An oligopoly model of ocean liner shipping

In this paper I develop a simultaneous equations oligopoly model of the regulated international ocean liner shipping industry. The firms act as a cartel to determine price jointly and then set their own quality levels to maximize individual profits. The cartel does not attain monopoly profits, because each conference member myopically determines quality without regard for overall cartel profits. The results indicate that an increase in the number of firms in the cartel will increase both cartel price and quality level. An increase in price will also lead to an increase in quality level.I would like to thank Professors Alamarin Phillips, Robert Summers, and Bruce Allen for their helpful comments on earlier research for my dissertation in the Economics Department of the University of Pennsylvania on which this work is based. I am especially grateful to Professor Lawrence J. White for his encouragement and valuable suggestions at various stages of my work.     

The Effects of Alternative Methods of Crow Benefit Payment on Economic Rents of Farm Input Suppliers in Western Canada

This paper uses a multi-market partial equilibrium model to assess the impact of selected alternative methods of payment of the Crow Benefit on the economic welfare of farm input suppliers for the feed grain sector in western Canada. the model is calibrated using data representative of the period from 1986 to 1988. Inputs are grouped into categories of land, labor, machinery and buildings, and other purchased inputs. Impacts of alternative policy regimes are found to differ substantially by the characteristics of the particular policy proposal and also by the nature of the input in question. Input suppliers would be worse off under the method of payment embodied in the so-called Gilson, 50:50 and Agricultural Diversification Alliance proposals, but would be better off under the Grain Trasportation Refund plan. Adverse impacts on landowne welfare, measured as percentage change in economic rents received, would be larger than the effects on other input suppliers, in some cases exceeding 10% of the rents received under the status quo. L'étude utilise un modèle multi-marchéàéquilibre partiel pour évaluer les incidences de diverses méthodes de paiement du montant compensatoire du Nid-de-Corbeau sur la situation économique des agrofournisseurs du secteur des céréles de provendes dans l'ouest du Canads. Le modèle est étalonné au moyen de données représentatives d'une période allant de 1986 à 1988. Les intrants sont groupés en catégories: fonds de terre, main-d'oeuvre, machinerie et bâtiments et autres fournitures achetées. Les effets des divers régimes diffèrent sensiblement par les caractères du projet do politique et aussi par la nature des intrants en question. La situation des fournisseurs serait empirée si l'on emploie la méthode de paicment comprise dans les programmes Gilson, 50:50 et Agricultural Diversification Alliance, mais elle serait meilleure avec le plan de remboursement sur le transport du grain. Les effets négatifs sur la situation des propriétaires de terre, mesurés par le changement en pourcentage du loiyer économique reçu, étaient plus importants que les effets sur les autres catégories d'agrofournisseurs, dépassant parfois 10% du loye reçu dans le régime actuel.     

