The equity price channel in a New-Keynesian DSGE model with financial frictions and banking

This paper studies the role of the equity price channel in business cycle fluctuations, and highlights the equity price channel as a different aspect to general equilibrium models with financial frictions and, as a result, emphasizes the systemic influence of financial markets on the real economy. We develop a canonical dynamic general equilibrium model with a tractable role for the equity market in banking, entrepreneur and household economic activities. The model is estimated with Bayesian techniques using U.S. data over the sample period 1982Q01–2015Q01. We show that a dynamic general equilibrium model with an equity price channel well mimics the U.S. business cycle. The model reproduces the strong procyclicality of the equity price. The equity price channel significantly exacerbates business cycle fluctuations through both financial accelerator and bank capital channels. Our results support the increasing emphasis on common equity capital in Basel III regulations. This is beneficial in terms of financial stability, but amplifies and propagates shocks to the real economy.     

The role of financial frictions during the crisis: An estimated DSGE model

After the recent banking crisis in 2008, financial market conditions have turned out to be a relevant factor for economic fluctuations. This paper provides a quantitative assessment of the impact of financial frictions on the U.S. business cycle. The analysis compares the original Smets and Wouters model (2003, 2007) with an alternative version augmented with the financial accelerator mechanism á la Bernanke, Gertler and Gilchrist (1996, 1999). Both versions are estimated using Bayesian techniques over a sample extended to 2012. The analysis supports the role of financial channels, namely the financial accelerator mechanism, in transmitting dysfunctions from financial markets to the real economy.The Smets and Wouters model, augmented with the financial accelerator mechanism, is suitable to capture much of the historical developments in U.S. financial markets that led to the financial crisis. The model can account for the output contraction in 2008, as well as the widening in corporate spreads, and supports the argument that financial conditions have amplified the U.S. business cycle and the intensity of the recession.     

Portfolio allocation and international risk sharing

Abstract We show that recent explanations of the consumption‐real exchange rate anomaly that rely on goods and financial market frictions are not robust to introducing just one additional international asset. When portfolios are selected optimally, international trade in two nominal bonds implies a consumption‐real exchange rate correlation that is too high compared with the data even when there are many shocks. Monetary policy specification plays a potentially important role for the degree of risk sharing provided by nominal bonds, both in the benchmark model with only tradable and non‐tradable sector supply shocks and also in the model that allows for news.     

Financial amplification of foreign exchange risk premia

Theories of financial frictions in international capital markets suggest that financial intermediaries' balance sheet constraints amplify fundamental shocks. We present empirical evidence for such theories by decomposing the U.S. dollar risk premium into components associated with macroeconomic fundamentals, and a component associated with financial intermediary balance sheets. Relative to the benchmark model with only macroeconomic state variables, balance sheets amplify the U.S. dollar risk premium. We discuss applications to financial stability monitoring.     

The transmission of financial shocks in an estimated DSGE model with housing and banking

We develop a dynamic stochastic general equilibrium (DSGE) model with housing and banking to study the transmission of financial shocks between the financial and real sectors. A deterioration in the bank's balance sheet induced by financial shocks could have amplified and persistent impacts on real activities. The amplification of the shocks are originated from financial frictions tied to households and banks. We find that a disruption in bank net worth initiated by capital quality shocks generates a decline in household loans, house prices and output. Bank liquidity shocks also have negative effects on these variables. Housing preference shocks could generate a positive comovement between house prices and output. All these findings are qualitatively consistent with empirical evidence, suggesting that these financial shocks are critical to the dynamics of house prices and other macroeconomic variables.     

