首页 > 最新文献

Revue d’études en Agriculture et Environnement最新文献

英文 中文
An option on the average European futures prices for an efficient hog producer risk management 对欧洲平均期货价格的期权进行了有效的生猪生产者风险管理
Pub Date : 1900-01-01 DOI: 10.3406/reae.2010.1937
Martial Phélippé-Guinvarc'h, J. Cordier
The volatility of hog prices is high compared to most agricultural commodities. However, European hog producers do not benefit from any agricultural policy support. Through the continuous production process and induced selling activity on spot markets, producers benefit from a natural moving average product pricing. In addition, asymmetric price risk management is able to increase the expected utility of risk adverse hog producers. But, if there is a futures contract at the European Exchange (EUREX), there is no option market and as a consequence no derivative contracts on the European hog market. The article is presenting how financial intermediaries could offer an innovative derivative contract to complement the “naturall ” steady price of the French hog producers.
与大多数农产品相比,生猪价格波动较大。然而,欧洲生猪生产者并没有从任何农业政策支持中受益。通过持续的生产过程和现货市场上的诱导销售活动,生产者从自然的移动平均产品定价中受益。此外,不对称价格风险管理能够增加风险不利生猪生产者的预期效用。但是,如果在欧洲交易所(EUREX)有期货合约,就没有期权市场,因此欧洲生猪市场上没有衍生品合约。本文介绍了金融中介机构如何提供一种创新的衍生品合约,以补充法国生猪生产商的“自然”稳定价格。
{"title":"An option on the average European futures prices for an efficient hog producer risk management","authors":"Martial Phélippé-Guinvarc'h, J. Cordier","doi":"10.3406/reae.2010.1937","DOIUrl":"https://doi.org/10.3406/reae.2010.1937","url":null,"abstract":"The volatility of hog prices is high compared to most agricultural commodities. However, European hog producers do not benefit from any agricultural policy support. Through the continuous production process and induced selling activity on spot markets, producers benefit from a natural moving average product pricing. In addition, asymmetric price risk management is able to increase the expected utility of risk adverse hog producers. But, if there is a futures contract at the European Exchange (EUREX), there is no option market and as a consequence no derivative contracts on the European hog market. The article is presenting how financial intermediaries could offer an innovative derivative contract to complement the “naturall ” steady price of the French hog producers.","PeriodicalId":170092,"journal":{"name":"Revue d’études en Agriculture et Environnement","volume":"93 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122699759","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: 3
Contractualisation et diffusion spatiale des mesures agro-environnementales herbagères 草甸农业环境措施的契约化和空间扩散
Pub Date : 1900-01-01 DOI: 10.22004/AG.ECON.207796
G. Allaire, É. Cahuzac, Michel Simioni
Cet article propose une analyse de la contractualisation des mesures agro-environnementales herbageres par les eleveurs et de la diffusion geographique du processus de contractualisation. Les donnees individuelles mobilisees sont geo-referencees et concernent l'ensemble des eleveurs de bovins ou ovins/caprins francais beneficiant d'au moins une mesure PAC du premier pilier et ayant contracte ou non une telle mesure. Une base de donnees territorialisees de contexte (Observatoire des programmes communautaires de developpement rural) est utilisee pour completer l'information. Dans une premiere etape, les resultats provenant de l'estimation de modeles probit sur ces donnees individuelles montrent que l'introduction de variables de contexte en complement des caracteristiques individuelles permet d'obtenir une bonne prediction des taux de contractualisation a un niveau geographique fin (infra-cantonal). Dans une deuxieme etape, la localisation des individus est prise en compte au travers d'un effet de voisinage dans un modele probit spatial. Les resultats montrent que les effets de proximite spatiale dus a la diversite geographique des systemes de production et aux reseaux sociaux s'expriment essentiellement au niveau de la commune et de micro-zones (infra-cantonales).
