短波跳频电台的发展趋势

本文根据短波跳频电台的发展趋势，重点分析了研制短波数字跳频电台所涉及的若干关键技术问题。     

国际垂直专业化对劳动力就业结构的影响——基于中国工业行业数据的实证检验

国际垂直专业化对参与国的劳动力就业结构产生了重要影响。本文考察了国际垂直专业化总体、不同伙伴国、不同技术密集度的行业对中国劳动力就业结构的影响,研究结果表明,国际垂直专业化增加了高技能劳动力的相对就业,但是这种效应不显著;承接OECD国家的生产环节转移促进高技能劳动力的相对就业,承接非OECD国家的生产环节转移降低高技能劳动力的相对就业;不同技术密集度的工业部门参与国际垂直专业化对劳动力就业结构存在“部门偏倚”效应,承接高技术密集型行业的生产环节转移显著促进高技能劳动力的相对就业,承接低技术密集型行业的生产环节转移降低高技能劳动力的相对就业,但是这种效应不显著。     

利益相关者视角下的高技术上市公司绩效评价研究

因子分析法是多指标综合评价的一种理想方法。选取高技术上市公司为样本,采用因子分析法对高技术上市公司的业绩进行综合评价,以期为广大的投资者、企业以及利益相关者的投资决策提供参考信息。     

半导体存储器及发展趋势

半导体存储器的容量和速度决策着计算机系统运行速度。目前CPU芯片18个月一更新，为了赶上这个速度，半导体存储器的发展也日新月异。     

城市最低生活保障兼有消费改善与劳动供给激励效应吗?

最低生活保障制度是我国社会保障体系中兜底性、基础性的制度安排,是保障民生、促进分配公平、维护经济安全和社会稳定的重要机制.本文通过对城市低保制度消费改善与劳动供给效应的综合评估发现,我国城市低保从整体上改善了受助家庭的消费状况,影响了受助家庭的消费结构,起到了提升经济福利的效果,但是对受助家庭的劳动供给激励效应还比较小...     

达、汉族高中生自我同一性与归因方式研究

以415名达斡尔族和汉族高中生为研究对象,对达斡尔族和汉族高中生自我同一性与归因方式的关系以及不同民族属性自我同一性的发展特点进行了考察比较。结果表明,两个民族学生皆表现出：成熟型同一性学生倾向内向归因;不成熟型同一性学生倾向外向归因;两个民族学生在自我同一性进程中具有不同的发展特点。     

风险投资在洛阳高新技术产业中的应用及问题分析

本文正是从洛阳高新技术产业和风险投资的发展现状入手,分析目前洛阳风险投资业在高新技术产业上的应用上所存在的问题,指出洛阳风险投资业发展的迫切性和重要性,并提出发展风险投资业的对策建议。     

浅谈中学开展健美操的重要性

随着当代中学生对美的追求的不断提升和素质教育的不断深入,健美操课越来越受到中学生的欢迎。本文主要阐述了中学开展健美操教学对学生的重要性并探讨了健美操教学和训练中应注重的几点问题。     

Design limits and dynamic policy analysis

This paper characterizes the frequency domain properties of feedback control rules in linear systems in order to better understand how different policies affect outcomes frequency by frequency. We are especially concerned in understanding how reductions of variance at some frequencies induce increases in variance at others. Tradeoffs of this type are known in the control literature as design limits. Design limits are important in understanding the full range of effects of macroeconomic stabilization policies. We extend existing results to account for discrete time bivariate systems with rational expectations. Application is made to the evaluation of monetary policy rules.     

The behaviour of producer prices: evidence from French PPI micro data

This paper provides some new empirical findings for how French producers set prices. We used the micro data that composes the producer and business-service price indices from 1994 to 2005. First we address how producer prices are collected. Then we present the main characteristics of how producers change their prices: they are modified infrequently and in small amounts. Also, a behavioural heterogeneity across sectors is observed. Business-service prices change less often than industrial producer prices. The data corroborates both time and state-dependent model predictions. Taylor contracts are not unusual, but a firm’s prices will also react to its economic situation. Nevertheless, the most relevant models, to explain producer price rigidity, are time-dependent.

“The fact that some prices are rigid or sticky, while others are variable, has attracted a good deal of comments from economists in recent years” Tucker (1938)

This study was conducted in the context of the Eurosystem Inflation Persistence Network. Data were processed under the responsibility of INSEE in the context of an agreement between INSEE and the Banque de France (20B-21B-E301/R05019/2005).