银行间债券市场7天回购利率影响因素的实证分析

我国银行间债券市场7天回购交易品种成交量大、交易活跃、参与机构多，其回购利率R07D也成为货币市场短期利率的重要基准。本文从资金面和政策面两个角度出发选取了若干R07D利率的影响因素，对从2001年1月至2006年6月的数据，运用协整、格兰杰因果检验、回归等计量方法进行实证分析，结果显示：央行票据发行利率、超额准备金利率、M2同比增长率、商业银行存贷比与R07D利率存在着长期的协整关系，是R07D利率变动的原因。     

Disciplinary sanctions in English Premiership Football: Is there a racial dimension?

This paper assesses the evidence for a racial difference in both the dispensation of formal disciplinary sanctions and in the number of fouls called by referees in professional football. The study uses a unique dataset comprising player match-level information drawn from five recent seasons of the English Premiership. These data were merged with data from other sources to identify, among other things, the racial affiliation of the player across four separate categories (viz., white, black, mixed race, and Asian). No systematic evidence of an unfair treatment of players from the non-white minority groups in respect of either the receipt of disciplinary cards or in the number of penalised fouls called by referees was detected.     

Does pay affect productivity or react to it?: Examination of U.S. manufacturing

There may be a bi-directional relationship between wages and labor productivity. According to conventional theory, employers reward improvements in productivity by raising pay. It also has been argued that wage increases can provide an incentive to improve productivity. This study applies a technique by Geweke to identify the feedback between pay and productivity in U.S. manufacturing. For the 1949–1998 period, measures of directional feedback indicate that both “pay as reward” and “pay as incentive” behaviors have occurred, but the results vary across manufacturing subsectors.     

Optimal bank asset and liability management with financial futures

This paper presents a model for optimal bank asset and liability management with financial futures. This model is a multiperiod linear programming model based on Markowitz portfolio theory. Given the bank's initial position, its economic forecasts, and the constraints under which it operates, the model can help a bank's senior executives determine the current and expected future balance sheet composition and financial futures position which will minimize the bank's operating risks and which will meet the bank's expected profits goal with the minimum possible profits risk. By parametrically varying the expected profits goal, the model will generate the set of risk-return efficient decisions. Bankers need then examine only the set of efficient decisions to choose their optimal solution. A simplified example is used to illustrate the application of our model and to demonstrate that banks that use financial futures in asset and liability management can obtain better results than banks that do not use financial futures.     

同时开市背景下AH股的股价联动性分析

文章选取57支A+H股票编制开盘价指数和收盘价指数,以2011年3月7日为分界点分为两个阶段,对A股和H股的股价之间的联动性,采用计量经济学方法进行实证研究。研究表明:同时开市之后A股和H股的股价联动性有所增强,H股股价对A股股价的影响更加明显。     

Commentary to “From new-product development to commercialization through networks”

This commentary essay explores some broader implications of the article by Aarikka-Stenroos and Sandberg (in this issue) concerning two issues: the principal character of innovation processes and the delineation of networks. The article provides an interesting discussion on how firms can overcome the obstacles of successful commercialization of innovations by the utilization of various types of networks involving developers, producers and users alike. This commentary recognizes two problems in this setting: An overly linear view on innovation processes and NPD, and an overly simplistic view on the delineation of networks.     

网上零售影响社会物流发展的定量分析

通过多元线性回归等方法分析,在其他因素不变情况下,发现网上零售交易规模的边际社会物流需求大于零并且呈现递减规律,网上零售市场发展可促进高效率物流对低效率物流的替代作用。     

标准化对我国出口贸易的影响

在标准主导国际竞争的时代,标准化已成为影响国际贸易的重要变量。本文选取1991-2010年的样本数据,在利用单位根检验对变量平稳性考察的基础上,采用协整检验方法对我国国家标准增量、外商直接投资额、人民币汇率和我国出口贸易额等变量的长期均衡进行了分析并作了误差修正和Granger因果检验。结果表明,外商直接投资额和人民币汇率与我国出口贸易存在正相关,而我国国家标准增量在短期内对我国出口贸易具有抑制作用,在长期内则对我国出口贸易具有促进作用。     

人民币实际汇率波动对中美贸易收支的影响——基于1990—2009年时间序列分析

基于协整理论、误差修正模型和格兰杰因果检验并根据中国和美国1990-2009年的季度数据,分析人民币实际汇率变动对中美贸易收支的影响.结果表明:影响中美贸易收支的主要因素包括美国的实际GDP、中国的实际GDP和人民币实际汇率,且三者的影响力次第减弱,中美贸易也存在明显的J曲线效应.因此,改善中美贸易失衡应扩大中国内需、调整业口结构和改革人民币汇率制度.     

基于VAR模型对投资、就业与经济增长的实证研究

本文选用中国1978～2007年30年的数据,基于VAR模型运用Granger因果关系检验、脉冲响应分析、方差分解等方法分析投资、就业与经济增长三者之间的关系。实证结果表明:经济增长既是就业的格兰杰原因,也是投资的格兰杰原因;投资是就业的格兰杰原因;就业和经济增长均不是投资的格兰杰原因。投资可以促进就业和经济增长,经济增长也可以促进就业。