本文分析了牧民对草甸农业环境措施的契约化和契约化过程的地理分布。所使用的个人数据是地理参考数据,涉及所有受益于至少一项cap第一支柱措施的法国牛或绵羊/山羊养殖户,无论他们是否签订了此类措施合同。使用领土背景数据库(社区农村发展方案观察站)来补充资料。在第一阶段,对这些个体数据的probit模型估计的结果表明,除了个体特征之外,还引入了环境变量,可以很好地预测精细地理水平(次州)的承包率。在第二步中,在空间概率模型中通过邻域效应考虑个体的位置。结果表明,由于生产系统和社会网络的地理多样性而产生的空间邻近效应主要表现在公社和微区(次州)层面。
{"title":"Contractualisation et diffusion spatiale des mesures agro-environnementales herbagères","authors":"G. Allaire, É. Cahuzac, Michel Simioni","doi":"10.22004/AG.ECON.207796","DOIUrl":"https://doi.org/10.22004/AG.ECON.207796","url":null,"abstract":"Cet article propose une analyse de la contractualisation des mesures agro-environnementales herbageres par les eleveurs et de la diffusion geographique du processus de contractualisation. Les donnees individuelles mobilisees sont geo-referencees et concernent l'ensemble des eleveurs de bovins ou ovins/caprins francais beneficiant d'au moins une mesure PAC du premier pilier et ayant contracte ou non une telle mesure. Une base de donnees territorialisees de contexte (Observatoire des programmes communautaires de developpement rural) est utilisee pour completer l'information. Dans une premiere etape, les resultats provenant de l'estimation de modeles probit sur ces donnees individuelles montrent que l'introduction de variables de contexte en complement des caracteristiques individuelles permet d'obtenir une bonne prediction des taux de contractualisation a un niveau geographique fin (infra-cantonal). Dans une deuxieme etape, la localisation des individus est prise en compte au travers d'un effet de voisinage dans un modele probit spatial. Les resultats montrent que les effets de proximite spatiale dus a la diversite geographique des systemes de production et aux reseaux sociaux s'expriment essentiellement au niveau de la commune et de micro-zones (infra-cantonales).","PeriodicalId":170092,"journal":{"name":"Revue d’études en Agriculture et Environnement","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129591919","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: 23
Decoupling and prices: determinant of dairy farmers’ choices? 脱钩与价格:奶农选择的决定因素?
Pub Date : 1900-01-01 DOI: 10.4074/S1966960711001032
B. Lelyon, V. Chatellier, K. Daniel
In this paper, we discuss the cross-effects on the productive strategy of French dairy farms due to the decoupling and to price variation. A model based on mathematical programming has been developed to determine how dairy farmers might re-evaluate their systems to identify an optimal production plan. The model is applied to four types of dairy farms in order to analyze the impact of the reform depending on farm’s activities. The simulations point out how the implementation of the decoupling encourages farmers to increase the share of grassland. However, the increase in cereal prices is a strong incentive to intensify forage production to free up land for crop production. Finally, after four years of decoupling, this study helps to put into perspective the theoretical effects of decoupling and the actual choices made by farmers. This article identifies six factors which could explain these differences: the longterm production requirements, the eligibility criteria for the direct payment, the sociology/psychology of the farmer, the anticipation of a new reform, the trade organization and the value of property assets.
本文主要讨论了脱钩和价格变动对法国奶牛场生产策略的交叉影响。一个基于数学规划的模型已经被开发出来,以确定奶农如何重新评估他们的系统,以确定最佳的生产计划。将该模型应用于四种类型的奶牛场,以便根据奶牛场的活动分析改革的影响。模拟结果指出了脱钩的实施如何鼓励农民增加草原的份额。然而,谷物价格的上涨是加强饲料生产以腾出土地用于作物生产的强烈动机。最后,经过四年的脱钩,本研究有助于将脱钩的理论效应与农民的实际选择联系起来。本文找出了六个可以解释这些差异的因素:长期生产要求、直接支付的资格标准、农民的社会学/心理、对新改革的预期、行业组织和财产资产的价值。
{"title":"Decoupling and prices: determinant of dairy farmers’ choices?","authors":"B. Lelyon, V. Chatellier, K. Daniel","doi":"10.4074/S1966960711001032","DOIUrl":"https://doi.org/10.4074/S1966960711001032","url":null,"abstract":"In this paper, we discuss the cross-effects on the productive strategy of French dairy farms due to the decoupling and to price variation. A model based on mathematical programming has been developed to determine how dairy farmers might re-evaluate their systems to identify an optimal production plan. The model is applied to four types of dairy farms in order to analyze the impact of the reform depending on farm’s activities. The simulations point out how the implementation of the decoupling encourages farmers to increase the share of grassland. However, the increase in cereal prices is a strong incentive to intensify forage production to free up land for crop production. Finally, after four years of decoupling, this study helps to put into perspective the theoretical effects of decoupling and the actual choices made by farmers. This article identifies six factors which could explain these differences: the longterm production requirements, the eligibility criteria for the direct payment, the sociology/psychology of the farmer, the anticipation of a new reform, the trade organization and the value of property assets.","PeriodicalId":170092,"journal":{"name":"Revue d’études en Agriculture et Environnement","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128385116","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: 8
L'écologisation de la politique agricole européenne. Verdissement ou refondation des systèmes agro-alimentaires ? 欧洲农业政策的绿化。农业粮食系统的绿化还是重建?
