Equilibrium Indeterminacy and Asset Price Fluctuation in Japan: A Bayesian Investigation

This paper investigates sources of asset price fluctuation in Japan using an estimated financial accelerator model. For explicit treatment of expectational beliefs characterized by sunspots, the model is analyzed over the parameter space where the equilibrium can be indeterminate. We show that indeterminacy arises if the financial accelerator effect is sufficiently large. According to our Bayesian estimation results, Japan's economy was affected by sunspot shocks; however, the contribution of the sunspots to asset price volatility was low. Rather, net worth and cost shocks drove the asset price fluctuation. We find, however, that the sunspots substantially affected capital investment.     

货币政策、消费品和投资品通货膨胀——基于金融加速器视角

本文建立一个包含消费品和投资品生产的两部门新凯恩斯DSGE模型,并且引入金融加速器以分析货币政策对消费品和投资品通货膨胀的影响机制,同时使用1999Q1至2015Q4的中国宏观经济数据对模型进行贝叶斯估计。估计结果表明,两个部门的菲利普斯曲线都具有较高的价格粘性。外部融资溢价对两个部门企业投资的影响存在异质性,投资品部门的金融加速器效应更加明显。脉冲响应分析表明货币政策扩张时,投资品部门的产出和通胀膨胀上升幅度比消费品部门更大。理论模型的脉冲响应与VAR实证分析得到的经验事实相一致。金融摩擦导致的消费品和投资品部门需求结构的异质性是解释货币政策对两个部门影响差异的关键。数值模拟分析发现金融加速器机制主要改变货币政策对投资品产出和通货膨胀的影响,对消费品部门影响改变较小。方差分解结果表明加总技术冲击、投资边际效率冲击和货币政策冲击是经济波动的主要来源。     

FX Intervention in the New Keynesian Model

We develop an open-economy New Keynesian Model with foreign exchange (FX) intervention in the presence of a financial accelerator and shocks to risk appetite in international capital markets. We obtain closed-form solutions for optimal monetary and FX intervention policies assuming the central bank cannot commit to future policies, and we compare the solution to that under policy commitment. We show how FX intervention can help reduce the volatility of the exchange rate, of inflation, and of the output gap, thus mitigating welfare losses associated with shocks in the international capital markets. We also show that, when the financial accelerator is strong, there is a risk of indeterminacy (self-fulfilling currency and inflation movements) although FX intervention can reduce this risk and thus reinforce the credibility of the inflation targeting regime. Model simulations match well the impact of a VIX shock obtained by local projections on a panel of inflation targeting emerging markets.     

Animal Spirits,Financial Markets,and Aggregate Instability

This paper examines whether people's animal spirits were drivers of U.S. business cycle fluctuations. In the context of an estimated macroeconomy with endogenous financial market frictions, allowing for “psychological” or nonfundamental expectational shocks improves the fit of the model and, at the posterior mode, these shocks account for well over one-third of output fluctuations. Exogenous financial frictions are considerably less important. U.S. data favor the indeterminacy model over versions of the economy in which animal spirits cannot play a role.     

Indeterminacy, aggregate demand, and the real business cycle

We show that under indeterminacy aggregate demand shocks are able to explain not only aspects of actual fluctuations that standard RBC models predict fairly well, but also aspects of actual fluctuations that standard RBC models cannot explain, such as the hump-shaped, trend reverting impulse responses to transitory shocks found in US output (Cogley and Nason, Am. Econom. Rev. 85 (1995) 492); the large forecastable movements and comovements of output, consumption and hours (Rotemberg and Woodford, Am. Econom. Rev. 86 (1996) 71); and the fact that consumption appears to lead output and investment over the business cycle. Indeterminacy arises in our model due to capacity utilization and mild increasing returns to scale.     

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.     

Macroeconomic Implications of “Deep Habits” in Banking

Recent empirical evidence shows that price‐cost margins in the market for bank credit are countercyclical in the U.S. economy and that this cyclical behavior can be explained in part from the fact that switching banks is costly for customers (i.e., from a borrower hold‐up effect). Our goal, in this paper, is to study the “financial accelerator” role of these countercyclical margins as a propagation mechanism of macroeconomic shocks. To do so, we apply the “deep habits” framework in Ravn, Schmitt‐Grohé, and Uribe (2006) to financial markets to model this hold‐up effect within a monopolistically competitive banking industry. We are able to reproduce the pattern of price‐cost margins observed in the data, and to show that the real effects of aggregate total factor productivity shocks are larger the stronger the friction implied by borrower hold‐up. Also, output, investment, and employment all become more volatile than in a standard model with constant margins in credit markets. An empirical contribution of our work is to provide structural estimates of the deep habits parameters for financial markets.     

