Scale Economies and Inefficiency of U.S. Dairy Farms

This study employs data drawn from the 2000 Agricultural Resource Management Survey, a U.S. Department of Agriculture-sponsored farmers' survey. The article estimates returns to scale relationships across dairy farms of different sizes and across different regions, incorporating variables hypothesized to influence farm performance. Results point to significant scale economies in U.S. dairy farms and underscore the importance of taking account of inefficiency when estimating scale economies. Contrary to previous research, the preferred cost function specification does not show a region of decreasing returns to scale. This finding helps explain why the average size of dairy farms has been increasing.     

木材加工企业规模结构及经济性研究

认识木材加工企业的规模以及效率问题,对产业政策制定有重要的指导意义。以2004年山东省经济普查数据为基础,运用统计分析、比较分析等手段,对山东木材加工工业的规模结构、影响因素以及规模经济性展开了讨论。认为:木材加工业企业规模受技术进步、资源和市场以及政策影响;在当前条件下,木材加工业具有企业规模小、集中度低的特征,产业发展更倾向于通过外部规模经济途径实现。     

Size and Productivity in the U.S. Milling and Baking Industries

From the late 1950s through mid-1990s, productivity growth in U.S. grain milling and feed manufacturing has been consistently strong and positive. In grain milling, approximately 15% of the growth is due to size economies. Technical change has been capital-using, increasingly material-saving, and, in recent years, decreasingly labor-saving or increasingly labor-using. The quality of capital has risen relative to that of labor and materials. In all but the baking industry, capital intensification and incentives for plant size growth remain unabated.     

Market and Cost Structure in the U.S. Beef Packing Industry: A Plant-Level Analysis

A resurgence of consolidation in the U.S. meat packing industry in the past few decades has stimulated academic and policy debate. Issues raised include the role of cost economies in driving these patterns, and the effects on the agricultural sector (cattle producers) from market power. Here, plant level cost and revenue data for U.S. beef packing plants are used to estimate a cost-based model incorporating cattle- and output-market pricing behavior. The robust results indicate little market power exploitation in either the cattle input or beef output markets, and that any apparent evidence is counteracted by cost efficiencies such as utilization and scope economies.     

Nonlinear Dynamics and Structural Change in the U.S. Hog–Corn Cycle: A Time-Varying STAR Approach

The linearity of the U.S. hog–corn cycle has been questioned by Chavas and Holt (1991) . Even so, attempts have not been made to model the potential nonlinear dynamics in the hog–corn cycle by using regime-switching models. One popular alternative is Teräsvirta's smooth transition autoregressive (STAR) model, which assumes regime switching is endogenous and potentially smooth. In this article, we examine monthly data for the U.S. hog–corn cycle, 1910–2004. A member of the STAR family, the time-varying STAR, is fitted to the data and its properties examined. We find evidence of nonlinearity, regime-dependent behavior, and time-varying parameter change.     

Issues Affecting the U.S. Poultry Industry and International Poultry Trade

Abstract

This study was conducted to examine issues and concerns that may affect the future direction of the U.S. poultry industry and international poultry trade. Given the economic contribution of the poultry industry, it is important to have some understanding about the future direction of the industry, both at the national and international levels. To generate the information required, this study surveyed the top poultry producers in the country as well as specialists and experts in the industry. Although both the producers and specialists believe that the industry has a bright future, they also think that the rapid production growth experienced by the poultry industry in the past two decades cannot be sustained. Growth restrictions in the industry will come from a variety of sources such as environmental waste management, food safety, labor shortages, animal welfare, and increased foreign competition.     

