略论资产证券化与美国次级贷款危机

次贷危机的爆发与资产证券化市场的发展息息相关。一方面,资产证券化作为金融创新的重要方式,推动了美国经济的增长;但另一方面,资产证券化在开放的金融体系中会加速风险和危机的传播和扩散,加大系统性风险和金融危机的传染效应,使局部性金融危机或个案性金融危机演变成全球性金融危机。因此,加强金融创新中的风险控制是美国次贷危机给我们的重要启示。     

论资产证券化中风险隔离机制的构建

尽管资产证券化的发展对企业的融资带来了便利,丰富了金融市场可供选择的金融工具,但是资产证券化也加剧了金融市场的风险,美国次级债风波就是验证.本文从理论上分析了资产证券化的风险隔离机制的基础,认为资产合格、SPV合格、真实销售、重组增值、管理牵制和持续的信息披露等构成六道防线,这对当前我国防范资产证券化中的风险具有启发意义.     

Securitization,Social Distance,and Financial Crises

Because the process of securitizing home mortgages played a critical role in precipitating the recent financial crisis, it is widely agreed that this market must be reformed to prevent future collapses. Most proposals focus on improving the dissemination of information among securitization participants, and on strengthening incentives to discourage excessive risk-taking. This paper argues that because securitization involves the commodification of the lending relationship, it reinforces the type of self-interested behavior that often undermines regulatory efforts. What are needed are structural reforms that encourage moral behavior by narrowing the social distance between lenders and borrowers. This can be accomplished by a return to traditional banking lending, supplemented by the use of covered bonds to loosen credit constraints and to help financial intermediaries manage market risk.     

Securitization,Social Distance,and Financial Crises

Because the process of securitizing home mortgages played a critical role in precipitating the recent financial crisis, it is widely agreed that this market must be reformed to prevent future collapses. Most proposals focus on improving the dissemination of information among securitization participants, and on strengthening incentives to discourage excessive risk-taking. This paper argues that because securitization involves the commodification of the lending relationship, it reinforces the type of self-interested behavior that often undermines regulatory efforts. What are needed are structural reforms that encourage moral behavior by narrowing the social distance between lenders and borrowers. This can be accomplished by a return to traditional banking lending, supplemented by the use of covered bonds to loosen credit constraints and to help financial intermediaries manage market risk.     

金融投资中介化、噪声交易与金融危机模型的微观建构

随着金融市场的发展,投资者更多地通过金融中介间接参与金融市场投资。然而,金融中介的风险转移倾向容易导致风险资产的均衡价格偏离其基础价值,形成价格泡沫。长期存在的噪声交易者与金融投资中介化引发的资产泡沫相互推动,最终形成金融危机。即使在经济稳定的环境下,同样会由于金融市场本身发展的内在矛盾而导致危机的发生。     

BANK PERFORMANCE,FINANCIAL STABILITY AND MARKET CONCENTRATION: EVIDENCE FROM COOPERATIVE AND NON‐COOPERATIVE BANKS

Relying upon highly territorially disaggregated data taken at labour market areas, the paper explores the relationship between bank performances and financial stability of the banking system taking into account the role of market concentration. The z‐score is used as financial stability indicator, while the performance of financial intermediaries is measured using a parametric method recently developed (Kumbhakar et al. 2014). The empirical evidence shows a positive relationship between bank performance and financial stability and supports the ‘concentration–stability’ view for non‐cooperative banks only when concentration is measured on the whole sample of banks. Differences in the performance–stability nexus seem to depend more on the type of banks rather than different levels of market concentration. Higher market concentration of cooperative banks affects systemic stability by reducing the z‐scores of non‐cooperative banks, supporting the hypothesis that the presence of non‐profit‐maximizing entities can pull down stability of other financial institutions.     

我国推行知识产权证券化制度问题研究

知识产权证券化是以知识产权为基础资产发行证券进行融资的方式,是现代技术创新发展到技术金融一体化阶段的重要表现.这一融资形式在美、日、欧等西方国家已经实践中开始应用.目前,我国经济发展正在进入转型期,由过去的资源消耗型经济向可循环、可持续发展的知识经济道路转型.走新经济道路要求必需加强知识产权的创造与应用,引进知识产权证券化制度对于促进我国知识产权的产业化应用具有非常重要的作用.     

