Pesticides Residues and Trade: the Apple of Discord?

The impact of food safety standards on international trade has already been addressed. Generally, economists try to assess trade losses borne by exporters when importing countries impose stricter regulations. In this paper we assess the impact of the Maximum Residue Levels (MRL) of pesticides on the trade of apples and pears. Rather than focusing on a particular pesticide we take into account the entire list of substances set out by the various regulations with the aim is to understand how the similarity (or dissimilarity) of these can affect trade. Most studies assess the impact of sanitary standard regulations introducing directly in the analysis the MLR put in force in the importing country. We assume that what can be crucial is the difference in the tolerance levels of both the importing and exporting country. Having built a similarity index we then introduce it into a gravity equation to assess the impact of differences in MRL of pesticides on the trade of apples and pears of seven exporting and seven importing countries. Results suggest that harmonizing regulations impacts trade differently depending on the exporter.food safety, standards, pesticides, MRL, apple, pear, market access, Crop Production/Industries, International Relations/Trade, Q17, F13,

Do trade preferential agreements enhance the exports of developing countries? Evidence from the EU GSP

The EU grants preferential access to its imports from developing countries under several trade agreements. The widest arrangement, in terms of country and product coverage, is the Generalised System of Preferences (GSP) through which, since 1971, virtually all developing countries have received preferential treatment when exporting to world markets. This paper evaluates the impact of GSP in enhancing developing countries’ exports to EU markets. It is based on the estimation of a gravity model for a sample of 769 products exported from 169 countries to EU over the period 2001-2004. While, from an econometric point of view, the estimation methods take into account unobservable country heterogeneity as well as the potential selection bias which zero-trade values pose, the empirical setting considers an explicit measure of trade preferences, the margin of preferences. The analysis offers new empirical evidence that the impact of GSP on developing countries’ agricultural exports to the EU is positive.Trade Preferences, Developing Countries, Agricultural Trade

Quartification On An Orbifold

We investigate quartification models in five dimensions, with the fifth dimension forming an $S^1/Z_2\times Z_2'$ orbifold. The orbifold construction is combined with a boundary Higgs sector to break the quartified gauge group directly to a group $H\subset SU(3)^4$ which is operative at the electroweak scale. We consider $H=G_{SM}\otimes SU(2)_\ell$ and $H=G_{SM}$, where $G_{SM}$ is the standard model gauge group, and find that unification occurs only when the remnant leptonic colour symmetry $SU(2)_\ell$ remains unbroken. Furthermore, the demands of a realistic low energy fermion spectrum specify a unique symmetry breaking route for the unifying case of $H=G_{SM}\otimes SU(2)_\ell$. We contrast this with four dimensional quartification models where unification may be achieved via a number of different symmetry breaking routes both with and without the remnant $SU(2)_\ell$ symmetry. The boundary Higgs sector of our model may be decoupled to achieve a Higgsless limit and we show that the electroweak Higgs doublet may be identified as the fifth component of a higher dimensional gauge field.Comment: 14 pages, misprint corrected, matches PRD versio

Neutrino masses in quartification schemes

The idea of quark-lepton universality at high energies has recently been explored in unified theories based upon the quartification gauge group SU(3)^4. These schemes encompass a quark-lepton exchange symmetry that results upon the introduction of leptonic colour. It has been demonstrated that in models in which the quartification gauge symmetry is broken down to the standard model gauge group, gauge coupling constant unification can be achieved, and there is no unique scenario. The same is also true when the leptonic colour gauge group is only partially broken, leaving a remnant SU(2)_\ell symmetry at the standard model level. Here we perform an analysis of the neutrino mass spectrum of such models. We show that these models do not naturally generate small Majorana neutrino masses, thus correcting an error in our earlier quartification paper, but with the addition of one singlet neutral fermion per family there is a realisation of see-saw suppressed masses for the neutrinos. We also show that these schemes are consistent with proton decay.Comment: 12 pages, minor changes. To appear in Phys. Rev.

The “Sophistication” of Agri-food International Trade: Switching the Concept to Imports

The aim of the paper is twofold. First, it introduces a new index (called Consy) for measuring the sophistication of traded goods looking at the importers’ side. The index is defined and then its sophistication content is assessed based on a simple regression model. Second, an empirical exercise is carried out focused on agri-food imports for a set of 46 selected items. This empirical analysis brings evidences on the kind of outcome provided by the index, but it also sheds light on recent trends in agri-food trade where demand of food imports in emerging countries is enlarging and it is more quality-oriented. Results can help stakeholders in better defining and implementing their exporting strategies, especially orienting business towards promising markets and enhancing the quality features for their exports to be delivered to more demanding consumers. Policymakers and sector analysts may also be interested in acknowledging how agri-food international trade is re-shaping in recent years in order to be able to govern the related processes.The Consy values of agrifood products indicate that rich countries are major world importers. Furthermore, the Consy ranking shows that higher value-added and more complex items are imported mainly by richer countries. The time trend of the Consy index is also studied and results show that, in the studied period, the was an increase of import shares of food items for final consumption of higher quality from poorer countries

True Detective Stories: Media Textuality and the Anthology Format between Remediation and Transmedia Narratives

In questioning the so-\uad called complexities of narrative models through the possibilities offered by the new trans-\uadmedia digital platforms, what defines the specificity of a medium, its materiality, inks and codes, along with the effects of the vanishing anchorage of the content in an identifiable technological dispositif, are issues to be confronted. This essay tries to elaborate on a very limited such confrontation, through the case study of a TV series \u2013 the first season of True detective (USA, HBO, 2014) and the ways it rewrites and translates some of the features of contemporary seriality and transmedia storytelling. Hence, what the article elaborates is, firstly, a hopefully productive, however brief, reflection on a language of the text that does not exclude the \u201cmateriality\u201d of the screen or the computer, along with the effects that the idea of contents outside their containers might induce on the very thinking of new forms of narratives and their affects

Melancholy and the body in the eighteenth century: the example of Samuel Johnson

Samuel Johnson (1709-1784), the great lexicographer and essayist, suffered from melancholy all his life. He believed that the disorder was congenital and that it afflicted his mind. To some degree, he saw the problem as arising in his abnormally large and partially disabled body. Locating the source of melancholy in his body, gave Johnson a way to deal with it, and it partially relieved him of the guilt and shame he felt concerning the disease. Johnson’s greatest fear concerning his condition was that it touched not only his mind but also his soul. In the form of scruples and spiritual torpor, melancholy weighed Johnson down and stimulated his fears of death and damnation. As a physical body, Johnson was perhaps deformed, but he was courageous. No physical danger frightened him, but he trembled for the life of his soul, and his melancholy, even if it was psycho-somatic (avant la lettre), was his greatest threat