货币供应量对股市影响的STR分析

使用1997—2012年的季度数据,建立了货币供应量M2与上证综合指数的平滑转换回归模型(STR),研究结果发现,货币供应量M2对上证综合指数的影响机制是非线性的,且是正向的影响.非线性关系的存在说明我国货币政策对股票市场的影响比较复杂,这也为我国货币政策的实施提出了挑战.     

UNIQUENESS AND VALUE DISTRIBUTION ON DIFFERENCE POLYNOMIALS OF MEROMORPHIC FUNCTIONS

In this paper, we study the value distribution question of certain difference polynomials of meromorphic functions, and investigate the uniqueness questions of meromorphic functions whose certain difference polynomials share a small functions. The results in this paper improve and extend the corresponding results in Zhang [16] and Chen [1].     

Market segmentation strategy in internet market

This paper presents a model to describe the competitive dynamics of web sites on the WWW market and analyze the stability of the model which is composed of one powerful site and two small sites. One of the most important results that emerge from this simple model is that strong competition among websites does not necessarily lead to the demise of the small website on the WWW market. From the stability analysis of the model, we obtain a series of conditions in which small sites can obtain competitive advantages by using the market segmentation strategy.