住房价格、住房投资、消费与货币政策——基于金融加速器效应的DSGE模型研究

以BGG模型为基础建立包含金融加速器机制的DSGE模型,采用数值模拟方法研究中国货币政策冲击对住房价格与住房投资及消费的影响,结果表明金融加速器机制明显放大了货币政策冲击对三者的影响;与不带金融加速器模型相比,使用带有金融加速器效应模型分析时,中国货币政策冲击对房价、投资和消费的影响程度更大,并且更符合现实数据特征。模拟结果还显示货币政策对消费的影响与已有文献的结论存在差异,即货币政策冲击对消费短期影响较大,且影响持续时间也较长。     

Follow the money: The monetary roots of bubbles and crashes

A reduced form model for the join dynamics of liquidity and asset prices is proposed. The self-reinforcing feedback between credit creation and the market value of the financial assets employed as collateral in the bank loans (the so called financial accelerator) is modeled by a coupled non-linear stochastic process. We show that such non-linear interaction produces explosive dynamics in the financial variables announcing a regime change in finite time in the form of a market crash which can also be modeled by the same coupled non-linear stochastic process with inverted signs. Casting the financial accelerator dynamics into a highly stylized macroeconomic model, we study its macro-dynamics implications for real economy and for monetary policy interventions. Finally, by exploiting the implications of the proposed model on the dynamics of financial asset returns, we introduce an extension of the GARCH process, that can provide an early warning identification of bubbles.     

Endogenous Price Stickiness,Trend Inflation,and Macroeconomic Stability

Previous studies show that higher trend inflation is more likely to induce indeterminacy of equilibrium in sticky‐price models based on micro evidence that each period a fraction of prices is kept unchanged. This paper demonstrates that when the degree of price stickiness is endogenously determined in a Calvo model, indeterminacy caused by higher trend inflation is less likely. A key factor for determinacy is the long‐run inflation elasticity of output implied by the New Keynesian Phillips curve. This elasticity declines substantially with higher trend inflation in the case of exogenously given price stickiness, whereas in the case of endogenous price stickiness the decline in the elasticity is mitigated because higher trend inflation leads to a higher probability of price adjustment.     

Fire sales and the financial accelerator

During financial turmoil, increases in risk lead to higher default, foreclosure, and fire sales. This paper introduces a costly liquidation process for foreclosed collateral and pro-cyclical recovery rates in a dynamic stochastic general equilibrium model of the financial accelerator. Links between endogenous recovery rates, risk premia, and default risk generate a liquidity spiral, magnifying financial accelerator effects. We illustrate how collateral liquidation and monetary policy alter the real impact of financial shocks operating through macro-financial linkages; and the way a government subsidy on collateral liquidity and required liquidity buffers can help dampen the liquidity spiral by shoring up recovery rates.     

股指期货市场金融加速器效应的实证分析

金融加速器理论认为,由于存在着摩擦成本,金融市场的波动可能是非对称的,体现为相对于扩张金融市场状态,紧缩金融市场状态下冲击的波动更加剧烈,由此产生加速效应。本文采用向量自回归模型系列对次贷危机期间S&P500股指期货市场波动状态进行了计量检验,验证了其非对称波动的金融加速器效应,揭示了股指期货市场与股票现货市场之间的风险衍生机制,旨在为我国沪深300指数期货交易的风险防范提供借鉴。     

碳定价、双重金融摩擦与“双支柱”调控

本文构建包含异质性企业、双重金融摩擦和“双支柱”政策的DSGE模型来探究碳税和碳交易这两种碳定价政策对中国宏观经济的长短期影响和作用机制。研究发现:(1)两种碳定价政策均会导致经济在短期出现一定衰退,但在长期则有助于推进经济高质量发展,达到更高的均衡水平;(2)在面对碳排放技术冲击时,相比碳税政策,碳交易政策下,碳价大幅波动会进一步加剧经济波动,在碳交易市场中对碳价设定上下限,可以有效地减轻碳排放技术冲击所导致的经济波动;(3)面对气候政策冲击,包含金融部门风险规避的双重金融摩擦会进一步加剧气候政策对宏观经济的负面影响;(4)在经济转型过程中,结构性供需不平衡会引发一定的通胀现象,但此时货币政策不宜对通胀做出过多反应,而应刺激产出,支持绿色发展,推动供需平衡,从根源上解决通胀问题。引入“双支柱”调控后发现,考虑到经济转型风险的宏观审慎政策能显著减弱气候政策所导致的经济波动和金融不稳定,提高居民福利。     

User involvement in the standard-setting process: A research note on the congruence of accountant and user perceptions of decision usefulness

This is an exploratory study which examines whether accountants and users of financial statements hold congruent or incongruent views on the decision usefulness of accounting information. This issue is important to the question of whether users require direct involvement in the standard-setting process, or whether their views may be adequately represented in the process by other participants such as accountants. Drawing on the sociology of professions literature under which professionals, such as accountants, are assumed to seek to maintain the judgement domain and indeterminacy of their professional task, it is hypothesised that accountant and user views on decision usefulness will be incongruent in those situations where a change in accounting method reduces judgement domain or indeterminacy. Specifically, it is hypothesised that, compared to users, accountants will perceive a lower degree of decision usefulness to be associated with a change in accounting method that reduces judgement domain or indeterminacy. Using a survey questionnaire, developed around a series of accounting method change scenarios, and administered to a sample of accountants and investment analysts (as an example of users), support was found for our hypothesis in relation to judgement domain, but not for indeterminacy.     

