美加两国联邦政府在水产养殖业中的作用比较

水产养殖业是一项基于自然资源的产业活动。世界各国政府已清醒地认识到,不恰当的法规和调控方式对水产养殖业发展具有巨大的阻碍作用。研究美加两国政府在水产养殖业发展过程中所发挥的作用,对我国水产养殖业的健康持续发展具有十分重要的借鉴意义。本文着重从中央政府(联邦政府)层面来分析美加两国政府在水产养殖业中的作用。     

美加两国实施ITQs制度之比较及启示

个别可转让配额(ITQs)制度是当前国际渔业管理中比较有效的一种管理手段,我国新版<渔业法>所规定的捕捞限额制度同ITQs制度没有本质上的差别.为了严格控制捕捞强度,加大渔业资源和环境保护力度,实施制度优势明显的捕捞限额制度已成为今后我国渔业制度发展的一个必然趋势.鉴于此,本文分析了美加两国引入ITQs的原因、ITQs的发展、ITQ制度的设计及其结果,并结合我国的具体国情提出了自己的观点.     

Harvesting Choices and Timber Supply among Landowners in the Southern United States

The recent rise of institutional timberland ownership has led to a significant change in the structure and conduct of the timber industry in the United States. In this study, we apply a two‐period harvest model to assess the timber harvesting behavior of various landowners at the stand level by utilizing USDA Forest Service Forest Inventory and Analysis data for nine southern states. Forest industry and institutional timberland owners were found to be more likely to conduct partial and final harvests than nonindustrial private forest landowners. Aggregately, Timberland Investment Management Organizations were found to be most, and timberland Real Estate Investment Trusts to be least, price‐responsive among ownership groups.     

The Influence of Exchange Rates on Red Meat Trade between Canada and the United States

The effect of exchange rates on the trade of red meat between Canada and the United States is an important policy issue. While Canadian producers benefit from higher livestock prices as the Canadian dollar declines in value, higher costs of feed grains and protein as well as macroeconomic effects offset much of the perceived gain. In this paper, these effects are quantified using a quarterly econometric model of the North American livestock sector in which both livestock and feed prices in Canada are linked, through exchange rates, to their counterparts in the United States market. The results suggest that devaluation leads to significant increases in Canadian net exports of beef and to small increases in net exports of pork. Both effects are small when compared with total North American trade and production. ?effet du taux ?échange sur le commerce de viande rouge entre le Canada et les Etats-Unis a de considérables implications sur les politiques agricoles. Bien que les producteurs Canadiens bénéficient lorsque les prix de la viande sont haussés par une dévaluation du dollar Canadien, ces gains sont réduits par des prix plus élevés pour les grains et les protéines de même que par des répercussions macroéonomiques. Dans cet article, les effets de changements dans le taux ?échange sont quantifiés par ?entremise ?un modèle économétrique trimestriel des secteurs bovins et porcins en Amérique du Nord. Les prix des animaux et des grains au Canada sont reliés à leurs vis-à-vis américains par le taux ?échange. Les résultats suggèrent qu' une dévaluation entraîne une hausse significative de ?exportation nette de boeuf et une faible augmentation de ?exportation nette de pore. Toutefois, les effets sont modestes lorsque comparés aux volumes de production et de ventes pour le marché Nord Américain.     

Status of Benefits Transfer in the United States and Canada: A Review

Benefits transfer refers to the use of existing benefit estimates in a different but similar context compared with the original study that generated the benefit estimates. Benefits transfer techniques include fixed value transfer, expert opinion and value estimator models. Although benefits transfer techniques are subject to a number of conceptual and empirical limitations, these techniques are widely applied by government agencies as input into economic assessments of public policies and projects.
Le concept d'estimation des avantages économiques par transposition de données connues s'applique à I'utilisation de données obtenues dans un certain contexte a un contexte distinct mais semblable par rapport à celui de l'étude originale. Il y a essentiellement trois variantes de cette démarche: à partir de valeurs fixes, de jugements experts ou de modèles estimateurs de valeurs. Bien que ces techniques soient exposées à un certain nombre de limites conceptuelles et empiriques, elles sont largement utilisées par les organismes gouvernementaux comme intrants pour l'évaluation economique de leurs programmes et de leurs projets.     

Heterogeneous Consumer Preferences for Turfgrass Attributes in the United States and Canada