THE DISTRIBUTION OF BETAS IN PRESENCE OF NONTRADED ASSETS

This study considers a capital assets pricing model (CAPM) in an incomplete financial market wherein not all risky assets are traded and the risk from non‐traded assets is not orthogonal to that of the existing or traded assets. The model shows the extent of the divergence of the CAPM betas (true betas) from the traditional CAPM betas (perceived betas) in market equilibrium conditions in an incomplete market. Specifically, it implies that the more incomplete a financial market is, the wider is the discrepancy between the true and perceived betas, and the distribution of the perceived betas tends to centre more around 1 in an incomplete market than that of true betas. Empirical evidence in various settings support these results.     

市场竞争、银行市场势力与流动性创造效率—来自中国银行业的证据

商业银行是中国社会融资的主要渠道,银行向社会提供流动性的效率直接决定了社会融资的效率.为弥补流动性创造研究在效率和中观层面的不足,文章采用中国商业银行2000?2015年微观数据,探讨了市场竞争、银行市场势力与流动性创造效率之间的关系,得到以下结论:(1)市场竞争与流动性创造效率之间存在倒U形关系,中国银行业存在最优的市场结构;(2)银行市场势力过强是中国商业银行流动性创造效率较低的重要原因,银行市场势力越强,其流动性创造效率越低;(3)市场竞争程度与市场势力的流动性创造效率系数之间存在不显著的负相关关系,寄希望于通过增强中国银行业竞争程度来改善银行市场势力过强所导致的流动性创造效率过低,作用可能非常有限.中国应沿着"增强商业银行流动性创造能力,扩大直接融资规模"的改革方向继续前进.文章的研究丰富了已有文献,而且为中国银行体系改革的顶层设计提供了重要参考.     

金融市场系统风险与资产证券化的相关性

美国金融市场的资产证券化使金融市场的系统风险陡增,并引发了席卷全球的金融危机。资产证券化增加金融市场系统风险的主要原因在于倒买倒卖的市场运作模式、资产支持的证券流动性不足以及资产证券化交易的复杂性所产生的负面效应。金融危机后应加强我国资产证券化金融监管工作,坚持以有限管制和间接管制为原则,减少直接干预;坚持慎重选择资产证券化类型,逐步推进资产证券化原则;坚持以规范的信息披露为原则,防范系统风险。     

A Game‐Theoretic Foundation for Competitive Equilibria in the Stiglitz–Weiss Model

Financial intermediaries are, by definition, engaged in two‐sided competition. Despite the well‐known problems of achieving competitive solutions under two‐sided price competition, models of financial intermediation are commonly solved for competitive equilibria. This article provides a game‐theoretic foundation for competitive equilibria in one of the most important models of financial intermediation, the seminal Stiglitz–Weiss (1981) adverse selection model of the credit market with a continuum of borrower types.     

Sovereign Debt without Default Penalties

We develop a theory of sovereign borrowing where default penalties are not implementable. We show that when debt is held by both domestic and foreign agents, the median voter might have an interest in serving it. Our theory has important practical implications regarding (a) the role of financial intermediaries in sovereign lending, (b) the effect of capital flows on price volatility including the possible overvaluation of debt to the point that the median voter is priced out of the market, and (c) debt restructuring where creditors are highly dispersed.     

