黑龙江省税收收入与GDP增长相关性的计量分析

近年来,关于税收收入与GDP的关系一直是税收学界和税务部门争论和研究的热点问题,与其他省份相比,由于黑龙江省的产业结构与资源结构不同,税收结构也不尽相同,税收与经济增长的关系有待进一步研究,因此以黑龙江省税收资料为例,运用常用的统计与计量技术,探讨税收收入与经济增长的相关性,为政府决策提供理论支持,更具有理论和现实意义.     

AMR语音编码算法研究及复杂度剖析

作为 3GPPWCDMA的语音编码 (SpeechCoding)候选方案 ,自适应多速率 (AMR)语音编码是一种多模式集成的ACELP类语音编码方案。本文根据该编码方案的标准 ,分析了其方案实现中的关键算法 :高性能码本设计、高效码本搜索算法、多级矢量量化技术、预处理算法的简化等。最后 ,设计了定点ANSI -C程序对AMR语音编码算法各部分的复杂度进行了测算     

The Three Basic Types of Residuals for a Linear Model

We consider residuals for the linear model with a general covariance structure. In contrast to the situation where observations are independent there are several alternative definitions. We draw attention to three quite distinct types of residuals: the marginal residuals, the model‐specified residuals and the full‐conditional residuals. We adopt a very broad perspective including linear mixed models, time series and smoothers as well as models for spatial and multivariate data. We concentrate on defining these different residual types and discussing their interrelationships. The full‐conditional residuals are seen to play several important roles.     

福建产业结构演变与经济增长的关系研究

本文对国内外产业结构与经济增长关系的文献进行了简要综述,阐明了产业结构与经济增长的关系,运用协整方法分析了1978—2004年福建产业结构演变与经济增长的关系,得出了若干具有理论和现实意义的结论。     

Stock prices in Japan rise at night

Examining daily data of the Nikkei Average from 23 October 1986 to 20 January 1998, I find that although the mean of the rate of change during the trading hours (RT) is negative, the mean during non-trading hours (RNT) is significantly positive. I also find that (1) RT has a stable relationship with Japanese economic fundamentals while RNT does not, (2) RNT reflects US economic fundamentals, though weakly, and (3) if the previous trading hours reflected bearish trading, then the bearish sentiment is not taken over to opening time, as opposed to when the previous trading hours reflect a more bullish attitude. A possible cause of the positive RNT is optimism of Japanese investors, especially that of securities companies.     

一种低速率语音编码技术在测量船语音通信中的应用

从分析测量船对语音通信的需求开始，主要探讨了测量船在执行载人航天任务时，如何在应急情况下做好航天员与指挥中心之间的话音通信的保障工作。为实现低速率语音通信，将混合激励线性预测(MELP)声码器这种全新的语音编解码器引入到测量船话音通信中，并为这一些新技术与原有系统的融合作了探讨。     

EXTERNAL PIVOTING IN THE SIMPLEX ALGORITHM*

In this paper we describe the principle of external pivoting, a variant of the primal simplex algorithm. Its validity is proved in general and various strategies are designed which are based on this principle. The average convergence behavior for these strategies is then tested in a series of randomly generated problems. It is found that at least one of the strategies compares favorably with the regular simplex method.     

货币政策是否影响股票市场:基于中国股市的实证分析

货币政策是否影响股票市场，对该问题的回答涉及到中央银行是否有能力以及如何干预股票市场。本文运用协整检验、Granger因果关系检验、向量自回归模型等计量方法分析得出如下结论：1．货币供应量M1、M2与股市流通市值存在双向因果关系，名义利率Nr、实际利率Rr是股市流通市值Nc的Granger原因；2．中央银行可以通过货币供应量和利率两种方式影响股票市场，其中利率更有效。这些结论对于货币当局调控股票市场具有重要的借鉴意义。     

国有商业银行企业贷款违约因果关系研究与分析

在进行国有商业银行企业贷款违约成因分析时,采用线性结构方程进行实证研究,扩展以往研究者对国有商业银行企业贷款违约成因的认识,使人们能够进一步明确地了解企业贷款违约成因层次与种类,以及如何进一步从企业因素、银行因素与环境因素等多种成因维度深入研究各类成因的关系与性质,从而有效地利用各类成因之间的关系找出防范企业贷款违约的有效方法。