This study investigates U.S. and Canadian consumer preferences and willingness to pay for turfgrass attributes and potential consumer market segments. Most studies focus on consumers’ preferences for low‐input turfgrasses at a state or regional level, but none have examined consumer preferences at a national or international level. In addition, we explore possible consumer preference heterogeneity and market segments. We find that one of the most influential turfgrass attributes for both U.S. and Canadian consumers is the ability to withstand foot traffic. Consumers’ preferences are greatly affected by maintenance attributes. Low mowing frequency, followed by water usage and fertilizer requirements, are considered the most important attributes for consumers. Generally speaking, many consumers are willing to pay high premiums for turfgrasses with lower maintenance requirements. Three consumer segments are identified based on participants’ heterogeneity in their preferences for turfgrass attributes: Balanced Consumers, Low‐input Conscious Consumers, and Appearance Conscious Consumers. Our results imply that breeding and promotion of low‐input turfgrasses species, which could benefit consumers and the environment, should receive greater attention from the turfgrass seed industry. Cette étude se penche sur les préférences des consommateurs américains et canadiens et leur volonté de payer pour des attributs du gazon, et les potentiels segments de marché grand public. La majorité des études se penche sur les préférences des consommateurs pour des gazons à faibles intrants au niveau de l′état ou régional. Aucune n'a encore examiné les préférences du consommateur au niveau national ou international. De plus, nous explorons l'hétérogénéité des préférences des consommateurs ainsi que les segments de marché. L'on constate que l'attribut du gazon ayant la plus grande influence sur les consommateurs américains et canadiens était la capacité de résister à la circulation piétonnière. Les préférences des consommateurs sont énormément influencées par les attributs d'entretien. La faible fréquence de tonte et les besoins en eau et en engrais représentent pour les consommateurs les plus importants attributs. En général, de nombreux consommateurs sont prêts à débourser plus pour des gazons qui nécessitent peu d'entretien. Trois groupes de consommateurs sont identifiés en fonction de l'hétérogénéité de leurs préférences pour les attributs du gazon: les consommateurs équilibrés, les consommateurs préoccupés par les faibles intrants et les consommateurs préoccupés par l'apparence. Les résultats suggèrent que la production et la promotion d'espèces de gazons à faibles intrants, bénéfiques pour le consommateur et l'environnement, devraient se trouver dans la mire de l'industrie semencière.     

Farm share of the food dollar: an IO approach for the United States and Canada

This article develops a method for using input–output data to calculate a farm share estimate for all food rather than the typical approach of estimating a price spread for an individual product. The farm share of the food dollar is approximately 14% in the United States and 17% in Canada. The farm share increased somewhat during the commodity price boom but has generally fallen steadily by approximately 20% since 1997. While the farm share of expenditures on food for home consumption is approximately 22% across both countries, it is 4% in the United States and 7% in Canada for meals consumed away from home. The empirical framework can be extended to other countries given the extensive use of System of National Account data making international and temporal comparisons possible across farm and food marketing systems.     

An Investigation into Factors Affecting the Occupational Choices of Nominated Farm Heirs in Ireland

The resilience of family farming is an important feature of the structure of the farming industry in many countries, due largely to the ‘smooth’ succession of farms from one generation to the next. The stability of this structure is now threatened by the widening gap between the income expected from farming when compared with non‐farming occupations in an economy like Ireland, operating at almost full employment. Nominated farm heirs are increasingly unlikely to choose full‐time farming as their preferred occupation. To identify the factors that affect this occupational choice, a multinomial logit model is developed and applied to Irish data to examine the farm, economic and personal characteristics that influence a nominated heir's decision to enter farming as opposed to some non‐farming occupation. The results show a significant negative relationship between higher education and the choice of full‐time farming as an occupation. The interdependence between education and occupational choices is further explored using a bivariate probit model. The main findings are: the occupational choice and the decision to continue with higher education are made jointly; the nominated heirs on more profitable farms are less likely to pursue tertiary education and therefore more likely to enter full‐time farming. The model developed is sufficiently general for studying the phenomenon of succession on farms.     

An Analysis of Removal of Agricultural Trade Barriers between the United States and Canada with Emphasis on the Southeast

A four-region, 23-commodity small world agricultural trade liberalization model within the SWOPSIM framework is used to measure the impact of tariff removal between the United States and Canada. The tariffs are simply defined as negative import subsidy equivalents in the model and are then removed from the trade prices. The model recalculates domestic supply and demand levels in all regions, rebalancing world trade, production, consumption and prices. In summary, the impacts of the Canada-U.S. Trade Agreement on selected commodity groups are significant. Canadian imports of beef and veal, poultry meat, soybean oil and fresh strawberries increase. Furthermore, the results indicate larger trade flows for selected products and declines in producer and consumer prices in Canada, U.S. and Southeast regions. Since the U.S. share of Canadian agricultural imports averaged 60% in the 1980s, the impact of trade liberalization will be greater in Canada in selected commodities than in the U. S. or the southeastern region, and Canadian dependence on the U.S. market will be increasing in the future. The tariff phaseout, together with a reduction in nontariff barriers and harmonizing of domestic agricultural policies, will create more export opportunities in selected commodities for both the United States and Canada, and will create the world's largest free trade market.     

The Potential for Increased Trade in Milk and Dairy Products between Canada and the United States under Trade Liberalization

Controversy surrounds the effect of free trade in milk and dairy products between Canada and the United States. A static, nonspatial, synthetic, partial equilibrium model is used to explore this issue. The results show that under any reasonable set of parameter estimates, net trade between Canada and the United States would be small, or zero. Free trade would be accompanied by large welfare losses for the current owners of Canadian milk production quota, but new entrants to the industry would earn more producer surplus under free trade than if they paid the full rental value for production quota under the current supply management policy.     

Nontariff measures and product differentiation: Hormone-treated beef trade from the United States and Canada to the European Union

We investigate how a combination of the sanitary and phytosanitary (SPS) measure and product differentiation affects beef trade and the consequences for the United States (US)–European Union (EU) hormone-treated beef trade dispute. We develop a partial equilibrium model to represent the global beef markets and product differentiation between non-hormone-treated beef, hormone-treated beef, and other beef. The results show that removing the SPS measure increases EU hormone-treated beef imports from the US and Canada and decrease beef consumption. In addition, EU hormone-treated beef consumption and imports can be related to a few key indicators of product differentiation. The framework we develop can estimate EU hormone-treated beef consumption and imports based on a minimum of parameters relating to product differentiation, thereby providing useful applied economic analysis of a key trade measure.