8,388 research outputs found
THE IMPACT OF TECHNICAL BARRIERS ON US-EU AGRO-FOOD TRADE
Controversial aspects exist in the current debate on the application of Non Tariff Measures (NTMs) on agro-food trade. This study intends to offer an evaluation of the trade impact of both non-technical and technical NTMs on the US-EU bilateral trade, the two major players in WTO negotiations. The results show two main structural differences between the EU and US borders: technical NTMs are preferred in the US, while in the EU the opposite is true; agro-food imports in the US face a number of NTMs more than double that of the EU. Gravity model estimates confirm the negative impact of NTMs on trade. However, safety technical requirements seem to have a positive effect on trade, probably as a consequence of lower transaction, monitoring and enforcing costs.International Relations/Trade,
Fokus auf der Untersuchung des Einflusses biometrischer Faktoren auf das Ergebnis der nTMS Messung sprachrelevanter Areale neurochirurgischer Patienten
Objective: Navigated transcranial magnetic stimulation (nTMS) is a non-invasive mapping tool to locate functional areas of the brain, gaining importance as a preoperative diagnostic device. This is a summary of three studies, Schwarzer et al., Rosenstock et al. and Zdunczyk et al., whose aim it is to increase the accuracy and usability of nTMS in different neurosurgical patient groups. They intend to describe neurophysiological data gained through nTMS as a supportive measure for surgical planning to increase patient safety and improve outcome.
Methods: All patients and healthy subjects were examined via bihemispheric nTMS. Schwarzer et al. ascertained a baseline picture naming performance and used repetitive nTMS (rnTMS) to induce speech disruptions to identify individual language areas in patients with language eloquent lesions. Nine biometric factors were analyzed for correlation with elevated error occurrence. Rosenstock et al. concentrated on the primary motor cortex of patients with motor-eloquent glioma and performed correlation analyses to test the association of nTMS-related variables and postoperative motor outcome. Zdunczyk et al. examined patients with degenerative cervical myelopathy (DCM) and healthy volunteers to see differences in neurophysiological nTMS data due to disease severity.
Results: Schwarzer et al. showed a significant increase in error occurrence with increased severity of cognitive impairment (p8mm (p=0.014). New postoperative deficits could be seen in patients with pathological excitability of the motor cortex (resting motor threshold ratio 110%, p=0.031). Patients with DCM had a reduced corticospinal excitability estimated by the recruitment curve (p=0.022), and patients with mild symptoms showed an increased activation on non- primary motor areas (p<0.005). Patients with severe symptoms showed a higher cortical inhibition (p<0.05) and a reduced motor area (p<0.05).
Conclusion: Most patients are eligible for rnTMS language mapping. A new protocol for language mapping is proposed for secure identification of patients eligible for reliable rnTMS in Schwarzer et al. Rosenstock et al. introduce a new risk stratification model, based on objective functional-anatomical and neurophysiological measures, which enables physicians to counsel patients about the risk of functional deterioration or the potential for recovery and supports surgical planning. Zdunczyk et al. propose a new concept for functional compensation for DCM on the cortical and spinal level: the corticospinal reserve capacity. nTMS is a viable diagnostic tool to characterize this and its parameters serve as valuable prognostic factors.Fragestellung: Navigierte transkranielle Magnetstimulation (nTMS) ist eine nicht-invasive Untersuchungsmethode, um kortikale Funktionsareale zu identifizieren, welche zunehmend an Bedeutung als präoperatives diagnostisches Mittel gewinnt. Dies ist eine Zusammenfassung dreier Studien, Schwarzer et al., Rosenstock et al. und Zdunczyk et al. Die Studien haben als Ziel, die Benutzerfreundlichkeit und Genauigkeit von nTMS für unterschiedliche neurochirurgische Patientengruppen zu verbessern. Neurophysiologische Parameter wurden mittels nTMS erhoben, um die operative Planung zu unterstützen und das individuelle Patientenrisiko korrekt einzuschätzen und zu verbessern.
