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.     

社会互动与家庭金融资产配置

运用中国家庭金融调查(CHFS)数据,研究社会互动与家庭金融资产配置之间的关系。研究发现,适当增强社会互动会促进家庭更多地参与风险金融市场,增加投资风险资产的比例,提高金融资产的分散化程度,优化资产的配置效率。但当社会互动达到一定程度后,过度的社会互动则会抑制家庭参与风险市场,减少风险资产的投资比重,降低金融资产的分散化程度以及资产配置的有效性。因此,家庭需要建立适度而高质量的社会互动,这有助于家庭获得更多的外部资源,缓解信息不对称,降低交易成本,从而优化家庭金融资产配置。     

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。     

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.     

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。     

Welfare Cost of Fluctuations When Labor Market Search Interacts with Financial Frictions

We study the welfare costs of business cycles in a search and matching model with financial frictions. The model replicates the volatility on labor and financial markets. Business cycle costs are sizable. Indeed, the interactions between labor market and financial frictions magnify the impact of shocks via (i) a credit multiplier effect and (ii) an endogenous wage rigidity inherent to financial frictions. In addition, in a nonlinear framework, large welfare costs of fluctuations are explained by the high average unemployment and the low job finding rates with respect to their deterministic steady‐state values.     

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。     

Money,Asset Prices,and the Liquidity Premium

This paper examines the effect of monetary policy on the market value of the liquidity services that financial assets provide, known as the liquidity premium. The theory predicts that money supply and nominal interest rates have positive effects on the liquidity premium, but asset supply has a negative effect. The empirical analysis with U.S. data confirms the theoretical predictions. The theory also proposes that the liquidity properties of assets can cause negative nominal yields when the money holding cost is low and liquid assets are scarce. The suggestive empirical findings in Switzerland to support this theoretical result are presented.     

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.     

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.     

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.     

异质金融中介、资产价格与宏观经济波动

通过构建DSGE模型,探讨包含影子银行在内的金融中介机构、资产价格和宏观经济波动之间的内在联系,以及金融中介机构自身净值变化通过资产价格和杠杆率向实体经济传播的机制.结果表明:增加金融中介净值比直接放松信贷约束对宏观经济的冲击作用更大,引入影子银行后的双中介模型对金融部门和宏观经济变量形成放大效应,对影子银行监管的严格程度也会对金融经济变量产生不同影响.因此,决策者需在限制影子银行规模、维持金融稳定和放宽对影子银行监管、促进经济增长之间进行权衡.     

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。