美国金融生态的恶化与量化宽松货币政策就业效应的失灵

在量化宽松货币政策下,美国的经济衰退得到了显著遏制,但失业率却持续在高水平运行,表明量化宽松货币政策对降低失业水平无效。研究显示,金融危机造成了美国金融生态的明显恶化,银行体系采取了紧缩信贷的应对措施,因此,美国政府通过量化宽松货币政策释放的流动性被截留在银行体系内部,不能形成满足市场投资需求的流动性供给,国内投资不能扩张,失业率就不可能下降,其结果必然导致量化宽松货币政策就业效应的失灵。     

Financialization and the macroeconomy. Theory and empirical evidence

This paper sheds light on the macroeconomic impact of financialization in the banking sector. We develop a new stock-flow consistent model, which reveals that excessive leverage increases financial fragility, lowers wages, and slows down real sector investment and GDP growth. Using a panel of 29 high income countries, we then construct indicators of banking financialization and investigate the impact of the latter on the wage share, gross capital formation and GDP growth, using a Bayesian structural VAR framework, as well as a set of fixed effect regressions. Our results highlight that financialization has had a detrimental impact on real sector growth. Finally, we discuss the implications of our results to propose reforms to the international financial system.     

Macroprudential policy with convertible debt

This paper studies the effectiveness of countercyclical capital requirements and contingent convertible capital (CoCos) in limiting financial instability, and its associated influence on the real economy. To do this, I augment both features into a standard business cycle framework with an equity market and a banking sector. The model is calibrated to real U.S. data and used for simulations. The findings suggest that a countercyclical capital adequacy rule and CoCos provide an effective dual approach to macroprudential policy. On the one hand, a capital adequacy rule mitigates the build-up of systemic risk through a capital buffer. On the other hand, CoCos are able to reduce the impact of a sudden decline in bank capital.     

Financial intermediation,consumption dynamics,and business cycles

The recent financial crisis highlighted the need to deepen our understanding of the impact of the financial intermediation sector on the real economy. We examine the quantitative implications of financial intermediation and firm's financing frictions in explaining the observed cyclical properties of both real and financial variables. We find that a modified version of the financial intermediation framework of Gertler and Karadi (2011) augmented with financing frictions in production does a good job in matching the unconditional moments of financial fluctuations without compromising key real co-movements. Our results are relevant for macro-prudential policy analysis as they underscore the importance of carefully identifying the sources of aggregate fluctuations in models in which financial intermediaries and financial frictions play a non-trivial role.     

1934-2010年美国银行业盈利模式变迁的价值链解析与启示

美国银行业盈利模式变迁集中反映在美国银行业收益结构的变化上,起因于金融价值链的裂解与聚合,并通过对银行价值链的重构实现向全能银行的成功转型。借鉴美国经验,我国商业银行应树立全功能银行的经营理念,根据风险绩效优化传统信贷业务,发展主动性风险业务,加强系统风险管理,降低费用和资本支出。     

Financial distress and fiscal inflation

Is inflation ‘always and everywhere a monetary phenomenon’ or is it fundamentally a fiscal phenomenon? The answer hinges crucially on the underlying monetary–fiscal policy regime. Scant attention has been directed to the role of credit market frictions in discerning the policy regime, despite its growing importance in empirical macroeconomics. We augment a standard monetary model to incorporate fiscal details and credit market imperfections. These ingredients allow for both interpretations of the inflation process in a financially constrained environment. We find that introducing financial frictions to the model and adding financial variables to the dataset generate important identifying restrictions on the observed pattern between inflation and measures of financial and fiscal stress, to the extent that it overturns existing findings about which monetary–fiscal policy regime produced the U.S. data. To confront policy regime uncertainty, we propose the use of dynamic prediction pools and find strong cyclical patterns in the estimated historical regime weights.     

Imperfect financial integration and asymmetric information: competing explanations of the home bias puzzle?

Abstract This paper shows that imperfect financial integration and informational asymmetries are not competing theories but rather complementary ideas to a single explanation of the home bias puzzle. We develop a rational expectations model of asset prices with investors that face informational constraints and find that informational advantages arise endogenously as a response to small financial frictions. We also present empirical evidence that (i) international financial frictions are correlated to observed patterns of US investors’ attention and that (ii) the attention US investors allocate to foreign stocks helps explain home bias towards those countries, even after controlling for financial integration levels.     