Methodik: Alle Patienten und Probanden wurden bihemisphärisch mittels nTMS untersucht. Schwarzer et al. erhoben vorher die individuelle Fähigkeit zur Objektbenennung (baseline) und nutzten repetitive nTMS (rnTMS), um Sprachunterbrechungen hervorzurufen und somit Kortexareale bei Patienten mit sprachrelevanten Hirnläsionen zu identifizieren. Neun biometrische Patienteneigenschaften wurden in ein Verhältnis mit der Fehleranfälligkeit gesetzt. Rosenstock et al. untersuchten den primär motorischen Kortex bei Gliompatienten und analysierten den Zusammenhang von nTMS-ermittelten Parametern mit dem postoperativen Patientenzustand. Zdunczyk et al. betrachteten Patienten mit degenerativer zervikaler Myelopathie (DCM), sowie gesunde Probanden und ermittelten die unterschiedlichen nTMS-Parameter in Abhängigkeit von der Symptomschwere.
Ergebnisse: Die meisten biometrischen Faktoren zeigten keinen statistischen Zusammenhang mit dem Stimulationsergebnis bei Schwarzer et al. Je schwerer der Aphasiegrad und die kognitiven Einschränkungen waren, desto mehr Sprachfehler wurden in der rnTMS Untersuchung gemacht (je p8mm zwischen Tumor und kortikospinalem Trakt keine neuen permanenten postoperativen Defizite auftraten (p=0.014). Neue postoperative Defizite traten bei Patienten mit präoperativ pathologischer Kortexerregbarkeit (Ruhemotorschwellenverhältnis RMT 110%, p=0.031) auf. DCM Patienten wiesen eine reduzierte kortikospinale Erregbarkeit, gekennzeichnet durch ein Abflachen der recruitment curve, auf (p=0.022). Ein vergrößertes motorisch relevantes Kortexareal mit Aktivierung sekundärer Motorareale zeigte sich bei Patienten mit milder Symptomatik (p<0.005), während bei schwer betroffenen Patienten eine erhöhte kortikale Hemmung (CSP, p<0.05) und reduzierte motorische Kortexfläche auffiel (p<0.05).
Schlussfolgerung: Schwarzer et al. stellen ein neues Prüfungsprotokoll für die Eignung von Patienten für ein reliables rnTMS Ergebnis vor, wobei die statistische Analyse ergab, dass die meisten Patienten für eine reliable rnTMS Sprachuntersuchung geeignet sind. Rosenstock et al. präsentieren ein neues Risikostratifikationsmodell für Patienten mit
motorisch relevanten Gliomen, wodurch der Operateur anhand von funktionell-anatomischen und neurophysiologischen Parametern das individuelle Patientenrisiko für den postoperativen Verlauf einschätzen kann. Zdunczyk et al. beschreiben einen möglichen funktionellen Kompensationsmechanismus bei DCM Patienten auf kortikaler und spinaler Ebene: die kortikospinale Reservekapazität. Die durch nTMS ermittelten Parameter lassen damit objektivierbare prognostische Aussagen zu
How can Trade Help to Rebuild and Enhance the Economies of the Southern Mediterranean Countries?
Arab countries are experiencing major changes in their governance systems. While the features of the new era are still unclear, what is certain is that a new development paradigm will be adopted and significant efforts will be made to rebuild the economies of these countries, which have been seriously disrupted due to the revolutions and their aftermath. This article seeks to answer the question of how trade can play a significant positive role in rebuilding and enhancing the economies of these Southern Mediterranean Countries
Key Findings of the NTM-IMPACT Project
This special issue of The World Economy presents research findings from the European Commission–funded project “Assessment of the impacts of non-tariff measures (NTM)—on the competitiveness of the EU and selected trade partners” (NTM-Impact). Directed toward the EU and its trade partners, the project’s first overall objective was to collect and analyze new data on NTMs for key and representative agri-food products. This involved three components: creating a large symmetric international database on the diverse types of governmental standards and regulations used to address food safety and quality issues, constructing measures of heterogeneity among these standards and regulations; and evaluating the effects of the heterogeneity of NTMs on agri-food trade. The second overall objective was to undertake detailed case studies of NTMs among the main traders in markets for selected dairy, meat, and fruit and vegetable products. The third objective was to analyze the socioeconomic and trade impacts from private standards on a sample of low- and medium-income developing countries. Collaborators from 19 institutions in five EU and 11 non-EU countries participated in the project
Shallow versus Deep Integration between Mediterranean Countries and the EU and within the Mediterranean Region