Transatlantic Differences in Consumer Preferences

Transatlantic Differences in Consumer Preferences The EU prohibits imports of hormone-treated beef and is about to impose labelling and traceability requirements on GMOs. Both policies have created growing unease on the part of exporting countries. The EU claims that public health concerns and consumers' preferences justify the trade restrictions, while exporters maintain that the rules serve primarily to protect domestic agriculture by limiting international competition. In a consumer study in France, Germany, the UK, and the US, we determine if consumers' preferences, as reflected in willingness-to-pay estimates, are different across the Atlantic. Our study covered two products: beef from cattle treated by hormones and from cattle fed genetically modified corn. Our results suggest that French consumers are willing to pay more than US consumers for beef from cattle not administered hormones. There are, however, no significant differences among German, UK and US consumers. In contrast, consumers in France, Germany and the UK are willing to pay more for beef from animals not fed GM corn than are US consumers. Given these results and current policy developments, it seems unlikely that the EU will retract its labelling requirements on GM food and feed, and future trade disputes are likely to emerge. Des consommateurs différents d'une rive de l'Atlantique à l'autre l'Union Européenne interdit l'importation de viande aux hormones, et s'apprête à imposer des normes d'étiquetage et de traçabilité pour les OGM. Dans chaque cas, les pays exportateurs ont été choqués par ces politiques. l'UE soutient que la santé publique et les préférences des consommateurs justifient de telles entorses au libéralisme, cependant que les pays exportateurs restent dans l' idée qu'il ne s'agit là que de moyens de protéger ragriculture rationale de la concurrence internationale. Nous avons essayé de vérifier si les préférences rationales, telles qu'elles sont définies par le consentement à payer, sont réellement différentes d'une rive à l'autre de l'Atlantique, à partir de l'étude d'un échantillon de consommateurs recrutés en France, Grande Bretagne, Allemagne et Etats Unis. Notre étude concerne deux produits:le bœuf traité aux hormones, et le bœuf nourri au maïs génétiquement modifyé. Les résultats montrent que les Français sont mieux disposés que les Américains à payer plus cher du bceuf non traité aux hormones. En dehors de cela, il n'y a pas de grosses différences entre les consommateurs anglais, allemands, et américains pour ce produit. Par contre, pour ce qui concerne le bœuf nourri au maïs OGM, il apparaît que les Britanniques, les Français et les Allemands sont bien plus disposés que les Américains à payer un surprixpour l'éviter. Dans ces conditions, et au vu des derniers développements politiques, on ne voit pas comment éviter que l'UE ne maintienne ses exigences en matière d'OGM pour l'alimentation humaine ou celledu bétail, ce qui entraînera sans doute une nouvelle guerre commerciale. Transatlantische Unterschiede bei verbraucherpräferenzen Die EU verbietet den Import von ormonbehandeltem Rindfleisch und wird in Kürze Rückverfolgbarkeit und Kennzeichnungspflicht bei GVOs verlangen. Diese beiden Maßnahmen werden von den Exportländem mißbiliigt. Die EU beruft sich darauf, dass diese Handelsrestriktionen durch die Sorge um die öffentliche Gesundheit und durch die Verbraucherpräferenzen gerechtfertigt seien. Die Exporteure führen an, dass diese Verordnungen primär dem Schutze der einheimischen Landwirtschaft dienten, da sie den internationalen Wettbewerb einschränken. In einer Verbraucherstudie in Frankreich, Deutschland, Großbritannien und den USA wird anhand von Schätzungen der Zahiungsbereitschaft ermittelt, ob es bei den Verbraucherpräferenzen tatsächlich transatlantische Unterschiede gibt. Die Studie umfasste zwei Erzeugnisse: Rindfleisch von hormonbehandelten Tieren und von Tieren, die mit genetisch verändertem Mais gefüttert worden waren. Die Resultate legen es nahe, dass französische Verbraucher mehr als US amerikanische Verbraucher bereit sind, einen höheren Preis für Rindfleisch von Tieren zu zahlen, welchen keine Hormone verabreicht wurden. Es sind jedoch keine signiflkanten Unterschiede zwischen deutschen, britischen und US-amerikanischen Verbrauchern vorhanden. Andererseits sind Franzosen, Deutsche und Briten mehr als US-amerikanische Verbraucher bereit, einen höheren Preis für Rindfleisch von Tieren zu zahlen, welche nicht mit genetisch verändertem Mais gefüttert wurden. In Anbetracht dieser Ergebnisse und der aktuellen politischen Entwicklungen erscheint es unwahrscheinlich, dass die EU die Verordnung zur Kennzeichnung von genetisch veränderten Lebensmitteln und Futtermitteln zurücknehmen wird. Zukünftige Handelskontroversen sind zu erwarten.     

AIDS is your business

If your company operates in a developing country, AIDS is your business. While Africa has received the most attention, AIDS is also spreading swiftly in other parts of the world. Russia and Ukraine had the fastest-growing epidemics last year, and many experts believe China and India will suffer the next tidal wave of infection. Why should executives be concerned about AIDS? Because it is destroying the twin rationales of globalization strategy-cheap labor and fast-growing markets--in countries where people are heavily affected by the epidemic. Fortunately, investments in programs that prevent infection and provide treatment for employees who have HIV/AIDS are profitable for many businesses--that is, they lead to savings that outweigh the programs' costs. Due to the long latency period between HIV infection and the onset of AIDS symptoms, a company is not likely to see any of the costs of HIV/AIDS until five to ten years after an employee is infected. But executives can calculate the present value of epidemic-related costs by using the discount rate to weigh each cost according to its expected timing. That allows companies to think about expenses on HIV/AIDS prevention and treatment programs as investments rather than merely as costs. The authors found that the annual cost of AIDS to six corporations in South Africa and Botswana ranged from 0.4% to 5.9% of the wage bill. All six companies would have earned positive returns on their investments if they had provided employees with free treatment for HIV/AIDS in the form of highly active antiretroviral therapy (HAART), according to the mathematical model the authors used. The annual reduction in the AIDS "tax" would have been as much as 40.4%. The authors' conclusion? Fighting AIDS not only helps those infected; it also makes good business sense.     