Pub Date : 1900-01-01 DOI: 10.22004/AG.ECON.207798
C. Deverre, C. Marie
This article addresses the process of growing integration of environmental concerns (referred to as “ecologisation”) in European agricultural policies, and suggests a framework for assessing its effects on agri-food systems: marginal adaptation of the industrial model or ecologically based redesign of production? Following the paths of agro-environmental schemes from the debates within agricultural sciences to their implementation on theround in France and Switzerland enables to point out various scientific, political and social features for introducing nature conservation plans within production systems. The impacts and limits of ecologisation are assessed by using the contrasted conceptual frameworks of the Ecological Modernisation and Treadmill of Production theories. We conclude putting the emphasis on the need to carefully take in account the relations between the different spatial scales involved in this evaluation, from the local one to the international one.
本文阐述了欧洲农业政策中环境问题(称为“生态化”)日益一体化的过程,并提出了一个评估其对农业食品系统影响的框架:工业模式的边际适应或基于生态的生产重新设计?跟踪农业环境计划从农业科学内部的辩论到其在法国和瑞士的全面实施的路径,可以指出在生产系统内引入自然保护计划的各种科学、政治和社会特征。生态化的影响和限制是通过使用生态现代化和生产跑步机理论的对比概念框架来评估的。最后,我们强调有必要仔细考虑这一评价所涉及的不同空间尺度之间的关系,从地方尺度到国际尺度。
{"title":"L'écologisation de la politique agricole européenne. Verdissement ou refondation des systèmes agro-alimentaires ?","authors":"C. Deverre, C. Marie","doi":"10.22004/AG.ECON.207798","DOIUrl":"https://doi.org/10.22004/AG.ECON.207798","url":null,"abstract":"This article addresses the process of growing integration of environmental concerns (referred to as “ecologisation”) in European agricultural policies, and suggests a framework for assessing its effects on agri-food systems: marginal adaptation of the industrial model or ecologically based redesign of production? Following the paths of agro-environmental schemes from the debates within agricultural sciences to their implementation on theround in France and Switzerland enables to point out various scientific, political and social features for introducing nature conservation plans within production systems. The impacts and limits of ecologisation are assessed by using the contrasted conceptual frameworks of the Ecological Modernisation and Treadmill of Production theories. We conclude putting the emphasis on the need to carefully take in account the relations between the different spatial scales involved in this evaluation, from the local one to the international one.","PeriodicalId":170092,"journal":{"name":"Revue d’études en Agriculture et Environnement","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122473076","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: 74
Les choix des conjoints en agriculture 配偶在农业方面的选择
Pub Date : 1900-01-01 DOI: 10.3406/reae.2008.1946
C. Giraud, J. Rémy
Le monde agricole a longtemps ete caracterise par une relative fermeture sur lui-meme. Fermeture professionnelle qui laisse peu de place aux nouveaux entrants d’origines sociales diverses, fermeture conjugale avec un choix relativement circonscrit aux filles d’agriculteur et restreint par la demographie des campagnes. La montee de l’heterogamie, non seulement professionnelle (les femmes travaillent de plus en plus a l’exterieur de l’exploitation) mais sociale (les femmes sont de moins en moins issues du milieu agricole), remet en question cette image. Cette ouverture conjugale n’est pas uniforme : les agriculteurs des secteurs les plus specialises, comme la cerealiculture, sont plus enclins a avoir une conjointe exterieure a l’agriculture ; elle sera la partenaire dans une vie familiale qui ne se confondra pas avec celle de l’exploitation. Dans les secteurs moins specialises – comme les systemes de polyculture elevage ou dans la production de lait avec un fort travail d’astreinte – ils ont plus tendance a avoir des conjointes filles d’agriculteurs qui travaillent avec eux, bref des collaboratrices dans une vie familiale centree sur le travail.
