浅议如何充分发挥银行内部审计建设性职能

目前，中国建设银行已建立了总行垂直管理的内部审计体制，内部审计的地位得到了进一步的巩固和加强，管理层对内部审计也提出了更高的要求。本文就如何发挥审计的建设性职能，最大程度地做好审计增值服务，促进银行价值和运作效率的提升，实现审计职能从查错防弊向防护决策和建设性方面转变做初步探讨。     

关于铁路精益生产指标体系及其作用的经济学分析

在铁路精益生产制推行过程中,要特别重视指标体系的构建及其作用的发挥。考核指标体系构建紧密结合铁路运输生产特点和生产流程,以完整运输产品供给为导向,以信息化为基础,以组织模式优化为保障,注重精益生产考核指标体系的激励性。     

Unit roots and infrequent large shocks: new international evidence on output

The nature and magnitude of the economic shocks that have affected the per capita GDP of 16 OECD countries are analyzed over a long period using the outlier method. Strong proof of infrequent large permanent and transitory shocks were found, essentially resulting from the two major wars in the twentieth century, the recession in the 1920s, the Great Depression, among others. We also examine the nature of the output trend by combining different tests of non-stationarity on different GDP series corrected by the outliers detected. It is shown that the per capita GDP series cannot reject the unit root hypothesis in 13 of the 16 countries examined. No conclusion could be drawn for the other countries because the test results were contradictory.     

Entry and growth in a perfectly competitive vintage model

A perfectly competitive vintage-knowledge model of Schumpeterian growth is introduced to study the relation between growth, technology-lifetime, entry, and productivity-dispersion. The incentive to innovate is generated by the productivity-dispersion (latent in traditional vintage models) between new and old plants, rather than by monopoly rents. The model has a unique steady-state REE with endogenous growth. The endogenous extent of entry constitutes a buffer, dampening the effect of research-efficiency and completely neutralizing the effect of population size or population growth rates on per-capita income levels and growth rates. Variations of research-efficiency lead to a negative relation between growth and vintage-lifetime and a non-monotonic relation between growth and productivity-dispersion.     

METROPOLITAN HOUSE PRICES IN SOUTH AFRICA: DO THEY CONVERGE?

The question this paper investigates is whether or not different metropolitan areas each constitute a separate housing market or whether or not there is a single South African housing market. Theory on the Law of One Price suggests that if products or geographic areas belong in the same market, their absolute prices must converge, so that their relative prices are stationary. By using cross-sectional time series data of five metropolitan areas, the paper tests for the Law of One Price by applying the Im, Pesaran and Shin panel unit root test. The paper finds strong evidence of convergence in large middle-segment house prices and weaker support for convergence in medium middle-segment house prices. In addition, the paper finds no evidence for convergence in small middle-segment house prices. This suggests the existence of a national market for large and possibly middle-segment houses in metropolitan areas, but separate metropolitan markets for small middle-segment houses. In addition, the paper estimates the speed of convergence and finds that large middle-segment house prices converge within two to seven quarters, while the speed of convergence for medium middle-segment house prices in three of the five areas is five to eight quarters.     

Hedging,Financing and Investment Decisions: A Simultaneous Equations Framework

We empirically investigate the interactions among hedging, financing, and investment decisions. We argue that the way in which hedging affects a firm's financing and investing decisions differs for firms with different growth opportunities. We find that high growth firms increase their investment, but not leverage, by hedging. However, we also find that firms with few investment opportunities use derivatives to increase their leverage.     

社会主义市场经济的矛盾和问题

市场经济的主要矛盾是生产与消费的矛盾，它决定商品与货币、供给与需求、总供给与总需求的矛盾。社会主义市场经济的主要矛盾是社会主义制度与市场经济体制的矛盾。当前存在的主要问题是生产相对过剩、消费需求不足，分配不够公平、贫富差距过大，市场秩序混乱、腐败现象严重，资源消耗过度、环境状况恶化，等等。只有正确处理社会主义市场经济的矛盾和问题，处理好公有制和私有制、计划与市场、效率与公平、自力更生与对外开放等各方面的关系，才能促进国民经济又好又快地发展。     

Technical Efficiency Estimates of Scottish Agriculture: A Note

Within the UK there has been a lack of studies of technical efficiency at the Scottish level. This note compares the results obtained using Scottish data with a recent study by Hadley [Journal of Agricultural Economics (2006) Vol. 57, pp. 81–100] for English and Welsh farms. Four major sectors are investigated, namely: (i) cereals, (ii) dairy, (iii) sheep and (iv) beef over the period 1989 to 2004. Some distinct differences in efficiencies, returns to scale and causes of efficiency are found.     

Separating microstructure noise from volatility

There are two variance components embedded in the returns constructed using high frequency asset prices: the time-varying variance of the unobservable efficient returns that would prevail in a frictionless economy and the variance of the equally unobservable microstructure noise. Using sample moments of high frequency return data recorded at different frequencies, we provide a simple and robust technique to identify both variance components.     

"双主型"大学英语教学模式研究

双主教学模式是一种能有效发挥教师主导作用和学生主体作用的教学模式.采用这种教学模式,可以有效地发挥学生思维能力、培养其综合应用能力.在现代信息技术手段日益获得提高的今天,充分利用网络资源的辅助作用,建立双主型大学外语教学模式,是高校大学英语教学改革的一种尝试.