The paper aims at assessing the specific impact of shallow versus deep integration between Mediterranean (MED) countries1 and their partners in the European Union (EU) as well as between the MED countries themselves. It relies on dataset developed for this project concerning tariffs (as a proxy for shallow integration) and Non Tariff Measures (NTMs)2 (as a proxy for deep integration). Additional data are also included in order to take into account other trade costs, especially transport costs and logistics costs. In this regard, an original dataset of maritime freight cost (Maersk, 2007) is introduced as well as the trade logistics performance (TLP) index produced by the World Bank. Such datasets are useful for providing additional insight into deep integration. The paper starts by calculating the magnitude of NTMs in terms of ad valorem tariff equivalent (AVEs). The estimation of NTMs through ad valorem equivalents (AVEs) shows that Algeria and Jordan have the highest value of AVEs, whereas Tunisia, Morocco, and Egypt have the lowest value. A gravity model is then estimated with special emphasis on trade costs which are the crucial point in our research study. Given the limitation of data on NTMs, the gravity model is estimated for only one year (2001), and for each MED country. Trade costs are represented by tariffs, AVEs of NTMs, and transport and logistics costs. The idea is to test which of the three elements of trade costs are the most impeding to bilateral trade between MED countries and EU countries as well as amongst MED countries. The model shows that tariffs, NTMs, and trade and logistics costs have a significant impact on trade, but is highly vivid in countries suffering from high tariff rates, prevalence of NTMs, and trade costs. A number of simulations are carried out trying to differentiate between the impact of partial liberalization and full liberalization on trade creation. The results obtained show that full liberalization has a significant effect whether it is only related to shallow integration (tariff removal) or deep integration (NTMs and trade and logistics). The effect is higher if trade costs and logistics are improved. The results are far less if only partial liberalization takes place and in several countries is insignificant implying that marginal reductions in NTMs or tariffs cannot always help to create trade. Finally the study shows that there is a huge potential for enhancing trade amongst MED countries if trade costs are lowered, logistics is improved, and NTMs are abolished.Regional Trade Agreements, Regional Integration, Non-Tariff-Measures, Deep versus shallow integration, South Mediterranean countries, European Union Trade Agreements
Taking Stock of Trade Protectionism Since 2008
Following the onset of the financial crisis in September 2008 and the subsequent “Great Trade Collapse” (Baldwin 2009), many countries actively used trade policy instruments as part of their response to the global recession. Governments pursued a mix of trade liberalization, trade promotion, and trade restrictions. The choice of trade policy has varied, with limited use of tariff hikes or antidumping and safeguard actions. Sector-specific support to industries dominated initial responses to the crisis, and there has been increasing resort to nontariff measures. Recent research suggests that vertical specialization—the growth in global supply chains—has played a significant role in limiting the use of traditional protectionist instruments. Pressures on governments to support domestic economic activity may increase, given current gloomy economic prospects and more binding macroeconomic policy constraints, and the number of protectionist measures has recently risen. Open trade cannot be taken for granted, thus the need for monitoring persists.trade, protectionism, financial crisis, trade policy, recession, trade liberalization, trade promotion, trade restrictions, WTO, Doha
Non-Tariff Measures: What do we Know, What Should be Done?
With the reduction in tariff barriers, Non-tariff and behind-the-border measures (NTM and BTB) have increased in importance. This paper surveys the state of knowledge with the view to drawing implications for policy suggestions to reduce those NTM barriers that are welfare reducing. Following a description of data bases and their shortcomings, the paper reviews the state of understanding on the effects of NTMs on trade flows. The more difficult issue of translating these effects into welfare implications are covered next. The paper concludes with different approaches at reducing NTMs.
A Cost-Benefit Framework for the Assessment of Non-Tariff Measures in Agro-Food Trade
This report develops a conceptual framework for the assessment of costs and benefits associated with non-tariff measures that allows an evidence-based comparative assessment of alternative regulatory approaches. It was prepared by Frank van Tongeren (OECD Secretariat), John Beghin (Iowa State University), and St?phan Marette (INRA).
How to improve the economic and social performance of Eastern and Southern Mediterranean countries
In this brief the authors analyze the key challenges facing the MED11 countries and propose policy measures that could improve the region’s economic and social performance
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