Alliance portfolio diversity and firm performance

In this paper, we offer a comprehensive alliance portfolio diversity construct that includes partner, functional, and governance diversity. Grounding our work primarily with the resource‐ and dynamic capabilities‐based views, we argue that increased diversity in partners' industry, organizational, and national background will incur added complexity and coordination costs but will provide broadened resource and learning benefits. Increased functional diversity results in a more balanced portfolio of exploration and exploitation activities that expands the firm's knowledge base while increased governance diversity inhibits learning and routine building. Hypotheses were tested with alliance portfolio and performance data for 138 multinational firms in the global automobile industry during the twenty‐year period from 1985 to 2005. We found alliance portfolios with greater organizational and functional diversity and lower governance diversity were related to higher firm performance while industry diversity had a U‐shaped relationship with firm performance. We suggest firms manage their alliances with a portfolio perspective, seeking to maximize resource and learning benefits by collaborating with a variety of organizations in various value chain activities while minimizing managerial costs through a focused set of governance structures. Copyright © 2010 John Wiley & Sons, Ltd.     

基于改进型主成分分析法的食品供应商评价模型研究

根据食品行业的特点建立供应商评价指标体系，利用改进型主成分分析法消除评价指标之间相关影响，减少指标选择的工作量，并通过专家打分及相关的评价指标建立判别模型对备选的供应商进行筛选，然后选择最优的供应商。最后通过实例分析验证了该方法的有效性，对企业选择物流供应商具有一定参考价值。     

高职院校实践基地建设功能分析

把价值工程方法中的功能分析引入高职院校实践基地的建设过程中,构建高职院校实践教学基地功能系统图,利用价值工程中的功能评价方法来确定高等职业院校实践基地应该具备的各种功能、各功能在整个体系中的权重,并在建设中赋予相应成本。     

山东科技金融绩效评价——基于主成分分析的DEA研究路径

本文以主成分分析方法进行指标蕴含信息的整合,重新组合一组线性无关的综合性指标,运用数据包络分析方法(DEA)对山东省科技金融投入进行效益评价。研究结果表明,山东省2000—2010年的金融投入重数量、轻质量,重速度、轻基础,呈现出DEA无效状态。基于此,山东省科技金融发展应转变发展方向,走可持续、集约化的发展路径。     

Debt monetization,inflation, and the ‘neutral’ interest rate

The main purpose of this study is to explore the potential expansionary effect stemming from the monetization of debt. We develop a simple macroeconomic model with Keynesian features and four sectors: creditor and debtor households, businesses, and the public sector. We show that such expansionary effect stems mainly from the reduction in the financial cost to servicing the public debt. The efficacy of the channel that operates allegedly through the compression of the risk/term premium on securities is found to be ambiguous. Finally, we show that countries that issue their own currency can avert getting stuck in a structural ‘liquidity trap’ provided their central banks are willing to monetize the debt created by a strong enough fiscal expansion.     

战略性行为下主导企业对集群实施CSR的作用机制

集群是一个复杂的自组织网络,实施CSR是集群可持续发展的必然选择。集群中主导企业因其特有的优势和地位,对集群实施CSR具有关键性的作用。本文研究表明,主导企业对集群实施CSR的带动作用主要分为三个阶段,并体现出三种不同的作用形式。针对研究结果,本文就集群实施CSR提出了相关政策建议。     

公众安全感测评体系及实证研究

公众安全感是居民对社会治安状况的主观感受和客观评价。通过对宝山区公众安全状况的调研,构建了公众安全感的评价指标体系,并且运用相应的评价方法——利用主成分分析法衡量测评地区的综合治安水平,利用聚类分析法明确测评地区的分类和定位。由此也可以为相关单位和专业人士提供一个可行的指导方法。     

Renminbi Internationalization： Progress, Prospect and Comparison

Using principal component analyses, this paper constructs two internationalization indices for the renminbi (RMB) and 32 other major currencies. We find that the RMB's currency internationalization degree index (CIDI) is still low, and far behind the 4 most important international currencies. In 2009, it was ranked 18th among all important international currencies. However, in terms of the currency internationalization prospect index (CIPI), the RMB has remained the world's fifth highest since 2006. Although it is still far behind the US dollar and the euro, surpassing the ranking of the yen and the pound is possible in the near future. The dramatic difference in the ranking between the CIDI and the CIPI is a result of China's tight capital account control, the usage continuity of international currency due to network externalities, and the narrow foreign exchange and imperfect financial markets. Hence, to a large degree, the RMB's potential as an international currency depends on China's capital account liberalization.     

利用少量标签训练集的半监督OLTV算法的设计

目前,大多数半监督学习算法都要使用大量的带标签训练样例集,当只有一个带标签训练样例时许多方法便不再适用。因此,基于两个充分视图工作的OLTV算法被提出来了。本文实现了此算法,并对充分视图的构建进行了讨论。对于特定的数据集,首先对它进行属性划分,得到两个充分视图;然后再执行OLTV算法,这样由一个初始标签训练样例便可以得到两个新的标签样例。最后在公共数据集上的实验验证了所提出算法的有效性。     

Factors Influencing Restaurant Selection by Travelers Who Stop at Visitor Information Centers

This article reports the findings of an exploratory study defining expectations for restaurants of travelers who stop at visitor information centers. Using data collected from 2, 712 summer travelers, four factors that explain consumer expectations are discussed: information, restaurant basics, amenities, and health. Travelers rated attributes such as cleanliness, food quality, and friendliness of staff as most important. Suggestions are given for developing promotional materials for attracting travelers to restaurants.