次贷危机中资产证券化对金融市场流动性的影响

次贷危机是一场金融市场流动性紧缩的危机.在流动性紧缩的过程中,连接多个利益主体的资产证券化负有很大责任.本文采用计量经济理论中的VAR模型对次贷危机中资产证券化对金融市场流动性的影响进行实证分析,发现在次贷危机的演进过程中,资产证券化确实对金融市场的流动性产生了持久的负面冲击效应,并导致了流动性紧缩的传导和扩散.因此,...     

Financial Frictions,Financial Shocks,and Aggregate Volatility

The Great Moderation was accompanied by an increase in financial volatility. We explore the sources of these divergent patterns in volatilities by estimating a model with time‐varying financial rigidities subject to structural breaks in the size of shocks, the monetary policy rule coefficients, and the average size of the financial rigidity. Institutional changes are key in accounting for the Great Moderation and in shaping the transmission mechanism of financial shocks. The increase in financial volatilities is accounted for by larger financial shocks, but the vulnerability of the economy to these shocks is significantly alleviated by the estimated changes in institutions.     

Financial Shocks and Corporate Investment in Emerging Markets

We examine how cross-firm and cross-country heterogeneity shapes the responses of corporate investment in emerging markets to changes in U.S. monetary policy and financial-market volatility, the latter proxying for uncertainty. We find that in response to increases in U.S monetary policy rates or financial-market volatility, financially weaker firms reduce investment by more than financially strong firms. We also show that firms with stronger balance sheets delay investment voluntarily when faced with higher uncertainty. Finally, we find that stronger macroeconomic fundamentals (lower public debt or higher international reserves) help to buffer corporate investment from increases in U.S. monetary policy rates.     

Bayesian Evaluation of DSGE Models with Financial Frictions

We evaluate two most popular approaches to implementing financial frictions into DSGE models: the Bernanke, Gertler, and Gilchrist ( 1999 ) setup, where frictions affect the price of loans, and the Kiyotaki and Moore ( 1997 ) model, where they concern the quantity of loans. We take both models to the data and check how well they fit it on several margins. Overall, comparing the models favors the Bernanke, Gertler, and Gilchrist framework. However, even this model does not make a clear improvement over the New Keynesian benchmark in terms of marginal likelihood and similarity of impulse responses to those obtained from a VAR.     

Search Frictions,Financial Frictions,and Labor Market Fluctuations in Emerging Markets

This article examines the role of the extensive and intensive margins of labor input in the context of a business cycle model with a financial friction. We document significant variation in the hours worked per worker for many emerging-market economies using manufacturing data. Both employment and hours worked per worker are positively correlated with each other and with output. We show that a search-theoretic context in a small open-economy model requires a small wealth effect to explain these regularities at the expense of a smaller wage response. On the other hand, introducing a financial friction in the form of a working capital requirement can explain the observed movements of labor market variables such as employment and hours worked per worker, as well as other distinguishable business cycle characteristics of emerging economies. These include highly volatile and cyclical real wages, labor share, and consumption.     

Tax Evasion,Investment Shocks,and the Consumption Puzzle: A DSGE Analysis with Financial Frictions

Recent studies identify Marginal Efficiency of Investment (MEI) shocks as important drivers of the business cycle. However, Dynamic Stochastic General Equilibrium (DSGE) models struggle to explain macroeconomic comovements between consumption and the key real variables after a MEI shock. Moreover, engaging in tax evasion practices is often an answer to financial constraints, which have been recognized as important determinants of cyclical fluctuations as well. We use a medium-scale New Keynesian DSGE model, that combines tax evasion with financial frictions, to simulate a MEI shock. We show that entrepreneurial tax evasion can solve the comovement problem to a fair extent.     

Uncertainty,Financial Frictions,and Nominal Rigidities: A Quantitative Investigation

Are uncertainty shocks a major source of business cycle fluctuations? This paper studies the effect of a mean preserving shock to the variance of aggregate total factor productivity (macro‐uncertainty) and to the dispersion of entrepreneurs' idiosyncratic productivity (micro‐uncertainty) in a financial accelerator dynamic stochastic general equilibrium model with sticky prices. It explores the different mechanisms through which uncertainty shocks are propagated and amplified. The time‐series properties of macro‐ and micro‐uncertainty are estimated using U.S. aggregate and firm‐level data, respectively. While surprise increases in micro‐uncertainty have a larger impact on total output than macro‐uncertainty, these can only account for a small (but nontrivial) share of output volatility.     

