Human capital,trade, and economic growth

Human Capital, Trade, and Economic Growth. — Human capital, because of its special role in innovative activity and technological progress, has formed the bedrock of the new theories of endogenous growth. However, it not only serves as an engine of growth but also as a productive input along with labor and physical capital. In this study, the authors find evidence of the importance of both roles of human capital. They also find that the relationship between growth and the external effects of human capital vary according to trade regime. When literacy rates are relatively high, open economies grow about 0.65 to 1.75 percentage points more than closed economies.     

Reforming Hungarian agricultural trade policy: A quantitative evaluation

Reforming Hungarian Agricultural Trade Policy: A Quantitative Evaluation. — In this paper, the authors quantitatively assess the consequences for Hungary of: (i) removing its quantitative import restraints in agriculture, (ii) removing the export subsidy program in agriculture, and (iii) adopting an EU-type “CAP” system in Hungary. The consequences are estimated through the use of a small open economy computable general equilibrium model for Hungary, calibrated to the year 1990. The tariff equivalent of the import licenses was estimated through a detailed price comparisons study, the first of its kind for Hungary. Import protection, export subsidies and a potential CAP system would contribute significantly to the Government's fiscal problems.     

Model-free portfolio theory: A rough path approach

Based on a rough path foundation, we develop a model-free approach to stochastic portfolio theory (SPT). Our approach allows to handle significantly more general portfolios compared to previous model-free approaches based on Föllmer integration. Without the assumption of any underlying probabilistic model, we prove a pathwise formula for the relative wealth process, which reduces in the special case of functionally generated portfolios to a pathwise version of the so-called master formula of classical SPT. We show that the appropriately scaled asymptotic growth rate of a far reaching generalization of Cover's universal portfolio based on controlled paths coincides with that of the best retrospectively chosen portfolio within this class. We provide several novel results concerning rough integration, and highlight the advantages of the rough path approach by showing that (nonfunctionally generated) log-optimal portfolios in an ergodic Itô diffusion setting have the same asymptotic growth rate as Cover's universal portfolio and the best retrospectively chosen one.     

The liability to consumers of manufacturers of defective goods — An Australian perspective

There is an increasing tendency for consumers to regard the manufacturer as being primarily responsible for the safety and quality of consumer goods, even though in many if not most legal systems the common assumption by the consumer that the manufacturer rather than the retailer bears the primary liability for defective goods is not in fact correct. The legal position of the consumer in Australia under the general law of contract and tort is outlined as a background to the reforms made in 1978 by an important amendment to the Federal Trade Practices Act. A manufacturer (or importer) of consumer goods now is bound by statutory obligations, enforceable by the consumer, in respect of the quality of his goods. He is also bound by any express warranty given by him, and is liable where the goods require to be repaired or where replacement parts are required, but repair facilities or spare parts are not reasonably available. Except in the case of the obligations relating to the provision of spare parts and repair facilities, the manufacturer's statutory obligations cannot be excluded or limited. The Act also contains provisions limiting the time during which a consumer can commence an action against a manufacturer.Although the author considers that there are some defects in the legislation, he concludes that it represents a significant advance in the legal protection of the consumer's economic interests. There is a need for the expansion of existing mechanisms for the informal resolution of consumer claims, but the author also believes that the existence of the new legislative code setting out reasonably clearly defined rights will often in practice greatly strengthen the position of government agencies and others in attempting to negotiate a settlement on behalf of a consumer. Damages recoverable by a consumer from a manufacturer extend to consequential losses, including death or personal injury. As a result, a measure of strict liability for personal injury caused by defective products has been imposed on manufacturers. The legislation does not, however, offer a comprehensive regime of strict liability for personal injury and many anomalous situations will arise. The author considers that there is therefore a need in Australia for a review of the whole question of strict liability for personal injury caused by defective products, although even were this to occur there would still exist a strong need for a scheme such as that discussed in the article to govern the claim of a consumer for economic losses caused by the supply of defective or inferior products.

