Bidding between incumbent and entrant

Facing an informed incumbent who has cost advantages in two different states, the uninformed entrant bids cautiously due to the incumbent’s cost advantage in the low cost state. The incumbent bids aggressively, earning additional profits because of his cost advantages.     

高新技术产品出口对中国经济增长的拉动效应及外溢分析

本文从在当今世界贸易中占有重要地位的高新技术产品出口的角度出发,以中国各省市的数据为基础。将Feder模型拓展为四部门,即非出口部门、初级产品出口部门、工业制成品中非高新技术产品出口部门扣高新技术产品出口部门,并且通过东部与中西部比较来考察高新技术产品出口对中国经济的拉动效应和技术外溢作用。实证结果表明,高新技术产品出口对东部经济拉动效应已经很显著而对中西部则不明显,从外溢角度来看,其对东部非出口部门外溢效应很微弱,仅仅为0.07。而对中西部则基本上还没有外溢效应。     

锚杆静压桩在既有建筑物地基加固中的应用

锚杆静压桩技术是锚杆和静力压桩二项技术巧妙结合而成的一种桩基施工新工艺，是一项地基加固处理新技术。通过回顾锚杆静压桩二十多年的发展应用，说明该技术具有广阔的发展前景。     

写日记与巩固和扩大词汇量

写日记对巩固和扩大学生的词汇量 ,从而对提高他们的写作能力有显著的帮助。对学生进行的三个阶段的词汇调查表明 ,大多数学生在写日记这一过程中 ,能寓兴趣于单词学习 ,通过将学到的知识用于实践 ,使他们大大丰富了词汇量 ,找到了一个学习词汇的有效方法。     

浅谈“无为而治”在班级管理中的运用

着力探索了用老子的一句名言“无为而治”来进行班级管理。要达到这种有效的管理必须具备的一定的内在要求、前提、基本保证及有效的形式。     

The Choice of Commercial Breaks in Television Programs: The Number, Length and Timing

This paper examines the choice of commercial breaks by a television network in a monopoly setup. It is assumed that viewers dislike commercials, while the network seeks to maximize the total audience for these commercials through its choice of the number, length, and timing of commercial breaks. The model predicts that commercial breaks become more frequent toward the end of the program, and that the length of breaks is single-peaked. When the television program becomes more popular, the network runs commercials more frequently, and redistributes commercials so that late breaks become longer while early breaks become shorter.     

论城市垃圾循环利用的法律结构

通过比较国外立法经验与树立新的法律结构理念,阐述了进行城市垃圾循环利用的法律结构的必要性,并设计了初步的制度结构模式.     

电子废弃物的污染与处理技术

介绍了一些国家和地区电子废弃物污染的现状，阐述了当前电子废弃物的资源化处理处置的一些主要工艺，并对我国电子废弃物的管理提出了一些建议。     

聚合磷硫酸铁的中试

通过研究聚合磷硫酸铁的合成过程及其性能特征，找出理想的合成路线，并探索其实现工业化的可能性。     

Analysis on structural changes in the macroeconomic data series with the empirical evidence from China

Analysis on structural changes in macroeconomic data series has been the key issue for studying data quality. This paper studies the structural changes in China’s 36 macroeconomic time series using joint estimation model, and we find out the characteristics and movement pattern for the outliers. Our results show that most outliers show up more or less in groups, indicating that there is a significant correlation between them. The isolated outliers are not the main characteristic of China’s macroeconomic time series. Nearly all the original series contain the obvious skewness and kurtosis; hence, the hypothesis of normality is significantly rejected. Most original and outlier correction series show the non-autoregressive conditional heteroskedasticity (ARCH) characteristic, but the p value for ARCH2, ARCH4, and ARCH8 is very different. __________ Translated from Economic Research Journal (经济研究), 2005, (1) (in Chinese)