利率市场化的国际经验及借鉴

全球利率市场化浪潮始自70年代,20多年来,无论是发达国家还是发展中国家或地区,都经历了一个从利率管制到利率自由化的过程.本文对近20年来,推行利率自由化的主要国家和地区做一个鸟瞰,并对其经验和教训做出总结.在此基础上,提出可供我国利率市场化的有益借鉴.     

经济对煤炭的依赖与煤炭对经济的贡献分析

本文在全面分析了煤炭消费与国民经济发展关系的基础上，采用定量分析的方法，对近期我国经济对煤炭的依赖程度和煤炭对国民经济的贡献率、吨煤经济效益进行了计算分析。研究结果表明：从过去20多年来看，我国经济发展对煤炭的依赖度并没有发生根本性的变化；“十一五”期间，我国煤炭生产和主要用煤行业对GDP总量和增量的总贡献率分别为15％和18％左右。     

A new weighted distribution as an extension of the generalized half-normal distribution with applications

In this study, a new extension of generalized half-normal (GHN) distribution is introduced. Since this new distribution can be viewed as weighted version of GHN distribution, it is called as weighted generalized half-normal (WGHN) distribution. It is shown that WGHN distribution can be observed as a single constrained and hidden truncation model. Therefore, the new distribution is more flexible than the GHN distribution. Some statistical properties of the WGHN distribution are studied, i.e. moments, cumulative distribution function, hazard rate function are derived. Furthermore, maximum likelihood estimation of the parameters is considered. Some real-life data sets taken from the literature are modelled using the WGHN distribution. It is seen that for these data sets the WGHN distribution provides better fitting than the GHN and slashed generalized half-normal (SGHN) distributions.     

我国的通货膨胀与名义利率粘性:长期与短期费雪效应

弱费雪效应和名义利率粘性是货币政策有效的前提。本文使用傅里叶变换处理实际利率的时变性，扩展协整模型用以考察长期的费雪效应，并建立门限误差修正模型区分长期和短期的费雪效应，刻画名义利率短期的动态调整特征。基于我国1990年1月至2017年12月的月度数据研究发现：（1）我国名义利率和通货膨胀之间存在长期的弱费雪效应；（2）名义利率的短期动态调整特征存在显著的双重门限效应，在名义利率过度高于均衡值时会出现显著而快速的调整，而当名义利率低于均衡值或处于中间机制时，均没有发现显著的调整，即名义利率存在粘性。研究结果表明：当前阶段数量型货币政策在我国依然有效，因而存在综合使用数量型货币政策和价格型货币政策的空间。     

Effects of international student exchange on pre-service teachers: a quasi-experimental study

This contribution provides empirical answers to the question of how teaching-specific competencies develop during participation in an international student exchange programme. The quantitative analyses of this quasi-experimental study suggest that, generally speaking, no specific developments occur during an exchange experience. These findings contradict the majority of existing literature. Possible reasons for this divergence are discussed. The interpretation of the results suggests future research should focus on the key question of pre-conditions for productive exchange experiences.     

Kernel estimations for multivariate density functional with bootstrap

In this article the bootstrap method is discussed for the kernel estimation of the multivariate density function. We have considered sample mean functional and constructed its consistency and asymptotic normality by bootstrap estimator. It has been shown that the bootstrap works for kernel estimates of multivariate density functional. The convergence rate with bootstrap for density has been proved. Finally, two simulations of application are given.     

The statistical impact of inflation on interest rates

Understanding the behavior of interest rates is of central importance in finance. This is due to the fact that interest and forward rates serve as underlyings for many fixed income products. Furthermore, interest rate-based quantities may be used as numeraires when it comes to computing present values of future payoffs. An important macroeconomic factor which is likely to trigger interest rates is inflation. In this paper we extend a well-known continuous time interest rate model by incorporating inflation. Finally, we apply a statistical test to real data to explore the goodness-of-fit of the inflation-based model.     

A Convolution Estimator for the Density of Nonlinear Regression Observations

Abstract. The problem of estimating an unknown density function has been widely studied. In this article, we present a convolution estimator for the density of the responses in a nonlinear heterogenous regression model. The rate of convergence for the mean square error of the convolution estimator is of order n ^?1 under certain regularity conditions. This is faster than the rate for the kernel density method. We derive explicit expressions for the asymptotic variance and the bias of the new estimator, and further a data‐driven bandwidth selector is proposed. We conduct simulation experiments to check the finite sample properties, and the convolution estimator performs substantially better than the kernel density estimator for well‐behaved noise densities.     

基于文化交流视角的河南高校大学英语教学模式探讨

随着国际交流的不断深入,文化交流正日益成为不同国家及民族间建立互信和沟通心灵的重要工具。因此,大学英语的教学目标应作出相应调整,将过去以培养语言技巧为主改以培养学生的综合应用能力,尤其是学生的文化交际能力为主。河南高校大学英语教学应培养学生的跨文化意识,提高学生的文化敏感度和鉴赏力,帮助学生树立正确的文化观,努力适应社会和时代的发展要求。     

Are High-Performance Work Systems always a valuable retention tool? The roles of workforce feminization and flexible work arrangements

High-Performance Work Systems (HPWS) are commonly related to higher rates of employee retention. However, variations in such rates arising from differences in workforce gender composition have hardly been studied, so the aim here is to address these issues based on a sample of British workplaces. It is hypothesized that HPWS have reduced retention outcomes in highly feminized workplaces as compared to less feminized ones. An exploration is also made of how HPWS operate in conjunction with the provision of Flexible Work Arrangements (FWAs) to affect retention across both types of workplaces. The results suggest that workforce gender composition does indeed matter when it comes to the relationship between HPWS and retention. Contrary to expectations, the provision of FWAs alongside HPWS appears to be a less-than-optimal approach to retain employees, particularly in highly feminized workplaces.