Assessing market power in the U.S. commercial banking industry under deregulation

This study attempts to investigate market power in the U.S. commercial banking industry since the U.S. government began to deregulate the banking sector in the early 1990s using the static Bresnahan–Lau model (SBLM) and dynamic Bresnahan–Lau model with error corrections (DBLEC). In particular, panel unit root and panel cointegration techniques are utilized to examine the dynamic model. The empirical results of the SBLM show that the banking industry is highly competitive. The empirical results of DBLEC also suggest that the commercial banking industry is close to being perfectly competitive in the short run. By contrast, the adjustment speeds of the supply and demand sides towards the long-run equilibrium are quite slow in that market, which implies that the U.S. commercial banks enjoy a certain degree of long-run market power.     

International policy coordination mechanism with respect to the moral hazards of financial intermediaries

This paper examines the impact of cross-border financial externalities on moral hazards of the banking sector, and an international policy coordination mechanism to reduce the moral hazards of the banking sector considering cross-border financial externalities. We demonstrate that the moral hazard of banking, such as reducing the monitoring efforts, is aggravated by cross-border financial externalities, while the introduction of an international policy coordination mechanism might reduce the moral hazard caused by these externalities. Moreover, international policy coordination is less likely to be sustained when the policy maker is short-sighted and the banking sector has greater political influence. However, when the distortionary cost of a liquidity aids policy is lower with high administrative transparency, and cross-border financial externality is greater, the coordination mechanism is more likely to be sustained. The results imply that efforts to launch an effective international financial coordination mechanism should start with countries with higher administrative transparency, more political stability, and enhanced financial integration.     

Staggered wages,financial frictions,and the international comovement problem

Standard international real business cycle models often generate negative cross-country correlations in labor and investment. The data, however, display positive correlations. This paper studies the effect of real wage rigidity and financial frictions on international comovement. We find that staggered wages mainly improve the cross-country correlation of labor, while financial frictions improve investment comovement. However, each friction alone cannot account for the magnitude of international correlations of either variable. When the two imperfections are introduced together, the effect of each friction endogenously reinforces the other and the model generates realistic correlations in both variables.     

How Important are Financial Frictions in the United States and the Euro Area?

This paper aims to evaluate whether frictions in credit markets are important for business cycles in the United States and the euro area. I modify the DSGE financial accelerator model developed by Bernanke, Gertler and Gilchrist (1999) by adding such frictions as price indexation to past inflation, sticky wages, consumption habits and variable capital utilization. When estimating the model using Bayesian methods, I find that financial frictions are relevant in both areas. According to the posterior odds ratio, the data clearly favor the model with financial frictions, both in the United States and the euro area. Moreover, financial frictions are larger in the euro area.     

SOME ESTIMATES OF TRADE FLOWS IN BANKING SERVICES

This paper presents some estimates of international trade in banking services. We use IMF data on assets and liabilities of both domestic banks and non-banks with foreign banks, and of foreigners with the domestic banking system to construct measures of the volume of transactions on which banking intermediation services are provided across national borders. We then use estimates of the spread between borrowing and lending rates for depositors and borrowers with the financial institutions involved to estimate the value of international flows of intermediation services. Estimates are presented for 1982–84 and 1991–93 for the U.S., the U.K., and Canada.     

HETEROGENEITY,FRICTIONAL ASSIGNMENT,AND HOME-OWNERSHIP

We study the composition of the housing stock across ownership and rental markets in a dynamic model of frictional assignment. Houses are rented or sold to heterogeneous households that sort over quality. Due to matching frictions and an increasing ownership surplus, wealthy households tend to own and lower value housing tends to be rented, even without financial frictions or rental supply constraints. When calibrated to match key housing market features of the average U.S. city, the model is consistent with observed empirical relationships across cities. We study the model's implications for affordability, ownership, and the impact of progressive property taxation.     

Delegation and the regulation of U.S. financial markets

We analyze the institutional determinants of U.S. financial market regulation with a general model of the policy-making process in which legislators delegate authority to regulate financial risk at both the firm and systemic levels. The model explains changes in U.S. financial regulation leading up to the financial crisis. We test the predictions of the general model with a novel, comprehensive data set of financial regulatory laws enacted specifically between 1950 and 2009. The theoretical and empirical analysis finds that economic and political factors impact Congress’ decision to delegate regulatory authority to executive agencies, which in turn impacts the stringency of financial market regulation, and our estimation results indicate that political factors may have been stronger and resulted in inefficiencies.