长期以来,农业世界的特点是相对封闭。职业关闭给来自不同社会背景的新进入者留下的空间很小,婚姻关闭的选择相对局限于农民的女儿,并受到农村人口的限制。异质性的增加,不仅是职业上的(妇女越来越多地在农场以外工作),而且是社会上的(妇女越来越少地来自农业环境),使这种形象受到质疑。这种婚姻的开放性是不统一的:在更专业的部门,如谷物种植,农民更有可能有一个农业以外的配偶;她将成为家庭生活中的伴侣,而家庭生活不会与农场生活相混淆。等专业部门少—牛奶中混合种植林下或生产系统与浓重的工作—待命,他们更倾向于有联合的女孩和他们一起打工的农民,在一个简短的合作者对家庭生活的中心工作。
{"title":"Les choix des conjoints en agriculture","authors":"C. Giraud, J. Rémy","doi":"10.3406/reae.2008.1946","DOIUrl":"https://doi.org/10.3406/reae.2008.1946","url":null,"abstract":"Le monde agricole a longtemps ete caracterise par une relative fermeture sur lui-meme. Fermeture professionnelle qui laisse peu de place aux nouveaux entrants d’origines sociales diverses, fermeture conjugale avec un choix relativement circonscrit aux filles d’agriculteur et restreint par la demographie des campagnes. La montee de l’heterogamie, non seulement professionnelle (les femmes travaillent de plus en plus a l’exterieur de l’exploitation) mais sociale (les femmes sont de moins en moins issues du milieu agricole), remet en question cette image. Cette ouverture conjugale n’est pas uniforme : les agriculteurs des secteurs les plus specialises, comme la cerealiculture, sont plus enclins a avoir une conjointe exterieure a l’agriculture ; elle sera la partenaire dans une vie familiale qui ne se confondra pas avec celle de l’exploitation. Dans les secteurs moins specialises – comme les systemes de polyculture elevage ou dans la production de lait avec un fort travail d’astreinte – ils ont plus tendance a avoir des conjointes filles d’agriculteurs qui travaillent avec eux, bref des collaboratrices dans une vie familiale centree sur le travail.","PeriodicalId":170092,"journal":{"name":"Revue d’études en Agriculture et Environnement","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126773028","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: 19
La vaccination des bovidés contre la tuberculose en France, 1921-1963 : entre modèle épistémique et alternative à l'abattage 1921-1963年法国牛结核病疫苗接种:在认知模型和屠宰替代之间
Pub Date : 1900-01-01 DOI: 10.3406/reae.2010.1994
Delphine Berdah
[paper in French] This paper focuses on the trajectory of the BCG vaccine used against bovine tuberculosis in France between 1921 and 1963. It shows how public health issues related to this disease are intimately linked with other issues, whether professional, industrial or of political economy. First, it analyses the way the Pasteur Institute, veterinarians and farmers got mobilized to transform the French legislation in order to gain more direct responsibilities in the control of bovine tuberculosis between 1930 and 1950. Second, it studies how farmers’ appropriation of prophylactic techniques contributed to redefine the sanitary policy against this disease in a global context of agricultural modernization promoted by the post-war French government, whereas at the same time, the new research orientation of the Pasteur Institute led to the abandon of the veterinary vaccine.