Vertical Economies and the Structure of U.S. Hog Farms

Scale economies are often touted as the factor behind the trend in the structure of the U.S. hog industry toward fewer and larger hog farms. However, since hog production is multistage and farms either integrate or separate the stages, the appropriate measures are multistage economies. In theory, a smaller and, presumably, high‐cost operation, by the standards of single stage/output scale economies, may still be cost‐competitive if it enjoys multistage economies — that is if vertical scope economies more than offset stage‐specific scale diseconomies. Whether that holds in practice remains heretofore unexplored in the agricultural economics literature. Using a unique data set on hog farms in the U.S. Midwest, we estimate a multistage cost function and provide the first‐ever estimates of multistage economies, stage‐specific economies, and vertical scope economies in hog production. Les économies d'échelle sont souvent soupçonnées d'être le facteur qui influence la tendance observée dans la structure de l'industrie porcine aux États‐Unis, soit des porcheries moins nombreuses mais de plus grande taille. Cependant, comme la production porcine est une production à plusieurs stades et que les producteurs peuvent choisir d'intégrer ces stades ou d'exploiter un seul stade, les mesures appropriées sont les économies d'échelle liées aux stades multiples. En théorie, une petite porcherie, qui a probablement des coûts élevés selon les critères des économies d'échelle liées à un seul stade, peut tout de même être concurrentielle quant aux coûts si elle profite des économies d'échelle liées aux stades multiples, c'est‐à‐dire si les économies de gamme verticales font plus que compenser les déséconomies d'échelle liées à un seul stade. La vérification de cette théorie dans la pratique demeure, jusqu'ici, inexploitée dans la littérature agroéconomique. En utilisant un ensemble de données sur des porcheries situées dans le Midwest américain, nous avons estimé une fonction de coût lié aux stades multiples et nous présentons les premières estimations d'économies d'échelle liées aux stades multiples, d'économies d'échelle liées à un seul stade et d'économies de gamme verticales dans la production porcine.     

Mergers and Acquisitions and Productivity in the U.S. Meat Products Industries: Evidence from the Micro Data

This article investigates the motives for mergers and acquisitions (M&As) in the U.S. meat products industry from 1977 to 1992. Results show that acquired meat and poultry plants were very productive before mergers, and that all but the very largest meat slaughter and processing plants and all but the bottom 20% of the poultry slaughter and processing plants significantly improved their productivity growth in their postmerger periods. These results lead to the conclusion that synergies and related efficiencies are important motives for M&As.     

Technology, Labor Wars, and Producer Dynamics: Explaining Consolidation in Beefpacking

Beefpacking underwent a dramatic transformation in the 1970s and 1980s, as plants got much larger and industry concentration rose dramatically. We use individual Census Bureau plant records to analyze the sources of the transformation. We find that there were modest but extensive scale economies in packing plants, covering the full range of plant sizes, and that such economies became more important throughout the period of the study. As production shifted to larger plants, we estimate that the industry's aggregate processing costs fell by 35.3% by 2002, compared to what they would have been without consolidation.     

Technical and Organizational Change and Economies of Scale and Scope in Developing Countries

This article examines the impact of flexible automation (FA) and associated organizational techniques on scale and scope economies and optimal scale. It is based on an in-depth survey of 62 engineering firms in Brazil, India, Mexico, Thailand, Turkey and Venezuela. The paper finds that the replacement of old, mainly conventional, machine tools and transfer lines by new computer-numerically-controlled machine tools and related FA has resulted in lower economical batch sizes and the manufacturing of growing variety, making it possible to reap economies of scope. Scale and scope economies at product level have, however, reinforced scale economies at plant level, resulting in higher levels of optimal output. The main factors accounting for such impact are the reduction in the number of operations required, the improved efficiency and accuracy of the new technologies and the much higher capital fixed costs vis-a ¤ -vis the technologies that were replaced. Higher plant scales could limit the potential for industrialization in developing countries.     

Environmental Regulation and the Spatial Structure of the U.S. Dairy Sector

Substantial public scrutiny about adverse environmental impacts of the dairy sector has resulted in increased environmental regulations. A behavioral model of location and production is developed to examine the impacts of environmental regulations, traditional location factors, and agglomeration economies on the spatial structure and geographical location of dairy production. The results show that counties in the states with more stringent environmental regulations tend to lose dairy inventories to those with less stringent policies. There are substantially meaningful spatial patterns of dairy production. Current dairy production levels are positively correlated while changes in production levels are negatively correlated across counties.     

Technological Change and Welfare in an Open Economy with Distortions

Traditional measures of technological change, such as the rate of technical change, are based on producer-oriented prices. Here, we employ a general equilibrium analysis of an open economy to examine how the consumer welfare gain from a technological change, measured as Hicksian equivalent variation, is related to the rate of technical change, the biases of the technological change, and tax distortions in the economy. An analytical solution shows these relationships in a readily computable framework, and demonstrates that the rate of technical change will equal the rate of welfare change in only very unrealistic cases.     