企业金融资产配置与融资约束的缓解机制:基于流动性管理的分析

企业进行金融资产配置,一方面能够为企业提供流动性,缓解融资约束;另一方面也因投机动机而占用企业流动性资源,加剧融资约束,对实体投资造成挤压。这是形成企业金融化的"投资挤出效应"和"蓄水池效应"两种现象并存的内在机制。为衡量这种内在机制,本文使用2007—2018年我国上市公司样本,对金融资产配置的流动性管理效应展开分析。结果显示:非金融企业的金融收益会推动超额现金的持有,通过超额现金的中介效应引致了融资约束程度的缓解;而企业持有金融资产行为则产生相反的效应。进一步研究发现,在典型的公司治理机制中,无论是外部股东的投票机制,还是来自内部的代理成本与高管持股机制,都在一定程度上推动了金融资产配置产生的流动性效应。     

我国金融资产管理公司商业化转型研究

金融资产管理公司既是我国经济金融体制改革的产物,也是我国金融体系不断自我发展、自我完善的需要。目前金融资产管理公司政策性资产处置工作基本完成,商业化转型将成为未来的趋势。本文基于金融战略视角,借鉴国外的转型经验,从探讨资产管理公司继续存在的必要性入手,结合我国实际情况分析资产管理公司转型的现实条件和转型目标,提出我国资产管理公司商业化转型应该分步实施:第一步,使资产管理公司成功向商业化的综合性资产管理公司转型;第二步,逐渐向现代投资银行过渡;第三步,在现代投资银行基础上向大型金融控股集团公司发展。     

金融资产投资、杠杆率与企业风险承担——基于非金融企业的视角

本文以2007~2018年我国A股非金融上市公司为研究样本,运用动态面板系统广义矩估计法,研究杠杆率在金融资产投资与企业风险承担之间的中介效应影响,分析金融资产投资、杠杆率、企业风险承担三者之间的传导链条。研究发现:杠杆率在金融资产投资与企业风险承担水平之间发挥了部分中介效应;金融资产投资增加会直接导致企业风险承担水平上升,同时也会通过提高杠杆率间接地提升企业风险承担水平。本研究丰富了实体企业金融投资后果的相关文献,为实体企业的投资决策以及风险管理提供了参考,也为监管部门去杠杆防风险提供了经验证据。     

金融市场价格机制、失衡风险与流动性调控

本文对金融市场价格机制的有效性、合理性进行探讨,对法马的有效市场理论、希勒的行为金融理论进行介绍和述评。在此基础上对金融市场价格波动是否需要调节、如何调节、中央银行角色变迁方面提出相关建议。     

Fundamentals,Misvaluation, and Business Investment

Does stock market misvaluation affect business fixed investment? To answer this question, we provide evidence based on U.S. firm‐level panel data. We examine the orthogonality conditions for the investment Q and Euler equations, and our qualitative tests reject the null hypothesis that investment is unaffected by misvaluation (this result is not driven exclusively by the late 1990s). To measure the quantitative effects on investment, we introduce a measure of misvaluation into standard investment equations. Our estimates imply that a one‐standard‐deviation increase in misvaluation increases investment between 20% and 60% relative to the mean level of investment in the sample.     

Asset Prices,Liquidity, and Monetary Policy in an Exchange Economy

I formulate a model in which money coexists with equity shares on a risky aggregate endowment. Agents can use equity as a means of payment, so shocks to equity prices translate into aggregate liquidity shocks that disrupt the mechanism of exchange. I characterize a family of optimal monetary policies and find that the resulting equity prices are independent of monetary considerations. I also study a perturbation of the family of optimal policies that targets a positive constant nominal interest rate and find that in this case the real equity return includes a liquidity return that depends on monetary considerations.     

Optimal Monetary Policy Rules and House Prices: The Role of Financial Frictions

We probe the scope for reacting to house prices in simple and implementable monetary policy rules, using a New Keynesian model with a housing sector and financial frictions on the household side. We show that the social‐welfare‐maximizing monetary policy rule features a reaction to house price variations, when the latter are generated by housing demand or financial shocks. The sign and size of the reaction crucially depend on the degree of financial frictions in the economy. When the share of constrained agents is relatively small, the optimal reaction is negative, implying that the central bank must move the policy rate in the opposite direction with respect to house prices. However, when the economy is characterized by a sufficiently high average loan‐to‐value ratio, then it becomes optimal to counter house price increases by raising the policy rate.     