这篇论文的重点是1921年至1963年在法国用于防治牛结核病的卡介苗的发展轨迹。它显示了与这种疾病有关的公共卫生问题如何与其他问题密切相关,无论是专业、工业还是政治经济问题。首先,它分析了巴斯德研究所,兽医和农民动员起来改变法国立法的方式,以便在1930年至1950年间在控制牛结核病方面获得更直接的责任。其次,在战后法国政府推动农业现代化的全球背景下,农民对预防技术的利用如何重新定义了针对这种疾病的卫生政策,而与此同时,巴斯德研究所的新研究方向导致了兽医疫苗的放弃。
{"title":"La vaccination des bovidés contre la tuberculose en France, 1921-1963 : entre modèle épistémique et alternative à l'abattage","authors":"Delphine Berdah","doi":"10.3406/reae.2010.1994","DOIUrl":"https://doi.org/10.3406/reae.2010.1994","url":null,"abstract":"[paper in French] This paper focuses on the trajectory of the BCG vaccine used against bovine tuberculosis in France between 1921 and 1963. It shows how public health issues related to this disease are intimately linked with other issues, whether professional, industrial or of political economy. First, it analyses the way the Pasteur Institute, veterinarians and farmers got mobilized to transform the French legislation in order to gain more direct responsibilities in the control of bovine tuberculosis between 1930 and 1950. Second, it studies how farmers’ appropriation of prophylactic techniques contributed to redefine the sanitary policy against this disease in a global context of agricultural modernization promoted by the post-war French government, whereas at the same time, the new research orientation of the Pasteur Institute led to the abandon of the veterinary vaccine.","PeriodicalId":170092,"journal":{"name":"Revue d’études en Agriculture et Environnement","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129193485","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: 17
La valeur récréative de la forêt en France : une approche par les coûts de déplacement 法国森林的娱乐价值:一种基于旅行成本的方法
Pub Date : 1900-01-01 DOI: 10.3406/reae.2010.1938
S. Garcia, J. Jacob
[paper in French] Open-access is probably the main cause of crowding on recreational sites, especially when they are attractive and close to urban areas. In this case, theory predicts equilibrium and optimum differ due to externality of congestion. Whereas Fisher and Krutilla (1972) caracterized optimum and equilibrium in monosite models, recent works on congestion in multiple sites models (Random Utility Models) only study equilibrium and the repartition of visits between sites in an empirical way. Our theoretical framework allows us to go further and derive visitation equilibrium and visitation optimum in a two sites Random Utility Model with participation. Sites differ by quality. We use a recent measure of welfare (Erlander, 2005), essential to calculate optimum. At equilibrium, we show that participation is too high and that the high quality site is too much visited. We introduce optimal taxes to resolve this issue. Because this solution does not appear very realistic in the French case, we also examine impacts of improvements of quality on welfare. An illustration is finally proposed with a multinomial logit model estimated with data on recreational fishing
开放通道可能是造成娱乐场所拥挤的主要原因,尤其是当娱乐场所很有吸引力且靠近市区时。在这种情况下,理论预测由于拥塞的外部性,均衡和最优是不同的。Fisher和Krutilla(1972)在单站点模型中描述了最优和均衡,而最近关于多站点拥堵模型(随机效用模型)的研究仅以经验的方式研究了均衡和站点之间访问的重新分配。我们的理论框架允许我们更进一步,在一个有参与的两个站点随机效用模型中推导出访问均衡和访问最优。网站的质量不同。我们使用了最近的福利衡量标准(Erlander, 2005),这对计算最优值至关重要。在平衡状态下,我们显示参与率过高,高质量站点的访问量过高。我们引入最优税收来解决这个问题。由于这种解决方案在法国的情况下似乎不太现实,我们还研究了质量改善对福利的影响。最后提出了一个用休闲钓鱼数据估计的多项logit模型
{"title":"La valeur récréative de la forêt en France : une approche par les coûts de déplacement","authors":"S. Garcia, J. Jacob","doi":"10.3406/reae.2010.1938","DOIUrl":"https://doi.org/10.3406/reae.2010.1938","url":null,"abstract":"[paper in French] Open-access is probably the main cause of crowding on recreational sites, especially when they are attractive and close to urban areas. In this case, theory predicts equilibrium and optimum differ due to externality of congestion. Whereas Fisher and Krutilla (1972) caracterized optimum and equilibrium in monosite models, recent works on congestion in multiple sites models (Random Utility Models) only study equilibrium and the repartition of visits between sites in an empirical way. Our theoretical framework allows us to go further and derive visitation equilibrium and visitation optimum in a two sites Random Utility Model with participation. Sites differ by quality. We use a recent measure of welfare (Erlander, 2005), essential to calculate optimum. At equilibrium, we show that participation is too high and that the high quality site is too much visited. We introduce optimal taxes to resolve this issue. Because this solution does not appear very realistic in the French case, we also examine impacts of improvements of quality on welfare. An illustration is finally proposed with a multinomial logit model estimated with data on recreational fishing","PeriodicalId":170092,"journal":{"name":"Revue d’études en Agriculture et Environnement","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129546959","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: 12
La valorisation des matières organiques de la ville. Le cas des petits maraîchers de la zone périurbaine de Dakar 城市有机材料的定价。以达喀尔郊区的小市场园丁为例
Pub Date : 1900-01-01 DOI: 10.22004/AG.ECON.188237
M. Zélem
– Developper le potentiel d’adoption des matieres organiques pour ameliorer les productions agricoles revient a conferer a l’agriculture une nouvelle fonction et a integrer la question environnementale a l’exercice du metier d’agriculteur. Que se passe-t-il lors de la rencontre entre le projet d’associer l’agriculture a la gestion des dechets de la ville et les publics auxquels il s’adresse ? A quelles conditions l’agriculture periurbaine peut-elle contribuer a integrer les enjeux environnementaux qui lui sont assignes ?
