世界各国政府积极推行通货膨胀目标政策，导致了今天的资产泡沫，价格的发散以及全球性通胀，而利率的长期偏离又可能再一次将世界经济拖入泥潭。本文建立了具有工资和价格粘性的新凯恩斯小型开放经济模型，分析了Ramsey均衡下的最优通货膨胀以及与之对应的最优利率。分析表明：开放经济中最优的通货膨胀率为负的零边界，与之对应的最优名义利率为通胀与资本的实际回报比例之和，通胀和利率成配对最优关系，即通胀政策要求与之匹配的利率政策；同时，在开放经济中，Ramsey均衡的通胀和利率政策对本国的一价定律缺口及本国的贸易条件具有改善趋势，这并不意味着，紧缩型的最优通胀和大于零的最优实际利率会引致开放经济中本国处于不利的外部均衡位置，而是具有更多的贸易条件优势，更重要的是在有管理的浮动汇率机制下，Ramsey均衡的通胀和利率政策将会使本国汇率具有贬值趋势，能够确保本国在国际贸易和国际金融市场中具有稳定的优势。

本文基于银行与小企业有限理性的假设，运用演化经济学的非对称进化博弈方法分析了小企业融资问题，认为企业能否得到贷款与银行等金融机构的规模无关，而与企业项目的成功概率、抵押物的变现净额、企业贷款申请成本等高度相关，在此基础上提出了解决小企业融资问题重点应放在建立利于小企业股权融资的金融体系与制度环境、大力发展小企业融资担保体系、降低小企业融资成本等政策建议。

This paper consists of two parts. In the first part, through the calculation of “binomial correlation measure”, we suggest that from the perspective of default correlation it would be better to use structural approach rather than reduced form approach for pricing derivatives with two counterparties and its CVA calculation unless default intensities follow jump-diffusion process in latter one. In the second part, we derive the pricing model for CDS with counterparty risk and its CVA calculation by Black-Cox first passage time model in structural approach. Different from most of the previous paper our recovery is based on the CDS with counterparty risk, so the pricing model is a boundary-value problem of fully-nonlinear PDE. To solve it, we introduce an approximation problem by penalty model in reduced form approach by assuming an incentive function. Also finite element method and iteration approach are used. The numerical results show the convergence of approximation problem, iteration problem and finite element method, a comparison between CVA with different recovery rules and also the impact of wrong-way risk and right-way risk on CVA.

本文修改自某保险集团的客户数据挖掘报告，作者使用SPSS MODELER数据挖掘软件，遵从CRISP-DM数据挖掘方法论，对寿险个人客户的现金流价值及业务价值按商业理解、数据理解、数据准备、建立模型、模型评估和模型发布六步骤进行了数据挖掘，得到了数据模型和数据挖掘结论，并相应提出了寿险个人客户分类分级方案的建议和其它支持寿险业务发展的具体建议。本数据挖掘形成的政策建议包括：寿险个人客户可以按现金流价值和业务价值结合的方法进行客户的分类分级，客户分级用于对外宣传，客户分类用于内部管理，客户分级应比客户分类简单；此外，建议寿险公司重点开发适销高年龄段的高价值保险产品，建议加强对已婚客户的拓展力度，建议深入研究女性客户的保险购买行为心理等，以有效提高保险公司客户的现金流价值和业务价值。

Insurance was one of industries that were opened very first after China’s accession to the WTO in 2001. During 2002 to 2005, there was a peak of the foreign insurers’ entry, with the rapid growth of their market share. However, in recent years, the foreign insurers found themselves not able to grow as fast as they have expected, which was described as their “Seven Year Itch” in China. Several cases of equity transactions have taken place in 2009-2010, mainly involved with the foreign insurers reducing their shareholdings. This was regarded as the sign of foreign insurers changing their strategies in Chinese market. In this paper we found strong evidence to show that the current performance of foreign insurers in China was relatively worse than that in the other major insurance markets. From the comparison of the regulatory environment and market performance, we can say for sure that regulation restrictions should be at least one of the major reasons for the current situation. Also we found that the “50-50” shareholding structure which was adopted initially by many life foreign insurers could be blamed for the slow growth recently. And poor bancassurance business performance could explain the shareholding reductions recently for some of the foreign life insurers.

基于保险监管视角，借鉴欧盟“偿付能力II”相关理论，对市场风险运用幂阶转换在险价值（Normal Power Approximation Value-at-Risk），并进行波动率时间序列建模；对保险风险运用精算模型；对信用风险和操作风险则借用巴塞尔新资本协议的相关标准模型，实证分析了我国财险公司的偿付能力资本需求。结果显示：偿付能力资本需求（Solvency capital requirement, SCR）是最低资本需求（Minimal capital requirement, MCR）的1.928倍，表明以风险为基础计算的资本需求远大于基于业务量大小的资本需求。

诉讼是一种高成本解决利益冲突的方式，一般是在双方关系僵持到破裂甚至公开对立时才使用。当银行对不能及时归还借款本息的企业提起诉讼时，一方面破坏了银企关系，作为一种惩罚也破坏了声誉的隐性契约作用，其“社会实施”机制导致企业原有的声誉资产丧失，造成了企业信贷融资规模的大幅下降，与同行业的其他企业相比也有显著差异。对不同所有权性质企业的检验结果表明，国有企业借款可得性受到的影响要比非国有企业小，政府的“援助之手”为国有企业提供隐形担保，信贷歧视现象依然存在。而与政府结交、建立政治关联，可以有效缓解非国有企业的信贷困难。

This paper investigates the dynamic and long-run relationships between monetary policy and asset prices in China using monthly data from June 2005 to September 2010. Johansen’s cointegration approach based on vector autoregression (VAR) and Granger causality test are used to identify the long-run relationships and directions of causality between asset prices and monetary variables. Empirical results show that monetary policies have little immediate effect on asset prices, suggesting that Chinese investors may be ‘irrational’ and ‘speculative’. Instead of running away from the market, investors rush to buy houses or shares whenever tightening monetary actions are taken. Such seemingly irrational and speculative behavior can be explained by various social and economic factors, including lack of investment channels, market imperfections, cultural traditions, urbanization and demographic changes. The results have two important policy implications. First, China’s central bank has not used and should not use interest rate alone to maintain macro-economic stability. Second, both monetary and non-monetary policies should be deployed when asset bubbles loom large to avoid devastating consequences when they burst.

针对实证研究揭示的并购中主并公司没有显著收益，甚至在连续并购中，主并公司绩效会越来越差的情况，本文提出了“主并公司为了避免可能存在的更大的损失而被迫进行无法获得显著收益的预防型并购”的动因。本文通过构建模型，从理论上说明，即使主并公司的股东和管理层之间不存在代理冲突，并且公司的决策理性时，主并公司依然可能进行无显著收益的并购。

Building on the important study by Allen, Qian and Qian (2005) and Ayyagari, Demirgüc-Kunt and Maksimovic (2010), I examine whether third party guarantors play an effective role in assessing loan risk. Using a proprietary database of third party loan guarantees in China, I find strong evidence that guarantors and banks disagree on pricing loan risk, and that banks can better predict loan defaults than guarantors. I also find that the probability of loan default is affected by the capability of guarantor officers. My findings question the contribution of soft information in the improvement of credit scoring and support the view that informal finance should be limited. This paper also supports the implications of studies on human capital in financial intermediation.