76 research outputs found
Economic Appraisal of Profitability and Sustainability of Peri-Urban Agriculture in Bangkok
Promoters of urban and peri-urban agriculture generally stress its positive role in terms of food security, income, employment and improvement of the urban environment. Unfortunately, competition with agricultural and non-agricultural uses of peri-urban farm land often translates into intensive farming systems that are detrimental to the environment. Based on two original surveys of peri-urban farms in the area of Bangok, this paper ranks four cropping systems (fish, shrimp, rice, and fruits) according to their economic profitability. A second step of the analysis aims at taking into account the cost of water into the analysis, so as to assess whether the hierarchy formerly established is modified. Although all environmental costs are not introduced and environmental benefits are ignored, this work paves the way for further research in the area of taking into account the environmental impact of farming activities. ...French Abstract : Les tenants de l'agriculture urbaine et pĂ©ri-urbaine invoquent gĂ©nĂ©ralement son rĂŽle positif en termes de sĂ©curitĂ© alimentaire, de gĂ©nĂ©ration d'emplois et de revenus et d'amĂ©lioration de l'environnement urbain. Toutefois, la concurrence entre usages agricoles et non agricoles de la terre en zone pĂ©ri-urbaine est malheureusement souvent Ă l'origine de systĂšmes agricoles intensifs prĂ©judiciables Ă l'environnement. A partir de deux enquĂȘtes effectuĂ©es dans des exploitations de la zone pĂ©ri-urbaine de Bangkok, cet article tente de classer quatre systĂšmes productifs (aquaculture, pisciculture, riziculture et arboriculture fruitiĂšre) en fonction de leur rentabilitĂ© Ă©conomique. Dans une seconde partie, nous cherchons Ă Ă©valuer dans quelle mesure l'introduction du coĂ»t de l'eau (l'eau propre Ă©tant paradoxalement une ressource rare Ă Bangkok) dans l'analyse Ă©conomique de la rentabilitĂ© des activitĂ©s modifie la hiĂ©rarchie prĂ©cĂ©demment Ă©tablie. Bien qu'imparfait (tous les coĂ»ts environnementaux ne sont pas inclus et d'Ă©ventuels bĂ©nĂ©fices environnementaux sont ignorĂ©s), cet article constitue une tentative de prise en compte de l'impact environnemental dans les l'analyse Ă©conomique des activitĂ©s agricoles.ENVIRONMENTAL ECONOMICS; PERI-URBAN AGRICULTURE; ASIA; THAILAND
Cross-border coordination in the Madagascar-EU lychee chain: the role of GlobalGAP
Madagascar has a tradition of agricultural trade (coffee, vanilla, cloves). In the 90s, the country started developing non-traditional exports, such as lychees, to the European Union (EU), thereby generating substantial cash revenues for small producers. In 2005, access to the EU market became more difficult, due to more stringent quality requirements and to the growing use of the private retailer standard GlobalGAP. Whereas the empirical literature on private standards presents GlobalGAP either as a success story or a threat for small producers, the case of Madagascar exhibits a specific dynamics: after booming in 2007, GlobalGAP is actually collapsing. The aim of this article is to disentangle the mechanisms of this evolution and to draw some conclusions regarding market access enhancement through private standards. This work is based on semi-structured interviews carried out with all stakeholders of the export chain, government agencies and programs supporting lychee production and on weekly data on lychee trade flows (2001-2010). Using a global value chain approach, we first show the importance of the chain structure: importers are identified as lead-firms (conversely to most studies dealing with private certification) in an environment characterized by low competition at the international level. We then evaluate the role of donors and trade facilitators as actors of the chain. After giving evidence for the collapse of GlobalGAP, we assess what is left of the GlobalGAP procurement system once it has been abandoned: stabilization of the relationship between exporters and producers and thus enhanced traceability, upgrading of private marketing infrastructures, improved management discipline. We conclude that in the Madagascar lychee chain, although GlobalGAP had little impact on market access.PRIVATE CERTIFICATION; GLOBAL CHAINS; NON-TARIFF MEASURES; FOREIGN AID; NON-TRADITIONAL EXPORTS