-开发采用有机材料改善农业生产的潜力,意味着赋予农业新的功能,并将环境问题纳入农民的工作。在将农业与城市废物管理联系起来的项目和它所针对的公众之间的会议上发生了什么?在什么条件下,城郊农业可以帮助整合分配给它的环境问题?
{"title":"La valorisation des matières organiques de la ville. Le cas des petits maraîchers de la zone périurbaine de Dakar","authors":"M. Zélem","doi":"10.22004/AG.ECON.188237","DOIUrl":"https://doi.org/10.22004/AG.ECON.188237","url":null,"abstract":"– Developper le potentiel d’adoption des matieres organiques pour ameliorer les productions agricoles revient a conferer a l’agriculture une nouvelle fonction et a integrer la question environnementale a l’exercice du metier d’agriculteur. Que se passe-t-il lors de la rencontre entre le projet d’associer l’agriculture a la gestion des dechets de la ville et les publics auxquels il s’adresse ? A quelles conditions l’agriculture periurbaine peut-elle contribuer a integrer les enjeux environnementaux qui lui sont assignes ?","PeriodicalId":170092,"journal":{"name":"Revue d’études en Agriculture et Environnement","volume":"18 10","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133847256","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
La sélection des produits agricoles sensibles : le cas européen 敏感农产品的选择:欧洲案例
Pub Date : 1900-01-01 DOI: 10.3406/reae.2008.2087
Alexandre Gohin
Janvier 2008, les negociations multilaterales a l’Organisation mondiale du commerce (OMC) sont toujours bloquees sur le chapitre agricole. La pression internationale est forte sur l’Union europeenne (UE) pour qu’elle ouvre plus largement ses marches agricoles alors que celle-ci craint que cela ne conduise a remettre en cause son modele agricole europeen. En parallele, l’UE propose de developper l’utilisation des biocarburants dans les activites europeennes de transport terrestre, ce qui aurait un effet benefique pour son secteur agricole. L’objectif general de cet article est d’evaluer empiriquement les effets de ces deux scenarios pour apprecier dans quelle mesure la politique europeenne de promotion des biocarburants pourrait faciliter un accord agricole a l’OMC en attenuant ses effets redoutes. Ces evaluations sont conduites avec un modele d’equilibre general calculable qui permet d’en mesurer les impacts sur les differents secteurs agricoles et agroalimentaires europeens. Les resultats attendus des simulations montrent les effets benefiques du developpement des biocarburants et negatifs d’un accord a l’OMC sur les revenus agricoles europeens. Ils montrent surtout qu’en valeur absolue les seconds effets dominent les premiers et qu’ils sont tres contrastes entre les differents secteurs. Enfin, les analyses montrent l’attention qui doit etre portee a la definition des produits sensibles en fonction de la situation des marches: l’interet du secteur agricole europeen serait en particulier de retenir le bioethanol dans les produits sensibles a la place du sucre
2008年1月,世界贸易组织(wto)的多边谈判仍在农业章节受阻。国际社会对欧盟(eu)施加了巨大压力,要求其进一步开放农业市场,尽管欧盟担心这会导致其欧洲农业模式受到质疑。与此同时,欧盟提议在欧洲陆地运输活动中发展生物燃料的使用,这将对其农业部门产生有益的影响。本文的总体目标是实证评估这两种情景的影响,以评估欧洲促进生物燃料的政策在多大程度上可以通过减轻其不利影响来促进wto农业协议。这些评估是使用可计算的一般均衡模型进行的,该模型允许衡量对欧洲不同农业和农业食品部门的影响。模拟的预期结果显示了生物燃料发展的有利影响和世贸组织协议对欧洲农业收入的不利影响。最重要的是,它们表明,就绝对值而言,后一种影响压倒了前一种影响,各部门之间有很大的差异。最后,分析表明,应根据市场情况注意敏感产品的定义:在敏感产品中使用生物乙醇而不是糖,对欧洲农业部门特别有利。
{"title":"La sélection des produits agricoles sensibles : le cas européen","authors":"Alexandre Gohin","doi":"10.3406/reae.2008.2087","DOIUrl":"https://doi.org/10.3406/reae.2008.2087","url":null,"abstract":"Janvier 2008, les negociations multilaterales a l’Organisation mondiale du commerce (OMC) sont toujours bloquees sur le chapitre agricole. La pression internationale est forte sur l’Union europeenne (UE) pour qu’elle ouvre plus largement ses marches agricoles alors que celle-ci craint que cela ne conduise a remettre en cause son modele agricole europeen. En parallele, l’UE propose de developper l’utilisation des biocarburants dans les activites europeennes de transport terrestre, ce