根据资本资产定价模型（CAPM），针对深圳B股市场2002年1月至2004年12月这一段时间的交易数据，利用横截面统计回归的方法对深圳B股的市场β值、流通市值、市盈率、账面/市场价值的比率四个因素与股票收益率之间的关系进行检验，结果是收益率与流通市值的对数、市场β值、市盈率、账面/市场价值比率的对数均呈负相关关系，这表明，深圳B股市场是非有效的。进而分析了深圳B股市场非有效的原因，并对强化深圳B股市场效率提出了一些建议。

对电信市场现状分析的基础上，应用经济学方法对寡头垄断市场的电信价格进行定性分析；然后以博弈论方法为基础，从技术创新的角度，对寡头垄断市场的电信价格进行深入分析；最后，就我国电信市场目前所遇到的问题提出自己的建议。

Following the increasing investment in basic research in China, the outputs of basic research have been greatly enhanced. In this paper, its relative efficiency of performance in basic research is analysed by adopting statistical regressions and Data Envelopment Analysis (DEA) method. Preliminary results show that injecting investments into basic research seems to be the main driving power for the increased research outputs in China. It is found that there were significant improvements on overall efficiency from 1991 to 1996, although this trend has noticeably slowed down since 1996. Possible causes of this slow-down are discussed.