资产注入：支付手段与市场反应

本文以股改后我国上市公司控股股东对上市公司资产注入事件为样本，运用市场模型检验不同支付手段资产注入的市场反应。研究发现，在控制注入资产的规模、注入前上市公司流通市值的大小、注入前机构投资者持有公司股票的比例等因素影响的情况下，市场对采用股权作为支付手段的资产注入反应强烈；投资者对资产注入方案已经具备较强的辨别能力。本文据此提出了有关政策建议。     

Book‐to‐Market Equity,Asset Correlations and the Basel Capital Requirement

This paper examines the effect of book‐to‐market equity (BE/ME) on asset correlations under the Basel capital requirement. We find that BE/ME captures variations in asset correlations after controlling for firm size, default probability and industry effects from 1987 to 2011. Obligors with higher BE/ME exhibit lower asset correlations compared to those with lower BE/ME. Decomposing BE/ME into assets‐in‐place and growth options based on the asset pricing literature shows that obligors with more assets‐in‐place or more fixed assets have higher BE/ME and lower asset correlations than those with more growth options. Overall, our findings suggest that BE/ME is an additional important factor that may improve the estimates of asset correlations and thereby banks’ capital adequacy.     

中国信贷资产证券化市场发展现状及展望

中国信贷资产证券化仍处于以零星个案、小规模试点为主的初级阶段。审慎和重在规范的发展路径既推动了信贷资产证券化实践,又尚存诸如与上位法不统一、规则制定权限错配、发行难度和成本增大、一级市场销售不畅、二级市场流动性严重不足等负面效应,制约着信贷资产证券化深入发展。2008年以来,受美国金融危机以及国内宏观调控变化的影响,资产证券化发行环境不利,亟待获得政策层面的持续鼓励和支持。国内商业银行应找准切入点,积极探索业务品种,更好地做好证券化产品的资产储备和发行准备工作。     

股票的权益比、账面市值比及其公司规模与股票投资风险——以上海证券市场的10只上市公司股票投资风险为例

最近20年来一些学者对CAPM理论模型检验的结果大都表明,股票的投资风险(或其收益)并非像该模型描述的那样由β系数唯一决定,还存在其他因素在股票投资风险中起影响作用。国内学者借助于横截面法的回归模型研究指出,股票的权益比率(D/E)、账面/市值价值比(BV/MV)与公司规模是决定股票投资风险除β系数外的三个主要经济变量。为了验证他们理论的正确性与精确性,该文率先运用模糊数学的聚类分析法,对上证市场随机选取10只样本股票的D/E、BV/MV、公司规模与股票投资风险相关性进行实证分析,并与用回归分析方法得到的β指数与风险关系进行比较研究。经研究进一步证实,股票投资风险并非唯一由β系数决定,股票的D/E、BV/MV及其公司规模应当成为β系数以外影响股票投资风险不可忽视的重要因素。本文研究的意义在于建议股票投资者,衡量股票投资风险不仅要考察股票的β系数,还应进一步考察股票的D/E、BV/MV和公司规模等。     

资产替代、金融市场交易和货币流通速度的稳定性

文章以2001至2005年为样本区间，考察了我国公众的资产替代行为是否构成了股票市场交易影响货币流通速度稳定性的内在机制。研究表明，当股票市场交易规模扩大时。公众出于交易的需要，会将企业存款、储蓄存款和现金替代为股票交易客户保证金，并导致M1流通速度增加，这就说明公众的资产替代行为确实影响到货币流通速度的稳定性。这就意味着，人民银行在考察股票市场交易对货币流通速度稳定性的影响效应时，其切入点应集中于对资产替代行为的分析。     

管理者团队特征、金融资产配置与实体企业信用风险

基于实体企业信用风险视角,本文探讨金融资产配置效果,并考察管理者团队特征对金融资产配置效果的调节作用。研究发现,增加金融资产配置可减少实体企业信用风险,但长期看,金融资产的风险缓冲作用在逐渐减弱;管理者团队年龄越大、任期越长的企业,越倾向于增加金融资产配置,这有助于减少实体企业信用风险,而管理者团队学历对金融资产配置与信用风险之间的调节作用不明显。进一步研究发现董事长年龄越大、任期越长,管理者团队的年龄及任期对金融资产配置效果的影响越弱。本文研究拓展了实体企业配置金融资产的经济后果分析,对优化管理者团队结构、降低企业信用风险具有启示意义。