---

Die Haftung des Warenherstellers bei Mängeln der Sache — eine australische Position zum Verbraucherschutz

Zusammenfassung Konsumenten gehen in immer stärkerem Maße davon aus, daß primär der Hersteller für die Güte und Sicherheit von Bedarfsgegenständen verantwortlich ist. Dem steht bislang die Rechtstradition der meisten Länder entgegen, wonach der Verkäufer und nicht der Hersteller primär für Fehler und Mängel verantwortlich ist.Der Aufsatz stellt die rechtliche Stellung des Konsumenten in Australien vor dem Hintergrund allgemeiner vertrags- und deliktsrechtlicher Regelungen dar. 1978 ist durch eine Novelle des Federal Trade Practices Act eine wichtige Reform eingeführt worden. Der Hersteller oder Importeur von Verbrauchsgütern (consumer goods) ist jetzt kraft Gesetzes, das vom Verbraucher im Klagewege durchgesetzt werden kann, einstandspflichtig für die Qualität seiner Waren. Er ist gleichermaßen unter einer Garantieerklärung haftbar. Er hat auch dafür einzustehen, daß Güter, die Wartung, Reparatur oder Ersatzteile benötigen, ordnungsgemäß und zu vernünftigen Bedingungen gewartet werden können. Die Pflichten des Herstellers können durch vertragliche Abrede nicht ausgeschlossen oder eingeschränkt werden, mit der Ausnahme der Wartungsverpflichtung. Die Novelle enthält schließlich Bestimmungen über Ausschluß- und Verjährungsfristen für die Ansprüche des Verbrauchers, wobei sie sich an den EG-Richtlinienentwurf zur Produkthaftung anlehnt.Auch wenn der Autor einige Vorschriften der Novelle kritisch würdigt, so geht er davon aus, daß sie einen wichtigen Fortschritt im rechtlichen Schutz der wirtschaftlichen Interessen des Verbrauchers darstellt. Daneben besteht weiterhin ein Bedarf zur Verbesserung der Rechtsdurchsetzung, aber die Existenz der Novelle und der dort enthaltenen klar definierten Pflichten des Herstellers erleichtert staatlichen Behörden und anderen den Schutz der Rechte des Konsumenten. Die vom Hersteller zu liquidierenden Schäden betreffen auch Folgeschäden einschließlich Tod und Personenschäden. Im Ergebnis haftet der Hersteller ohne Verschulden für Produktfehler. Allerdings ist die Gesetzeslage nicht vollständig befriedigend; es fehlt ein umfassendes System der Gefährdungshaftung für Produktfehler, etwa gegenüber Dritten, die das fehlerhafte Produkt lediglich benutzen, ohne es selbst gekauft zu haben. Nach Auffassung des Autors muß deshalb in Australien die Produkthaftung für Personenschäden neu überdacht werden. Daneben bleibt die — durch die Novelle befriedigte — Notwendigkeit, den Verbraucher gegenüber Vermögensschäden bei Lieferung eines mangelhaften Produktes dadurch zu schützen, daß man ihm einen Direktanspruch gegen den Hersteller zuerkennt.

---

---

David Harland is Professor of Law, University of Sydney Law School, 173–175 Phillip Street, Sydney, N.S.W. 2000, Australia.     

EXPLAINING THE DISTRIBUTION OF QUOTA RENTS FROM US CHEESE IMPORTS

A theoretical model is outlined to illustrate how rents are generated from import quotas. The model is used to estimate rents from US cheese import quotas; rents are substantial. Relative rent capture by importers and exporters is explained by estimating an industrial organisation-type model. Unequal market power is important in explaining the distribution of rents between importers and exporters. Exporters tend to maintain price-cost margins and let importers capture a larger share as rent size increases.     

AN ECONOMIC RESPONSE MODEL OF HERBICIDE APPLICATION FOR WEED CONTROL

A biologically realistic model of crop yield response to herbicide application is presented. It includes functions for weed mortality from herbicide application and yield loss due to surviving weeds. The optimal herbicide rate and two types of decision thresholds are derived theoretically and illustrated with empirical examples. Responses of the various decision criteria to changes in parameters are also examined theoretically and empirically. A multidimensional threshold for weeds based on weed density and weed-free yield is presented. The issue of farmers using other than officially recommended herbicide rates is discussed.     

Modern rice technology and regional wage differentials in the Philippines

Fear has been widely expressed that the modern rice varieties have created large disparities in regional income distribution, as the productivity gap between favorable and unfavorable rice-production environments widened due to differential technology adoption throughout South and Southeast Asia over the last two decades. Technology affects the income of farm population directly through its effects on productivity and factor use, and indirectly through its effect on factor prices. In particular, the ultimate distributional impact of modern varieties will critically depend on the interregional labor-market adjustments through migration in response to regional wage differentials created by the differential technology adoption, since labor is the main resource of the majority of the rural population. We studied favorable and unfavorable rice-growing villages in the Philippines, and found that adoption of modern varieties during the 1970s was positively related to population growth rate. Contrary to popular belief, no association was observed between wage rates and adoption of modern varieties as of 1986. These findings support the hypothesis that the differential adoption of modern rice varieties induced interregional labor migration toward equalization of wage income across different production environments.