美国农业经济学科变迁及对中国的启示

本文对美国农业经济学科不同发展阶段进行了总结,描述了美国农业经济学科如何从传统农业经济学逐渐拓展到资源与环境经济学、农村社区管理和AgribusinesS的过程,美国农业产业变迁、就业市场变动和产业外部环境变化是导致美国农业经济学科变迁的根本原因。最后,结合当前中国农业经济学科的现状,提出了相关学科发展的建议。     

Country of Origin Labeling and Structural Change in U.S. Imports of Canadian Cattle and Beef

Mandatory country of origin labeling (COOL) has become a thorny issue in U.S.–Canada bilateral trade relations. We undertake an ex post investigation of the impact of the law on U.S. imports of Canadian beef, feeder, and fed cattle. Using a partial equilibrium framework, we derive U.S. import demand equations for Canadian cattle and beef, and employ the Bai and Perron (1998, 2003) procedure for detecting multiple structural breaks with break points being endogenously determined. We find evidence that COOL may have caused significant structural change in U.S. imports of Canadian feeder and fed cattle. L’étiquetage du pays d'origine obligatoire est devenu un sujet épineux des relations commerciales entre le Canada et les États‐Unis. Dans la présente étude, nous effectuons une analyse ex post des répercussions de la Loi sur les importations américaines de viande de b?uf, de bovins d'engraissement et de bovins finis. À l'aide d'un modèle d’équilibre partiel, nous avons dérivé des équations de demande d'importation de bovins et de viande de b?uf de la part des États‐Unis et nous avons utilisé les tests de Bai et Perron (1998, 2003) pour déceler les ruptures structurelles multiples, dont les points de rupture ont été déterminés de façon endogène. Les résultats de notre étude montrent que l’étiquetage du pays d'origine peut avoir causé un changement structurel considérable sur les importations de bovins d'engraissement et de bovins finis.     

The Cost Effectiveness of the U.S. Export Enhancement Program Bonus Allocation Mechanism

The U.S. Export Enhancement Program is evaluated from the perspective of the cost effectiveness of its bonus allocation mechanism. The current mechanism resembles a discriminatory-price, common-value auction. However, auction theory suggests that a discriminatory auction may not be optimal in this setting for several reasons. This article evaluates the current format relative to an alternative, uniform-price auction. Estimation results reveal evidence of strategic bidder behavior under the current format and simulations suggest that adopting a uniform-price auction format for bonus allocation may yield considerable savings to the Treasury by eliminating incentives to pad bids and increasing participation in the auction.     

经营规模、契约特征对新型农业经营主体农地整治积极性的影响——基于5省15县的调研

研究目的：分析经营规模、农地契约特征对农业经营主体农地整治行为与程度的影响。研究方法：采用Probit和Tobit模型对465位经营者调查数据进行实证分析。研究结果：（1）对于绝大多数农业经营主体,经营规模扩大对农地整治积极性存在微弱的负向影响;（2）农地经营面积和转入比例对土地类整治积极性存在负向影响,但相对设施类整治,农业经营者开展土地类整治的积极性更低;（3）契约价格、契约形式、契约对象为村集体、转入农地时具有担保等契约特征对农业经营者农地整治积极性存在显著影响,但契约时长的影响并不显著。研究结论：现阶段要提高新型农业经营者的农地整治积极性,有必要从多方面完善农地契约,而扩大农地流转规模和延长契约期限不一定有效。     

Output and input bias effects of U.S. direct payments

This study examines the national effect of U.S. direct payments on the extent and direction of biased technical change on U.S. agriculture. We also assess the economic significance of the estimated bias effects for economic policy modeling endeavors involving a reduction of domestic support payments. A two outputs (livestock and crops) and four inputs (labor, capital, land, and material) translog cost function was estimated from national time series (1948–2011) data. Results indicate that payments do not induce output‐biased technical change. We do find evidence of Hicksian bias that is land using and material input saving attributable to support payments. Global computable general equilibrium simulations suggest that price and output effects of discontinuing direct payments are 1/4 to 1/3 the size once the bias effects are incorporated.     

技术进步的经济效益与环境成本弹性变化——基于环境污染变动率的实证分析

从总量上来说,经济增长通常会引起环境污染的增加,但从经济效益与环境成本的比较角度考虑,有必要从效率(单位成本的经济产出)变化趋势的角度分析技术进步所对应的经济增长变化率与环境污染变化率之间的关系。本文运用全国30个省份的数据进行技术进步的环境成本-经济效益分析。结果显示:技术进步所引起的GDP增长变动率大于环境污染的变动率,并且环境污染物的净排放量增长速度在降低,在经济增长的变动率大于环境污染的变动率的同时,经济增长的变动率仍然在逐年递增。技术进步的经济效益和环境成本在空间和时间上存在异质性,中东部地区技术进步的经济效益比西部更为显著。为了实现经济的健康清洁发展,应该不断地促进技术进步,充分发挥技术进步的作用,并根据城乡差别有针对性地提高其经济效率。