金融危机背景下汽车企业竞争优势来源研究

在综合和阐明竞争优势内涵的基础上,重点对汽车企业竞争优势的来源进行研究。从效率、品质、客户响应和创新等四个构成要素切入,对通用汽车和丰田汽车的竞争优势开展了比较分析。由此得出三点结论:同种类型的企业在相同的环境中可能表现各异,竞争优势构成要素之间存在关联性,企业的创新能力是实现竞争优势可持续性最根本的保证。     

土钉喷锚支护技术在新疆基坑支护中的应用

本文介绍了土钉喷锚支护技术在医院综合楼基坑支护设计和施工中的应用,分析了复合土钉作用机理,验算了土钉支护结构的稳定性、安全性。对复合土钉墙的设计、施工工艺进行了较详细的阐述。通过监测支护结构水平位移认为:土钉喷锚网支护技术在本工程的应用是成功的。     

The kernel trick for nonlinear factor modeling

Factor modeling is a powerful statistical technique that permits common dynamics to be captured in a large panel of data with a few latent variables, or factors, thus alleviating the curse of dimensionality. Despite its popularity and widespread use for various applications ranging from genomics to finance, this methodology has predominantly remained linear. This study estimates factors nonlinearly through the kernel method, which allows for flexible nonlinearities while still avoiding the curse of dimensionality. We focus on factor-augmented forecasting of a single time series in a high-dimensional setting, known as diffusion index forecasting in macroeconomics literature. Our main contribution is twofold. First, we show that the proposed estimator is consistent and it nests the linear principal component analysis estimator as well as some nonlinear estimators introduced in the literature as specific examples. Second, our empirical application to a classical macroeconomic dataset demonstrates that this approach can offer substantial advantages over mainstream methods.     

基于ISM模型的P2P网络借贷系统协同运营影响因素分析

对P2P网络借贷系统进行概念界定和结构解析,总结P2P网络借贷系统协同运营机理，探寻P2P网络借贷系统协同运营的影响因素。基于ISM模型构建P2P网络借贷系统协同运营影响因素之间的层级关联结构，ISM模型分析结果显示，借款收益、出借人对平台的信任、政府资金投入为P2P网络借贷系统协同运营最直接影响因素，而借款人的硬信息以及银行对平台的监管是P2P网络借贷系统协同运营的根源影响因素。最后，根据分析结果为宏观调控者提出政策建议。     

Analysis on pure e-commerce congestion effect,productivity effect and profitability in China

This paper examines the relationship of e-commerce congestion effect, productivity effect and profit generation in China. The technique of Data Envelopment Analysis (DEA) is used to measure returns to scale and total factor productivity in e-commerce. The results show that e-commerce firms achieve productivity growth but suffer from input congestion. Congestion weakens profitability and leads to negative returns of inputs to outputs. This finding offers a new insight to explain the determinants of profit change. This research enriches production theory of internet companies, and helps managers strengthen their profitability by measuring the existence of congestion and eliminating input congestion resources.     

新结构主义框架下的经济增长核算 ——来自 95个发展中国家面板数据的实证分析

新古典主义与结构主义均未能很好地解释二战以来发展中国家经济增长的差异。林毅夫认为发展中国家的产业结构只有遵循其要素禀赋结构时才符合比较优势,经济也才最富有竞争力。本文对技术选择指数进行了修正,并基于95个发展中国家的面板数据对"林毅夫经济增长命题"进行检验。结果显示,发展中国家的经济增长率与技术选择指数存在着倒"U"型关系,即在给定要素禀赋结构条件下存在着最优的产业结构,从而为"林毅夫经济增长命题"的存在提供了经验证据。     

企业对外直接投资实现盈利的一种解释——中国因素论

近年来中国对外投资迅猛发展,但现有理论无法解释中国企业对外投资实现盈利的基础。本文在综合分析现有成果的基础上,通过模型分析,创造性地提出中国企业对外直接投资实现盈利的一种理论解释即中国因素论,给出基于"中国因素论"的四种盈利模式:局部成本优势,品牌渠道扩展,技术外溢效应和销往中国策略,并分析了四种模式下实现盈利的条件。结合中国企业对外直接投资的实践,分析中国因素论在实践中的应用。     

Asymmetric dependence structures for regional stock markets: An unconditional quantile regression approach

Owing to the asymmetry of stock markets, this study investigates the dependence structures for six regional stock markets according to different market conditions by applying the unconditional quantile regression (UQR) approach. This approach can address the traditional conditional quantile regression (CQR) approach’s limitation that its distributions are defined conditional on specific covariates. Specifically, we not only examine the detailed linkages among these six regional stock markets, but also explore the effect of global economic factors on them, given the strengthening of both international investment and the globalization of financial markets. The results show these dependence structures are often an asymmetric U-shaped or inverted U-shaped structure, which indicates that the impacts of both other geographically and economically close stock markets and economic factors are more pronounced during bear and bull markets than during normal markets, especially so in bear markets. Moreover, the UQR approach provides stronger extreme-value relationships and more significant asymmetric effects than the traditional CQR approach.     

Efficiency and capital adequacy in Taiwan banking: BCC and super-DEA estimation

In this study the researchers adopt two DEA methods – Banker-Charnes-Cooper and Super Efficiency – to investigate whether a bank's technical efficiency is significantly different when capital adequacy (risk) is specified compared with when capital adequacy (risk) is not specified. The information is obtained from 46 Taiwanese banks for the period 2000 to 2002. The Malmquist total factor productivity (TFP) index is employed to measure the impact of productivity change on the panel data. The empirical results from the DEA approach are summarized as follows: (1) Capital adequacy is proven to be an influential factor in evaluating the efficiency of banks. (2) The average efficiency scores of banks with high capital adequacy (>8%) are significantly higher than those of banks with lower capital adequacy (<8%). (3) The efficiency scores of banks with high risk capital requirement (above the average) are higher than those of banks with lower risk capital requirement (under the average). (4) Banks with both high capital adequacy and high risk capital requirement are superior in performance than all the other banks, while banks with both low capital adequacy and low-risk capital requirement performance are the worst by contrast. (5) Based on the Malmquist total TFP index, we find that bank productivity has not increased.     

论新时期专家型校长的教育理念

在对黑龙江省54名中小学校长进行问卷调查的基础上,本文运用SPASS13.0软件对调研结果进行了分析,并对新时期专家型校长的教育理念内涵、关键因素及形成条件进行了研究。