封闭式基金长期存在的高折价严重影响了封闭式基金在我国的发展。为了解决这个问题，大成基金管理公司发行的大成优选创新型封闭式基金，通过引入救生艇条款以降低基金折价率。该条款相当于为基金持有人提供了一份巴黎期权，本文采用三叉树方法对该救生艇条款的价值进行了评估，并以大成基金管理公司发行的另外两只封闭式基金作为基准，考察了救生艇条款对封闭式基金折价的影响。

本文是对中国股票市场过度自信问题所作的实证研究。本文在投资者对公开信息和私人信息有不同反应的假设基础上，建立一个两变量向量自回归模型，着重考察了A股市场价值加权和平均加权的股票收益率和交易量对私人信息和公开信息冲击的不同反应。实证结果表明：与美国股市的情况类似，中国A股市场上投资者对公开信息反应不足，而对私人信息反应过度，并且私人信息短期内可以造成剧烈冲击，而公开信息冲击较小且不持久，投资者确实存在过度自信现象。最后，本文根据A股市场投资者过度自信的特征给出了相关政策建议。

本文在分析和比较常用的几种股指期货最优套期保值比率确定模型的基础上，基于风险最小化模型框架，利用沪深300指数期货合约模拟运行以来的样本数据，通过最小二乘回归模型、向量自回归模型、误差修正模型以及广义自回归条件异方差模型四种估计方法，对其最优套期保值比率进行了实证测算和绩效比较，并提出了相应的政策建议和投资策略。

可转债的定价问题是学术界和实务界都关心的问题。本文在考虑行权策略的基础上，采用最小二乘蒙特卡罗模拟（LSMC）对沪深证券市场中交易的可转债进行定价分析。结果表明， 该方法确定的价格略低于市场价格， 模型价格与市场价格误差较小， 且不具有系统性。这与 Black-Scholes 等传统模型系统性高估可转债的价格形成了鲜明对比。另外，最小二乘蒙特卡罗模拟的稳定性要优于 Black-Scholes 模型，尤其是在转股价格调整的时候更是如此。可转债是否处于转股期对于可转债价格的敏感性以及定价误差有一定影响。我们认为，可转债市场价格偏高既与投资者的预期有关，也与市场缺乏套利机制有关。

We use an implicit alternating direction (IAD) numerical procedure to estimate the value of a fixed-rate mortgage (FRM) with embedded default and prepayment options. The value of FRMs depends on interest rates, the house value, and mortgage maturity. Our numerical results suggest that the joint option value of prepayment and default is considerably high, even at loan origination. We extend the model to include prepayment penalties in FRM valuation.

从股市的两次周期性调整入手，基于对传统物理理论和绝对定价理论在证券市场应用局限的分析，阐述了超涨超跌格局背后的理论根源，进而以中国宏观经济和中国股市的本土化特征为假设前提，构建了超涨-超跌模型。将股市的运行分为朦胧期、理性期、超涨期、回归期和超跌期等五个循环时期，对前提假设条件和各时期特征进行了拟合检验分析，并从估值体系的建议、参与者教育和政府引导等三个方面，对如何走出超涨-超跌模型进行了策略研究。

在现代资产定价理论中，一个基本的假定是证券资产风险溢价满足方差齐性，然而，这样的假设未必是正确的，因此，需要对资产定价模型进行异方差的检验。本文在贝叶斯框架下考察了具有结构变化的资产定价模型，提出了检验该模型的自回归条件异方差的贝叶斯检验方法。最后利用一个具体实例论证了所提方法的有效性。

本文应用结构化模型对有信用风险的沪深债券进行了详细的实证定价分析，发现结构化模型高估了大部分债券的价格，这可能与样本债券全部为高信用等级债券有关，同时也在一定程度上反映了国内公司债券市场存在较大的流动性风险。最后，本文还运用线性回归模型进行回归分析发现息票率和剩余期限与结构化模型误差系统相关。

A model of the domestic financial intermediation of foreign capital inflows based on agency costs is developed for studying financial crises in emerging markets. In equilibrium, the banking system becomes progressively more fragile under imperfect prudential regulation and public sector loan guarantees until a crisis occurs with a sudden reversal of capital flows. The crisis evolves endogenously as the banking system becomes increasingly vulnerable through the renegotiation of loans after idiosyncratic firm-specific revenue shocks. The model generates dynamic relationships between foreign capital inflows, domestic investment, corporate debt and equity values in an endogenous growth model The model's assumptions and implications for the behavior of the economy before and after crisis are compared to the experience of five East Asian economies. The case studies compare three that suffered a crisis or near-crisis, Thailand and Malaysia, to two that did not, Taiwan Province of China and Singapore, and lend support to the model.

Great credit risk is a big headache which blocks the development of the banking sector of China. Based on the panel data of the Chinese banking sector from 2002 to 2006, this paper empirically examines the effects of foreign strategic investors’ participation on the risk behavior of Chinese banks. The results show that foreign strategic investors (FSI) had a positive, but limited impact on the credit risk of Chinese banks. Further analysis reveals that the risk management abilities of Chinese banks have improved apparently when the proportion of shareholding of the leading foreign strategic investors exceeds 15 percent, which results in a significant drop of the credit risk. However, due to the ‘minority ownership’ restriction on foreign investors' stock shares, the positive effect of the participation of foreign strategic investors is limited. The visible decline in both non-performing loans (NPLs) and the NPL ratio of Chinese banks mainly reflects the rapid growth of China's economy and benefits a lot from the massive financial restructuring of state-owned banks.