20 resultados para [JEL:F10] International Economics - Trade - General

em BORIS: Bern Open Repository and Information System - Berna - Suiça


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There is broad international agreement that investment flows to the agricultural sector in developing countries need to be increased. But there is also agreement that such investments need to be sustainable. For being sustainable, they must not only be beneficial to the public economy, but also to rural households and to the environment in the short and the long run. Whether sustainable investments take place, not least depends on the legal framework within which these investments are situated. This is true for the domestic legal frameworks of both the home country and of the host country of the investment. But also the international legal frameworks in which home and host states are embedded set either positive or negative incentives for investments to be sustainable. The paper presents an overview on regulatory frameworks which come to focus in this regard. It then elaborates on international agricultural trade regulation, by assuming that sustainable investments in agriculture presume a ‘sustainable trade regime’. By doing so, the paper presents parts of the debate about a sustainable agricultural trade regime, as it has been resumed and further developed by the author in recent years. Key words. Agricultural sector, sustainable investment, regulatory environment, sustainable trade regime.

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We study the labor market effects of realignment in fixed bilateral exchange rates, such as China's peg to the US dollar. We employ the open economy model by de Melo and Robinson to identify the core parameters of the real, trade side of the economy driving the unemployment effects of bilateral exchange rate realignment. A small open economy version of the model is explored analytically and a large multicountry version numerically. Analytics in the small open economy model show that unemployment effects of adjusting of a bilateral peg hinge on the fraction exported to and imported from the trading partner. A larger fraction exported to and a smaller fraction imported from the trading partner make it more likely that revaluation of a trading partner's currency has beneficial effects. Numerics in the large economy model show that Chinese revaluation can generate both positive and negative unemployment effects depending upon underlying parameter values. Adverse unemployment effects can go along with an improving trade balance.

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The case of a married couple developing polymyalgia rheumatica (PMR) consecutively is presented. The 55-year-old wife complained in June 2010 about pain in her neck. Case history, physical examination, and erythrocyte sedimentation rate (ESR) of 80 mm/hour led to the diagnosis of PMR. In May 2011, her 66-year old husband complained about pain in his neck, shoulders, buttocks, and thighs. Considering anamnesis, physical examination, and ESR of 56 mm/hour, the diagnosis of PMR was made. Both wife and husband responded to steroid treatment. When the steroid dose was gradually reduced, both patients relapsed. In order to lower the cumulative dose of glucocorticoid therapy, 10 mg methotrexate per week was added. In the literature, six cases of polymyalgia rheumatica in married couples have been described to date. In four cases, polymyalgia rheumatica occurred first in the wife. The interval of the diagnosis between the spouses ranged from 0 to 89 months. Although in most of the previous case reports a genetic disposition and an infectious agent have been discussed, this hypothesis must be questioned.

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The lipoprotein LppQ is the most prominent antigen of Mycoplasma mycoides subsp. mycoides small colony type (SC) during infection of cattle. This pathogen causes contagious bovine pleuropneumonia (CBPP), a devastating disease of considerable socio-economic importance in many countries worldwide. The dominant antigenicity and high specificity for M. mycoides subsp. mycoides SC of lipoprotein LppQ have been exploited for serological diagnosis and for epidemiological investigations of CBPP. Scanning electron microscopy and immunogold labelling were used to provide ultrastructural evidence that LppQ is located to the cell membrane at the outer surface of M. mycoides subsp. mycoides SC. The selectivity and specificity of this method were demonstrated through discriminating localization of extracellular (i.e., in the zone of contact with host cells) vs. integral membrane domains of LppQ. Thus, our findings support the suggestion that the accessible N-terminal domain of LppQ is surface exposed and such surface localization may be implicated in the pathogenesis of CBPP.

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Adhesion is the first step in the pathogenesis of enterotoxigenic Escherichia coli infections. The genes encoding the most prevalent adhesion factors CFA/I, CS3 and CS6 were cloned into Vibrio cholerae strain CVD 103-HgR and expression of fimbriae was investigated in wildtype and recombinant strains by transmission electron microscopy in conjunction with immunolabelling and negative staining. Negative staining was effective in revealing CFA/I and CS3, but not CS6. Although morphology of fimbriae differed between wildtype and recombinant strains, corresponding surface antigens were recognized by specific antibodies. The present study provides evidence that ETEC-specific fimbriae can adequately be expressed in an attenuated V. cholerae vaccine strain and that immunoelectron microscopy is a critical tool to validate the surface expression of antigens in view of their possible suitability for recombinant vaccines.

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Ethiopia has for a long time been one of the world’s most food-insecure countries. Efforts by the government and a multitude of sponsors including NGOs have developed an array of institutions and instruments to mitigate the negative impact of production and supply disruptions. Public stockpiles are one such tool, the use of which is rapidly increasing worldwide. This brief field study examines the Ethiopian policies and practice in context, including various instruments operated by farmers, processors and traders. The study finds that the multiple objectives assigned to food reserves as well as the present management structure may not be well-suited at a time of high world market prices and when international food aid is dwindling, and as the international regulatory trade and investment environment remains a matter of unfinished business from a global food security perspective. A comprehensive study of various options for improvements would lay out policy alternatives for public authorities and stakeholders.

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Polyphasic analysis was done on 24 strains of Bisgaard taxon 16 from five European countries and mainly isolated from dogs and human dog-bite wounds. The isolates represented a phenotypically and genetically homogenous group within the family Pasteurellaceae. Their phenotypic profile was similar to members of the genus Pasteurella. Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry clearly identified taxon 16 and separated it from all other genera of Pasteurellaceae showing a characteristic peak combination. Taxon 16 can be further separated and identified by a RecN protein signature sequence detectable by a specific PCR. In all phylogenetic analyses based on 16S rRNA, rpoB, infB and recN genes, taxon 16 formed a monophyletic branch with intraspecies sequence similarity of at least 99.1, 90.8, 96.8 and 97.2 %, respectively. Taxon 16 showed closest genetic relationship with Bibersteinia trehalosi as to the 16S rRNA gene (95.9 %), the rpoB (89.8 %) and the recN (74.4 %), and with Actinobacillus lignieresii for infB (84.9 %). Predicted genome similarity values based on the recN gene sequences between taxon 16 isolates and the type strains of known genera of Pasteurellaceae were below the genus level. Major whole cell fatty acids for the strain HPA 21(T) are C14:0, C16:0, C18:0 and C16:1 ω7c/C15:0 iso 2OH. Major respiratory quinones are menaquinone-8, ubiquinone-8 and demethylmenaquinone-8. We propose to classify these organisms as a novel genus and species within the family of Pasteurellaceae named Frederiksenia canicola gen. nov., sp. nov. The type strain is HPA 21(T) (= CCUG 62410(T) = DSM 25797(T)).