On Some Effects of International Fragmentation of Production on Comparative Advantages,Trade Flows and the Income of Countries

In traditional trade models, whether based on technological differences or on relative factor endowments, merchandise composition and directions of trade are derived from closed‐economy conditions. But nowadays one of the basic assumptions of traditional trade models, i.e. that production processes are integrated within just one country, is being increasingly violated as previously integrated productive activities are segmented and spread over an international network of production sites: as a result, an increasingly large share of trade flows is made up of intermediate and unfinished goods being transferred from one country to another in order to be processed. In this paper we submit that such new configuration of production processes has important effects on at least three dimensions of economic research. First, we show that international disintegration of production processes leads to a lessening of the power of comparative advantages when it comes to explaining both merchandise composition and directions of trade, while it is the concept of absolute advantage to become increasingly relevant; second, we show that empirical measures of revealed comparative advantages are inherently misleading if they do not account for differences in the stage‐of‐processing of traded goods; third, we estimate a simple model of aggregate demand accounting for international trade in intermediates: results of estimation lend support to our prior that participation of a country in the process of international fragmentation of production plays a specific and significant role in determining its year‐over‐year change in GDP.     

Financial Markets, Development and Economic Growth: Tales of Informational Asymmetries

Abstract.  The development of financial systems is very often characterised by the development of innovative financial contracts which allow a more efficient allocation of resources and a higher level of capital productivity and economic growth. By exploiting the microeconomic theory of the optimal financial contract under asymmetric information, economists have recently managed to shed new light on the well studied issue of the relationship between financial market development and economic growth. This paper reviews the most recent progress of this literature which shows that the amount of information asymmetry in the credit market and the degree of heterogeneity between borrowers (typically firms) and lenders (typically workers or savers) determine the nature of the financial system. Differences in endowments and in the level of information distribution can give rise to very different financial contracts which affect, and in turn are affected, by capital accumulation and growth.     

Traffic lights and food choice: A choice experiment examining the relationship between nutritional food labels and price

In this paper we investigate how consumers respond to the UK nutritional food label Traffic Light System (TLS). Employing a choice experiment (CE) we find that consumers appear to behave in a manner consistent with our expectations regarding the impact of the TLS. We identify a strong preference on the part of respondents to avoid a basket of goods containing a mix of foods with any “Red” lights. In addition, we find that consumers have a hierarchy of importance in terms of perception of the various nutrients examined and there are clear behavioural differences associated with particular socio-economic characteristics confirming early research on the use of nutrition labels. Overall our results indicate significant heterogeneity in the attitudes and responses of consumers to the TLS nutritional food labels within and across socio-economic strata.     

Analysing the Agricultural Costs and Non‐market Benefits of Implementing the Water Framework Directive

Implementation of the Water Framework Directive (WFD) represents a fundamental change in the management of water in Europe with a requirement that member states ensure ‘good ecological status’ for all water bodies by 2015. Agriculture is expected to bear a major share of WFD implementation costs as it is compelled to reduce the emission of diffuse water pollutants. The research outlined here comprises interdisciplinary modelling of agricultural land use, hydrology and consequent water quality effects to consider both agricultural costs and the non‐market recreational use (and potentially non‐use) values that implementation of the Directive may generate. A theme throughout the research is the spatial distribution of the costs and benefits of WFD implementation, which is addressed through the use of GIS techniques in the modelling of agricultural land use, the integration of land use and hydrological models, and the estimation, aggregation and transfer of the economic value of the benefits.     

Oil import costs and domestic inflation in industrial countries

Zusammenfassung Kosten der ?limporte und heimische Inflation in Industriel?ndern.- In diesem Aufsatz wird das monet?re Modell erweitert, um zu untersuchen, welche Bedeutung der kr?ftige Anstieg der Preise und Ausgaben für importiertes Erd?l in den Industriestaaten von Herbst 1973 bis heute hatte und über welche Kan?le er sich auswirkte. Die empirischen Ergebnisse zeigen, da\ die Inflation vorwiegend durch die Abwertung der W?hrung des Einfuhrlandes “importiert” wurde, die sich aus den stark gestiegenen Einfuhrrechnungen für Erd?l ergab, und weniger durch die Erh?hung der Erd?lpreise selbst, der L?hne oder Haushaltsdefizite. Die Zunahme der Geldversorgung und inflation?ren Erwartungen sind für die Erkl?rung der heimischen Inflation weit wichtiger, wenn es sich um Entwicklungsl?nder und nicht um Industriel?nder handelt. Das Gegenteil gilt hinsichtlich der Ausweitung der heimischen Produktion und Preiserh?hung für importiertes Erd?l.

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Résumé Co?ts de pétrole importé et l’inflation locale dans les pays industriels. - Dans cet article l’auteur étend le modèle monétaire pour examiner le mécanisme et l’effet de l’augmentation forte du prix et des dépenses pour le pétrole importé sur l’inflation dans les pays industriels à partir de la fin 1973 jusqu’aujourd’hui. Les résultats empiriques démontrent que l’inflation apparamment fut importée particulièrement par les dévaluations des monnaies des pays d’importation résultant de leurs dépenses fortement accrues pour le pétrole importé au lieu de directement par l’augmentation des prix pétroliers eux-mêmes ou par l’augmentation des salaires industriels et des déficits budgétaires. L’ augmentation de la masse monétaire et les expectatives inflationnistes sont beaucoup plus importantes comme explication de l’inflation locale dans les pays en voie de développement que pour les pays industriels pendant que le contraire est vrai pour l’expansion de la production locale et l’augmentation du prix de pétrole importé.

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Resumen El costo del petróleo importado y la inflación interna en los países industrializados.- En este trabajo se extiende el modelo monetario para examinar el impacto de las manifestaciones y la importancia relativa del aumento del precio del petróleo y del gasto para importarlo sobre la inflación en los países industrializados a partir del oto?o de 1973. Los resultados empíricos demuestran que la inflación pareciera haber sido importada através de las devaluaciones de las monedas de los países importadores, debido más al importante aumento de las importaciones que al aumento de los precios mismos del petróleo, o que a aumentos de los salarios industriales o del déficit fiscal. Los aumentos de la oferta monetaria y de las expectativas inflacionarias tienen mayor importancia para explicar la inflación interna en los países en desarrollo que en los países industrializados, mientras que sucede lo contrario con la expansión de la producción nacional y con el aumento del precio del petróleo importado.

     

Wheat breeding,productivity and slow variety change: evidence from the Punjab of India after the Green Revolution*

Variety change and genetic diversity are important means of combating crop losses from pests and diseases in modern agricultural systems. Since the Green Revolution, genetic diversity among wheat varieties released in India has increased but variety change on farms continues to be slow. In this article, we define and summarise indices of variety change and genetic diversity for the wheat varieties released and grown in Indian Punjab during the post‐Green Revolution period. We evaluate the effect of each index on technical efficiency with a Cobb‐Douglas yield model after testing for exogeneity. Findings support the hypothesis that slow variety change has offset the positive productivity effects of diversifying the genetic base in wheat breeding during the post‐Green Revolution period. Policies that speed the rate of variety change and contribute to a more equitable spatial distribution of modern varieties could support wheat productivity in the Punjab of India, reinforcing plant breeding successes.