Looking for the (missing) indicators of social sustainability - Evidence from sustainability standards in the coffee sector
Rising consumer interest for ethical and/or responsible products and the growing interweaving of social and environmental issues question the ability of scientific methods to correctly assess social impacts. To this day however, no consensus has yet been reached on relevant indicators to assess social impacts. In this article, we try to identify consistent indicators of social sustainability, based on the study and comparison of well-known sustainability standards currently used in the coffee sector (FLO, ESR, IMO, ETI, UTZ, Rainforest Alliance and Globalgap). The choice of relevant indicators is based on their realism and applicability, and on existing consensus among the standards on "minimal requirements" to certify sustainable practices in the coffee sector. Our main contributions to the debate on the choice of significant and relevant indicators are: to identify permanent features and areas of consensus between the different standards studied; and to question the definition of a socially sustainable product. ...French Abstract : L'intĂ©rĂȘt grandissant des consommateurs pour les produits Ă©thiques et/ou responsables et l'imbrication croissante des problĂ©matiques sociales et environnementales amĂšnent Ă nous interroger sur la capacitĂ© des mĂ©thodes scientifiques actuelles Ă mesurer l'impact social. A ce jour, il n'existe pas de consensus autour d'indicateurs de durabilitĂ© sociale. Dans cet article, nous tentons d'identifier des indicateurs pertinents grĂące Ă la comparaison de standards de durabilitĂ© communĂ©ment utilisĂ©s dans le secteur du cafĂ© (FLO, ESR, IMO, ETI, UTZ, Rainforest Alliance and Globalgap). Le choix de la pertinence des indicateurs est basĂ© sur leur rĂ©alisme et leur applicabilitĂ©, ainsi que sur l'existence d'un consensus entre standards sur un " minimum requis " dans les cahiers des charges, pour la certification de pratiques socialement durables dans le secteur du cafĂ©. Les contributions principales de ce papier sont : l'identification d'aires de consensus minimal entre les standards et une discussion de la durabilitĂ© sociale telle qu'elle est dĂ©finie par ces standards.METHODS; SOCIAL LCA; SOCIAL STANDARDS; INDICATORS; FOOD SECTOR
From commoditisation to de-commoditisation... and back again. Discussing the role of sustainability standards for agricultural products
Sustainability standards are flooding global agricultural markets. Standards however, are not recent: standards for the exchange of grain and tropical products emerged in the 19th century. The objective of this article is to analyze, in a historical perspective, the implications of the transition from traditional standards to sustainability standards on the commoditization/de-commoditization process. We show how early standards and grades contributed to the construction of the category of products called primary commodities and how, after a short attempt at de-commoditization (with the early fair trade and organic standards), sustainability standards tend towards re-commoditization. ...French Abstract : Dans de nombreux secteurs, les standards durables de produits agricoles envahissent le marchĂ© : cafĂ© respectueux des oiseaux, coton biologique, produits forestiers extraits de forĂȘts gĂ©rĂ©es de maniĂšre durable, huile de palme durable, ananas issus du commerce Ă©quitable, bananes Ă©thiques, etc. Dans cette course Ă la respectabilitĂ© environnementale et sociale, les acteurs du secteur privĂ© supplantent progressivement les autoritĂ©s publiques dans la " qualification " des produits, notamment via la promotion d'Ă©colabels volontaires ou la communication sur les consĂ©quences sociales et environnementales de leurs activitĂ©s Ă©conomiques. Cet article se propose d'analyser, dans une perspective historique, la transition observĂ©e de standards traditionnels aux standards durables, et de montrer comment cette transition a modifiĂ© le statut des produits primaires exportĂ©s par de nombreux pays du Sud. Nous dĂ©fendons l'idĂ©e selon laquelle la prolifĂ©ration actuelle de standards durables risque de se mener Ă terme Ă la banalisation des enjeux environnementaux et sociaux et Ă la dilution de leurs exigences dans une version Ă©dulcorĂ©e des standards durables qui ne donnerait lieu Ă aucune prime de prix pour les producteurs tout en restreignant leur accĂšs au marchĂ©.GRADES; TRADITIONAL STANDARDS; SUSTAINABILITY STANDARDS; COMMODITIES; FAIR TRADE; ORGANIC AGRICULTURE
