Sector- and economy-wide effects of terminating the use of anti-microbial growth promoters in Denmark

In Denmark the poultry industry and the National Committee for Pig Production, together with the feedstuff industry, decided to voluntarily abolish the use of all Anti-microbial Growth Promoters (AGP). The poultry industry abolished the use of AGP from 15 February 1998 and the pig industry followed on 1 March 1998 (for pigs over 35 kg) and 1 January 2000 (for pigs under 35 kg). To evaluate the effects of the removal of AGP, data from both the poultry and pig industries were collected prior to and after the removal of AGP from animal feed. Utilizing these production data, this paper calculates economy-wide effects of the removal of AGP using the Agricultural Applied General Equilibrium (AAGE) model of the Danish economy. The results show that the long-term effects are a moderate decline in the production and export of pig meat, and a positive indirect effect on other industries including poultry due to lower rental rates for primary factor inputs. The overall implication is a small decline in real GDP of 0.03%, reducing public and private consumption by 68 DKK per capita per year in Denmark.     

Reconciling Gray and Hotelling

A bstract .   Early exhaustible resource economics provides an important foundation for recent suggestions that firm-level economic modeling plays a larger role in the analysis of resource scarcity. The lack of empirical support for Hotelling's r -percent rule, introduced in 1931, and recent suggestions that industry behavior may not be reducible to firm behaviors are the primary motivating factors for examining the relative value of Gray's contribution to the field of exhaustible resource economics relative to Hotelling's contribution. Specifically, Gray's papers that appeared in the 1910s provide insight into the heterogeneity of deposits and their spatial dimensions, and offer the possibility that firms will be subject to fixed costs carried over between periods. In this paper, the arguments presented by Gray are formalized in a dynamic model, which allows the differences between Gray's and Hotelling's assumptions to be more fully explored. The results of the paper illustrate that by considering spatially identifiable heterogeneous deposits, fixed costs, and entry costs, in general Hotelling's r -percent rule is not a sufficient condition for firm-level decision making and that firms' extraction behavior cannot be linearly aggregated to describe industry behavior.     

Financial comparability and environmental diversity: an international context

Accounting and environmental management both hold improved resource‐use efficiency as an ultimate goal, but intermediate processes and objectives vary and consequently it is separately assessed within each discipline. This paper intends to make visible the globalizing trends in accounting practice, which aim to standardize financial reporting to produce comparable information so that shareholders can maximize their economic wealth. This paper seeks to contrast this comparability strategy with the apparent need for diversity in accounting information exhibited by actual accounting practices, the information needs of environmental management and, ultimately, the cultural needs of sustainable development. We argue that a more pluralistic model, that enables a holistic assessment of corporate performance and balances diverse stakeholder objectives, is better suited to an uncertain future. Implementation requires accountants and environmental managers jointly to create and test a new order of reporting. There are many practical challenges but most significantly accountants and environmental managers must combine to enhance the visibility and credibility of these diverse performance measures. Copyright © 2002 John Wiley & Sons, Ltd. and ERP Environment     

Exports and technology in manufacturing industry

Zusammenfassung Exporte und Technologie der Verarbeitenden Industrie. — Die Verfasser nehmen die Behandlung der Technologie in der modernen Au\enhandelstheorie kritisch unter die Lupe. Unter Anwendung einer dynamischen Perspektive liefern sie einige neue empirische Erkenntnisse über die Beziehung zwischen der technologischen Wettbewerbsf?higkeit eines Landes und seiner Exportleistung. Anhand von fünf Industriel?ndern (Deutschland, Japan, Frankreich, Schweden und den Niederlanden) wird gezeigt, da\ es in dieser Hinsicht betr?chtliche Unterschiede zwischen den L?ndern gibt. Diese Unterschiede k?nnen teilweise auf l?nderspezifische Entwicklungspfade und auf Unterschiede in der Industriestruktur zurückgeführt werden, aber nach Ansicht der Autoren k?nnten sie auch durch eine unterschiedliche nationale Technologiepolitik beeinflu\t worden sein.

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Résumé Les exportations et la technologie des industries manufacturières. Cette étude examine le traitement du facteur de technologie dans la théorie moderne du commerce international. En utilisant une perspective dynamique, les auteurs donnent quelque évidence nouvelle pour la relation entre la compétitivité technologique et la performance dans le commerce international. En considérant cinq pays industriels (R.F.A., le Japon, la France, la Suède, et les Pays Bas), il est évident qu’il y a des différences remarquables entre ces pays. On peut attribuer ces différences aux processus du développement spécifiques de ces pays et aux différences entre la structure industrielle de ces pays examinés. Mais d’après les auteurs, ces différences pourraient être influencées aussi par les différences entre la politique de la technologie de ces pays.

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Resurnen Exportaciones y tecnologia en la industria manufacturera. — Este trabajo estudia el trato del factor tecnologia en la teoria moderna del comercio. Utilizando un enfoque dinámico se presenta evidencia empirica nueva de la relation entre la competitividad technológica y la performance del comercio. Considerando los casos de cinco paises industrials (Alemania, Japon, Francia, Suecia y Holanda) se demuestra que existen notables diferencias entre los países en este aspecto. Si bien estas diferencias se pueden atribuir parcialmente a las trayectorias de desarrollo especificas de cada pais y a diferencias en la estructura industrial, se sugiere que también podrian ser influenciadas por las diferencias entre las politicas tecnológicas nacionales.

     

Aggregate productivity and aggregate technology

Aggregate productivity and aggregate technology are meaningful but distinct concepts. We show that a slightly modified Solow productivity residual measures changes in economic welfare, even when productivity and technology differ because of distortions such as imperfect competition. Our results imply that aggregate data can be used to measure changes in welfare, even when disaggregated data are needed to measure technical change. We then present a general accounting framework that identifies several new non-technological gaps between productivity and technology, gaps reflecting imperfections and frictions in output and factor markets. Empirically, we find that these gaps are important, even though we abstract from variations in factor utilization and estimate only small average sectoral markups. The evidence suggests that the usual focus on one-sector DSGE models misses a rich class of important propagation mechanisms that are present only in multi-sector models.     

Bivariate garch estimation of the optimal commodity futures Hedge

Six different commodities are examined using daily data over two futures contract periods. Cash and futures prices for all six commodities are found to be well described as martingales with near-integrated GARCH innovations. Bivariate GARCH models of cash and futures prices are estimated for the same six commodities. The optimal hedge ratio (OHR) is then calculated as a ratio of the conditional covariance between cash and futures to the conditional variance of futures. The estimated OHRs reveal that the standard assumption of a time-invariant OHR is inappropriate. For each commodity the estimated OHR path appears non-stationary, which has important implications for hedging strategies.     

Budget deficits and interest rates in Germany

This study uses the basic tools of cointegration to determine whether there exists a long-term relationship between budget deficits and nominal interest rates in Germany. Maximum eigenvalue, trace, and likelihood ratio tests all affirm that there does apparently exist a long-term relationship between the budget deficit and the nominal interest rate. Accordingly, regression studies and formal causality tests have a reasonable basis for investigating whether budget deficits lead to higher interest rates in Germany.     

Energy and habitat: Designing a sustainable urban ecosystem

As the world's cities grow so new ways of satisfying their demands for food and fuel resources will have to be found, especially in the third world where total fuel demands are expected to expand several fold in one generation. An ecological model for a future complex urban community is presented to illustrate the place of energy in a growing system and how habitat—the physical component—possesses life cycles interdependent with living species. Recycling, biomass fuels, telecommunications, marine living and the propagation of viable organizations are all elements that will enable the globe to sustain future expanding metropolises.