend to improve their export quality and increase export prices. Using export data from 33 OECD countries, the empirical analysis demonstrates that output tariff reduction increases export quality but decreases prices. However, the effects of input tariff reduction on price and quality depend on product differentiation. The results also indicate that the presence of specific tariffs increase product quality while amplifying the positive effects of the reduction of ad-valorem tariffs on quality. This implies that to improve export quality, reducing ad-valorem tariffs is more efficient than a specific tariff. [EconLit Citations: F12, F14, Q17].
本文探讨了贸易自由化对出口价格和质量的影响。文章在两个方面具有创新性。首先,与以往的研究不同,它在理论模型中同时考虑了投入和产出关税。其次,文章通过实证检验了特定关税和从价关税相结合对质量提高的影响。理论分析表明,当企业面临产出和投入关税降低时,它们倾向于提高出口质量和出口价格。利用 33 个经合组织国家的出口数据进行的实证分析表明,降低产出关税会提高出口质量,但会降低价格。然而,降低投入品关税对价格和质量的影响取决于产品差异。结果还表明,特定关税的存在提高了产品质量,同时放大了从价关税降低对质量的积极影响。这意味着,要提高出口质量,降低从价关税比特定关税更有效。[经济学引文:F12、F14、Q17]。
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引用次数: 0
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Agribusiness
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