Seeking Sustainability: COSA preliminary analysis of sustainability initiatives in the coffee sector
The growing economic value and consumer popularity of sustainability standards inevitably raise questions about the extent to which their structure and dynamics actually address many environmental, economic and public welfare issues. The Committee on Sustainable Assessment (COSA) was formed, in part, to develop a scientifically credible framework capable of assessing the impacts associated with the adoption of sustainability initiatives. This paper examines the pilot phase of vetting and testing the COSA method, an innovative management tool used to gather and analyze data using economic, environmental and social metrics.sustainability initiatives, standards, organic, fair trade, Rainforest, social, environmental, economic certification
Seeking Sustainability: COSA preliminary analysis of sustainability initiatives in the coffee sector
The growing economic value and consumer popularity of sustainability standards inevitably raise questions about the extent to which their structure and dynamics actually address many environmental, economic and public welfare issues. The Committee on Sustainable Assessment (COSA) was formed, in part, to develop a scientifically credible framework capable of assessing the impacts associated with the adoption of sustainability initiatives. This paper examines the pilot phase of vetting and testing the COSA method, an innovative management tool used to gather and analyze data using economic, environmental and social metrics
Final results on the 0ÎœÎČÎČ decay half-life limit of Mo from the CUPID-Mo experiment
The CUPID-Mo experiment to search for 0ÎœÎČÎČ decay in Mo has been recently completed after about 1.5 years of operation at Laboratoire Souterrain de Modane (France). It served as a demonstrator for CUPID, a next generation 0ÎœÎČÎČ decay experiment. CUPID-Mo was comprised of 20 enriched LiMoO scintillating calorimeters, each with a mass of âŒ0.2 kg, operated at âŒ20 mK. We present here the final analysis with the full exposure of CUPID-Mo (Mo exposure of 1.47 kgĂyear) used to search for lepton number violation via 0ÎœÎČÎČ decay. We report on various analysis improvements since the previous result on a subset of data, reprocessing all data with these new techniques. We observe zero events in the region of interest and set a new limit on the Mo 0ÎœÎČÎČ decay half-life of T >1.8Ă10 year (stat. + syst.) at 90% CI. Under the light Majorana neutrino exchange mechanism this corresponds to an effective Majorana neutrino mass of âšmâ© < (0.28â0.49) eV, dependent upon the nuclear matrix element utilized
The background model of the CUPID-Mo experiment
CUPID-Mo, located in the Laboratoire Souterrain de Modane (France), was a
demonstrator for the next generation decay experiment, CUPID.
It consisted of an array of 20 enriched LiMoO bolometers and
20 Ge light detectors and has demonstrated that the technology of scintillating
bolometers with particle identification capabilities is mature. Furthermore,
CUPID-Mo can inform and validate the background prediction for CUPID. In this
paper, we present a detailed model of the CUPID-Mo backgrounds. This model is
able to describe well the features of the experimental data and enables studies
of the decay and other processes with high precision. We also
measure the radio-purity of the LiMoO crystals which are
found to be sufficient for the CUPID goals. Finally, we also obtain a
background index in the region of interest of
3.7(stat)(syst)counts/E/mol/yr,
the lowest in a bolometric decay experiment
Precise measurement of 2 ÎœÎČÎČ decay of 100 Mo with the CUPID-Mo detection technology
We report the measurement of the two-neutrino double-beta (2 ÎœÎČÎČ) decay of 100Mo to the ground state of 100Ru using lithium molybdate (Li2100MoO4) scintillating bolometers. The detectors were developed for the CUPID-Mo program and operated at the EDELWEISS-III low background facility in the Modane underground laboratory (France). From a total exposure of 42.235 kgĂ day, the half-life of 100Mo is determined to be T1/22Îœ=[7.12-0.14+0.18(stat.)±0.10(syst.)]Ă1018 years. This is the most accurate determination of the 2 ÎœÎČÎČ half-life of 100Mo to date
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