qui aurait un effet benefique pour son secteur agricole. L’objectif general de cet article est d’evaluer empiriquement les effets de ces deux scenarios pour apprecier dans quelle mesure la politique europeenne de promotion des biocarburants pourrait faciliter un accord agricole a l’OMC en attenuant ses effets redoutes. Ces evaluations sont conduites avec un modele d’equilibre general calculable qui permet d’en mesurer les impacts sur les differents secteurs agricoles et agroalimentaires europeens. Les resultats attendus des simulations montrent les effets benefiques du developpement des biocarburants et negatifs d’un accord a l’OMC sur les revenus agricoles europeens. Ils montrent surtout qu’en valeur absolue les seconds effets dominent les premiers et qu’ils sont tres contrastes entre les differents secteurs. Enfin, les analyses montrent l’attention qui doit etre portee a la definition des produits sensibles en fonction de la situation des marches: l’interet du secteur agricole europeen serait en particulier de retenir le bioethanol dans les produits sensibles a la place du sucre","PeriodicalId":170092,"journal":{"name":"Revue d’études en Agriculture et Environnement","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133552217","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: 4
Home bias in preferences and the political economics of agricultural protection 本土偏好与农业保护的政治经济学
Pub Date : 1900-01-01 DOI: 10.3406/reae.2011.1879
Clas Eriksson
Some consumers are willing to pay extra for food if it is of domestic origin. This paper theoretically examines the consequences of such home biased behavior for agricultural policy, assuming that the policy is decided by the median voter. The analysis is conducted in the framework of a small open economy, with a Ricardian production structure. Consumers differ with respect to how much extra they are willing to pay for a domestically produced agricultural good. For a tariff we find that, if there would be some home biased choices (no matter how few) in a laissez-faire regime, the political equilibrium will imply a strictly positive tariff. This tariff is high if the productivity in the agricultural sector of this country is low. A political equilibrium with a strictly positive subsidy requires stronger home bias than a tariff.
一些消费者愿意为国产食品支付额外费用。本文从理论上考察了这种偏向家庭的行为对农业政策的影响,假设政策是由中间选民决定的。分析是在一个小型开放经济的框架下进行的,具有李嘉图生产结构。消费者在愿意为国内生产的农产品额外支付多少钱方面存在差异。对于关税,我们发现,如果在一个自由放任的制度中存在一些国内偏见的选择(无论有多少),那么政治均衡将意味着严格的正面关税。如果这个国家农业部门的生产率低,这个关税就高。与关税相比,具有严格正补贴的政治平衡需要更强的本土偏见。
{"title":"Home bias in preferences and the political economics of agricultural protection","authors":"Clas Eriksson","doi":"10.3406/reae.2011.1879","DOIUrl":"https://doi.org/10.3406/reae.2011.1879","url":null,"abstract":"Some consumers are willing to pay extra for food if it is of domestic origin. This paper theoretically examines the consequences of such home biased behavior for agricultural policy, assuming that the policy is decided by the median voter. The analysis is conducted in the framework of a small open economy, with a Ricardian production structure. Consumers differ with respect to how much extra they are willing to pay for a domestically produced agricultural good. For a tariff we find that, if there would be some home biased choices (no matter how few) in a laissez-faire regime, the political equilibrium will imply a strictly positive tariff. This tariff is high if the productivity in the agricultural sector of this country is low. A political equilibrium with a strictly positive subsidy requires stronger home bias than a tariff.","PeriodicalId":170092,"journal":{"name":"Revue d’études en Agriculture et Environnement","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130564988","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: 8
期刊
Revue d’études en Agriculture et Environnement
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1