Application of replacement theory in dairy cows and its use in disease treatment

A model to simulate the costs and returns of an individual dairy cow over 14 years under various assumptions of genetic potential, health status and management was developed especially to evaluate the effects of diseases that reduce production and reproduction efficiency and to evaluate alternative management interventions. Data were collected from the Food Animal Health Resource Management System (FAHRMX), Today's Electronic Planning (TELPLAN), Today's Electric Farm Accounting (TELFARM) databases and secondary sources at Michigan State University. A case study of cystic ovaries was analysed using the model. The results showed that it is more economical to treat cystic ovaries than not to treat, and treatment with Gonadotropin Releasing Hormone (GNRH) was superior to Human Chrionic Gonadotropin (HCG). Four to five lactations were the optimum for keeping a dairy cow to replacement and it was estimated that there is a loss of US$0.45 per day of extended calving interval (days open beyond the optimal 70 days).     

The complex integration strategies of multinationals and cross country dependencies in the structure of foreign direct investment

The behavior of many multinational enterprises is not well described by existing models of foreign direct investment (FDI). Firms often follow strategies that involve vertical integration in some countries and horizontal integration in others, a strategy known as complex integration. This paper presents a three-country model that is used to analyze why firms might follow a strategy of complex integration. My analysis reveals that complex integration strategies create complementarities between potential host countries that have important implications for the structure of FDI. The analysis also shows that falling transport cost between countries may increase the importance of complex integration strategies.     

Advertising with Subjective Horizontal and Vertical Product Differentiation

In this paper, we analyze the impact of advertising on markets wheresubjective horizontal and vertical product differentiation are important. A simple model showshow advertising can be used to create subjective horizontal and vertical differentiation.The model predicts that firms are likely to be symmetric when advertising creates subjective horizontaldifferentiation and that name and generic brands are most likely to coexist in markets whereadvertising creates subjective vertical differentiation. In all cases, the ability toadvertise creates distance between products which increases the market power of firms. Finally, severalreal world examples are used to illustrate the conditions under which the model is most relevant.     

美国注册会计师行业面临的困境及对我国的启示

随着美国大批跨国巨头财务丑闻纷纷落马，美国知名会计师事务所也因参与或涉嫌造假，出具虚假审计报告而被接二连三地曝光，美国整个注册会计师行业面临着诚信危机。通过回顾美国注册会计师行业的发展历程及我国注册会计师行业现状的透视，从四个方面提出了美国注册会计师行业给现状同样不容乐观的中国注册会计师行业的启示：(1)加强注册会计师行业诚信意识的培育，并明确诚信责任；(2)完善注册会计师行业相关制度的建设并严格执行；(3)合理规范与调整会计师事务所业务范围；(4)加快整合步伐，积极锻造自身的品牌。     

供应链管理模式下零库存理论及其在企业中的应用

主要分析了影响企业库存管理的因素，介绍了实现企业零库存的主要方法，针对目前国内企业的库存现状，提出了实现零库存的库存控制理论、实施方法和途径及在实现过程中应注意的问题。     

The Robustness of the APT to Alternative Estimators

We test the robustness of the APT to two alternative estimation procedures: the Fama and MacBeth (1973) two-step methodology; and the one-step procedure due to Burmeister and McElroy (1988). We find that the APT is indeed sensitive to the chosen estimator and assumptions about the factor structure of stock returns. We believe that our findings have implications for the estimation of asset pricing models in general.     

构建中型商业银行竞争优势策略研究

随着商业银行主体意识和危机意识的不断增强．“营销管理”也不断被商业银行所采纳、运用，逐步渗透到其经营活动中。从而形成了新一轮竞争的特点。规模不同、地位不同的竞争个体，其营销战略选择是不一样。正是基于此，本文把我国商业银行划分为三类：国有商业银行、中型商业银行和地区性商业银行。国有商业银行特指四大国有商业银行；中型商业银行是指全国性的新兴股份制商业银行：地区性商业银行是指其他机构网点仅限于当地的银行机构。     

中澳农产品贸易互补性与竞争性分析

中澳都是农产品生产大国，两国农产品贸易发展迅速。本文运用修正的显示性比较优势指数、贸易强度指数、产业内贸易指数和出口产品相似度指数等分析了中国与澳大利亚农产品贸易的互补性和竞争性。研究结果表明中澳农产品在主要出口市场上的竞争性也不强，农产品双边贸易的互补性较强，但中国在双边贸易中的逆差状况很难逆转。中国应加强与澳大利亚在农业领域的合作以获得更多贸易以外的利益。