Predicting nurses' organizational and professional identification: the effect of nursing roles, professional autonomy, and supportive communication

Recruiting and retaining qualified nursing staff is of growing importance to today's hospital and nurse leaders. Findings from a survey completed by 190 RNs at a major teaching hospital revealed that nursing roles, professional autonomy, and supportive communication were differentially related to the nurses' organizational and professional identification. Professional autonomy was by far the strongest predictor of nurse identification, followed by manager and co-worker support. Co-worker support and traditional nursing roles predicted nurse professional identification, but neither traditional nor collaborative roles predicted nurses' identification with their organization. Communication strategies intended to help executives retain qualified nursing staff are presented.     

Communities Of Practice, Foucault And Actor-Network Therory

The paper discusses some of the main contributions to the theory of communities of practice (COP theory), especially as it relates to organizational learning. The paper does not attempt a full overview but concentrates on the notion of power relations. Early COP theory was formulated as part of situated learning theory, and promised to work on issues of social context and unequal power relations. Foucault's work and actor-network theory (ANT) is introduced and forms the basis of a constructive critique of COP theory. The paper argues that COP theory and ANT can enrich each other and together make a stronger contribution to our understanding of organizational learning. Specifically, these perspectives question the value in viewing organizations as formal, canonical entities as far as learning and change are concerned.     

Nonparametric Estimation of Returns to Scale: Method and Application

The paper describes a method of estimating variable returns to scale in production that adaptively fits spline functions, using model selection criteria, to determine the appropriate number and location of break points for a fixed factor of production. Unlike other approaches, the method obtains nonparametric estimates of variable returns to scale for small samples while ensuring global curvature and flexibility properties are maintained. An application of the method is presented using data from the British Columbia sablefish fishery.
Les auteurs décrivent une méthode d'estimation des variations de rentabilité en fonction de l'échelle de production susceptibles de s'ajuster è des fonctions spline, utilisant des critéres modèles de sélection pour déterminer le nombre et la situation des seuils de rentabilité pour unfacteur de production fixe. À la différence d'autres avenues d'analyse, la méthode permet d'obtenir des valeurs non paramétriques de la rémunération variable selon l'échelle, è partir de petits échantillons, tout en garantissant le maintien de la courbure générale et de la souplesse d'application. Les auteurs proposent une application de la methode, utilisant les données des pêches de morue charbonnière en Colombie-Britannique.     

Power, Development, and Institutional Change: Participatory Governance in the Lower Mekong Basin

One of the central challenges for the multitude of actors concerned with the governance of transboundary river basins is how to produce meaningful mechanisms for promoting the participation of a broad cross-section of actors in resource planning and management decisions. This paper elucidates recent efforts to enhance policies of public participation within the context of governance in the Lower Mekong basin. The paper concludes that while the obstacles to institutionalizing public participation are substantial, some modicum of genuine participation, that may in time contribute to a broader project of transformation, can emerge within intergovernmental development institutions, albeit through surprising means.     

Technology,Trade Sensitivity,and Labor Displacement

This study examines the relationship between international trade, technology, and exposure to job displacement, using data on displaced workers as well as those at risk of job dislocation, for the two-year sample periods 1986-1987 and 1990-1991. Workers employed in manufacturing industries with elevated import penetration or high shares of R&D personnel appear to have increased rates of job loss. However, the risk of job loss is materially reduced when a relatively high proportion of employees report working with computers. The opposing effects on displacement probabilities of R&D employment intensity and computer-use carry over to the nonmanufacturing sector.