Testing of the rational expectations and structural neutrality hypotheses

In this paper we examine the tests of the new classical rational expectations and structural neutrality hypotheses undertaken by Leiderman (1980) using a model of money growth and unemployment for the United States developed by Barro (1977). Employing the data used in the studies by Barro and Leiderman we are able to construct an alternative model of money growth and unemployment against which the Barro-Leiderman model is rejected along with the joint hypothesis of rational expectations and structural neutrality.     

《说文解字》含“皃”字释义语研究

《说文解字》的体例通常包括解释字义和分析字形,其中解释字义的部分称为释义语。通过分析研究,我们发现在《说文解字》中存在着包含＂皃＂字的这一类特殊的释义语。含＂皃＂字释义语在分布的部首方面具有规律性,其语法结构分类具有多样性,同时在与含＂也＂字释义语的比较中,体现出了自身的特殊性。     

Structural FECM: Cointegration in large‐scale structural FAVAR models

Starting from the dynamic factor model for nonstationary data we derive the factor‐augmented error correction model (FECM) and its moving‐average representation. The latter is used for the identification of structural shocks and their propagation mechanisms. We show how to implement classical identification schemes based on long‐run restrictions in the case of large panels. The importance of the error correction mechanism for impulse response analysis is analyzed by means of both empirical examples and simulation experiments. Our results show that the bias in estimated impulse responses in a factor‐augmented vector autoregressive (FAVAR) model is positively related to the strength of the error correction mechanism and the cross‐section dimension of the panel. We observe empirically in a large panel of US data that these features have a substantial effect on the responses of several variables to the identified permanent real (productivity) and monetary policy shocks.     

美国经验对优化我国农村创业融资环境的启示

我国农村地区掀起了一轮新的创新创业的热潮,但融资难严重制约了农村创业企业的数量和质量发展.美国自20世纪60年代开始致力于中小企业发展的若干做法,特别是改善中小企业融资困境的经验非常值得我们学习和借鉴.因此,应建立健全有利于农村创业融资的法律法规,大力发展农村金融机构,加快金融创新步伐,进一步完善中小企业信用担保体系,明确政府职责,充分发挥市场机制的作用.     

浅谈图书馆电子阅览室的创新管理

近几年来,随着我国科学技术发展脚步的不断加快,越来越多的先进设备被应用到图书馆电子阅览室中,在增加阅览室服务功能的基础上,也给图书馆电子阅览室的管理带来了挑战。这里主要对我国目前图书馆电子阅览室管理中存在的问题进行分析,并在此基础上结合电子阅览室的发展前景,提出对图书馆电子阅览室管理的改善建设,以此来将图书馆电子阅览室的作用最大限度的发挥出来。     

It is where you are that matters: the spatial determinants of rural poverty in India

The spatial patterns of poverty in India are of considerable importance in themselves and for development theory and practice. This article examines the determinants of rural poverty in India using spatial econometric methods. It finds that while agricultural growth is the key determinant of rural poverty declines, there is significant spatial dependence in the growth rates of agricultural output. Irrigation is the primary driver of agricultural growth, and spatial variations in irrigation development seem to be associated with agro‐ecological conditions which may be vastly different within Indian states, parts of which may be similar to those prevailing in geographically contiguous states. Poverty reduction strategies need to be designed in the light of spatial factors and using spatial methods.     

两起雷击伤亡事故分析

通过对两起雷击事故深入分析,得到了输电线路附近和土壤电阻率畸变处易遭受雷击的规律,并探讨了该现象的原因。同时,本文讨论了雷电引起跨步电压的成因和危害,进而解释了为何同一次雷击事故会造出有人伤亡而有人却安然无恙?最后依据雷电的典型值,定量分析了雷击的安全距离。     

杀菌剂现场投加方案优化

通过对胜利油田注入水SRB含量的现状调查,分析影响SRB达标率的主要原因。通过现场投加方式的优化,有效控制系统SRB的滋生,保证水质沿程稳定。     

我国民营企业管理机制创新研究

30年来,伴随着市场化改革的深入,我国民营经济无论是规模和效益都得到了迅猛发展,在我国经济和社会发展中发挥着不可替代的作用。现阶段民营企业在管理中也存在诸多不容回避的问题,阻碍其健康成长。正确认识民营企业现状,实现管理机制创新是当前民营企业走向可持续发展的必由之路。