美国金融危机成因分析及对中国的警示

美国金融危机引发全球金融市场动荡。这场金融危机从美国的房地产市场开始，以惊人的速度蔓延，波及至信贷市场、资本市场，封全球尤其是西方金融机构和金融市场造成重大冲击，短期内升级为全球金融风暴。中国目前正处于资产价格上涨、信贷投放过度的经济环境之中，美国的金融危机给中国敲响了警钟。本文通过描述此次危机的发展脉络，在分析美国金融危机背景的基础上，从强化房地产按揭贷款业务风险管理，审慎推进资产证券化等六个方面得出了对中国的警示。     

Fancy Bitcoin and conventional financial assets: Measuring market integration based on connectedness networks

We investigate the relationship between Bitcoin and conventional financial assets from a perspective on the connectedness of asset networks. We adopt the method of measuring connectedness proposed by Diebold and Yilmaz (2009, 2012, and 2014) in a VAR system to study the dynamic interdependence between returns in Bitcoin, stocks, oil, and gold. We find that the connectedness between bitcoin and conventional assets is weak. The separation of positive and negative returns in the Bitcoin market shows the existence of an asymmetric pattern of the spillover effects between Bitcoin and conventional assets. A rolling window analysis finds that although Bitcoin prices experience a rising link to other financial assets, the magnitude is proven to be moderate. However, connectedness via negative returns is much stronger than via positive ones and exhibits a clearly increasing trend in recent periods. Our results in application are generally robust to other popular cryptocurrencies, such as ETH and Ripple. The findings presented in this paper have important implications for financial market participants, policymakers, and researchers in light of projected increases in the adoption of Bitcoin, as well as the rapid development of cryptocurrency.     

对金融衍生产品过度创新引致次贷危机的思考

次级抵押贷款是房地产抵押贷款市场的一种金融产品创新,为美国房地产的繁荣起到了巨大的推动作用。美国高风险次级抵押贷款的过度发放、以次级抵押贷款为基础资产的证券化产品和信用衍生品在全球金融市场泛滥,通过杠杆效应放大了实体经济中次级抵押贷款的风险,引致金融海啸。次级抵押贷款所带来的负面影响不容忽视,而金融产品创新要适度并要制定与完善监管体系。     

PRODUCE OR SPECULATE? ASSET BUBBLES,OCCUPATIONAL CHOICE,AND EFFICIENCY*

We study the effects of rational asset bubbles in an overlapping‐generations economy where asset trading requires specialized intermediaries and agents freely choose between working in the production or the financial sector. Frictions in the market for deposits create rents in the financial sector that affect agents’ occupational choices. When rents are large, the private gains associated with trading bubbles lead too many agents to become speculators, causing bubbles to lose their efficiency properties. Moreover, if speculation can be carried out by skilled labor only, then bubbles displace skilled workers away from the productive sector and raise income inequalities.     

论国有商业银行不良资产证券化技术的运用和推广

不良资产证券化是一种已经被国际经验证明的大规模处置不良资产的技术和手段。商业银行通过实施资产证券化能够将其不良资产以"真实出售"的方式转移到资产负债表外,使其风险加权资产减少,从而在不增加资本的情况下提高资本充足率。在中国,实施不良资产证券化还有助于国有商业银行提高自身的综合经营能力和积累市场化资本运作经验。本文正是从这一角度对不良资产证券化的技术要领进行了深入的探讨,力图从证券化产品的角度分析影响不良资产证券化的主要因素以及如何在不同市场条件下,运用和推广不良资产证券化的核心技术即不良资产证券化交易结构的选择和设计。     

Does religious faith affect household financial market participation? Evidence from China

Based on the 2013 China Household Finance Survey data, this paper investigates the impact of religious faith on household financial market participation and portfolio choice. The results show that religious faith can significantly promote household financial market participation. Besides, religious faith can increase the proportion of risky assets held by households, including equities. We also find that the need for social interaction and human capital accumulation can significantly induce religious residents to participate in financial markets and hold risky assets. Overall, our results reveal how faith affects household finance activities in China.     

Liquidity Creation through Banks and Markets: A Theoretical Perspective on Securitization

Securitization is a process that transforms some traditional non-traded banking assets into marketable securities. To evaluate this process, this paper surveys theories of the intertemporal allocation of funds through demand deposits and anonymous markets, first separately and then in an integrated model. It reviews some work on the role of market frictions and asset characteristics, and concludes that the interplay between these two is crucial in explaining the observed co-existence of demand deposits and anonymous markets. This suggests that securitization is an opportunity, rather than a threat, to banks.
(J.E.L.: D50, G21)