Indeterminacy of competitive equilibrium in incomplete market structures with financial assets as an extreme form of market coordination breakdown

Market coordination breakdowns can be formulated in terms of Incomplete Market Structures, whatever is the assumption made about market power (monopoly or competition). When the assumption of competition is made, and financial assets generate an incomplete market structure, there are, generically, an infinite number of equilibria. It is shown that after embedding the model of incomplete markets in a more general model based on the absence of double coincidence of wants, a game theoretic concept of equilibrium, like the Core, allows us to prove an equivalence theorem, i.e. to show that indeterminacy is caused by the fact that the returns of financial assets have no direct utility.     

Fair value accounting,fragile bank balance sheets and crisis: A model

A topic of recent interest in accounting research has been the investigation of the role of fair value accounting (FVA) in the global financial crisis. This research focused on finding a link during the crisis time-period and often states that “accounting is only a messenger”. The model presented in this paper emphasises finding the link before the crisis and “accounting as money.” Use is made of an accounting model of the economy due to the inability of standard models of monetary transmission to incorporate global financial crisis characteristics such as feedback effects, systemic risk and the centrality of the financial sector in the crisis. The model shows FVA in banks to be an accelerator that amplifies the financial cycle upswing. Feedback effects noted in the model include changes in the demand for financial instruments and changes in demand in the real economy. Minsky-like, crisis is shown to be endogenous to the model, working through the fragility of balance sheets in the real sector as well as in the financial sector. Bank balance sheet fragility is caused by bad capital driving out good capital, banks reaching for yield and the inversion of the yield curve. The model shows that the practice of not meeting rising credit demand with increasing credit supply is an essential control mechanism in the financial cycle.     

行业特征、金融加速与企业债务融资

在政策择优供给、产业转型升级的关键阶段,考察特定行业的企业债务融资及其宏观、微观层面的影响因素,对于资金、资源的行业优化配置意义重大。本文以我国2003～2017年沪深A股上市公司为样本,检验企业受到货币政策冲击时行业特征对其银行债务获取的影响。研究发现,对于行业劳动力越密集、行业竞争越激烈的企业,货币政策紧缩对于债务融资的不利影响会被显著削弱。进一步研究发现,行业劳动要素在货币政策紧缩时引起的企业债务融资效应随着行业资本密集度的下降而增强;对于产出是耐用品的行业,货币政策的企业债务融资效应与产品市场竞争较弱的行业一致。本文是对货币政策传导机制下金融加速分析的拓展,补充了货币政策行业债务融资效应的经验证据。     

Monetary policy and financial stability: What role for the futures market?

This paper examines interactions between monetary policy and financial stability. There is a general view that central banks smooth interest rate changes to enhance the stability of financial markets. But might this induce a moral hazard problem, and induce financial institutions to maintain riskier portfolios, the presence of which would further inhibit active monetary policy? Hedging activities of financial institutions, such as the use of interest rate futures and swap markets to reduce risk, should further protect markets against consequences of unforeseen interest rate changes. Thus, smoothing may be both unnecessary and undesirable. The paper shows by a theoretical argument that smoothing interest rates may lead to indeterminacy of the economy's rational expectations equilibrium. Nevertheless, our empirical analysis supports the view that the Federal Reserve smoothes interest rates and reacts to interest rate futures. We add new evidence on the importance for policy of alternative indicators of financial markets stress.     

房价调控、地方政府债务与宏观经济波动

在地方政府债务高企的背景下,房价调控能否使资本流向非房地产部门？房价调控如果触发地方政府债务违约,宏观政策应如何应对？本文基于中国宏观经济的特征事实,引入地方政府的土地财政行为,将房价变动与地方政府的偿债能力联系起来。研究表明,由于地方政府依赖土地出让和土地抵押贷款筹集收入,房价管控导致的地价下降会带来地方政府收入的下降,直接影响地方政府的偿债能力。如果地方政府债务不出现违约,那么房价管控带来的地价下降会降低地方政府从金融部门获得的抵押融资额,使非基建部门的融资成本下降,非基建部门投资和产出上升。而如果调控房价带来的地价下降导致地方政府出现债务违约,金融部门资产受损,使金融中介减少贷款和提高贷款成本,带来整个社会的信贷紧缩,经济中各个部门的产出大幅下降。进一步的政策分析表明,有必要在避免地方政府债务违约的同时,使用财政资金补充银行资本金等多种方式稳定金融中介的资产负债表,从而将房价调控对经济的负面影响程度降到最低。     

Macroprudential regulation,credit spreads and the role of monetary policy

We study the macroprudential roles of bank capital regulation and monetary policy in a borrowing cost channel model with endogenous financial frictions, driven by credit risk, bank losses and bank capital costs. These frictions induce financial accelerator mechanisms and motivate the examination of a macroprudential toolkit. Following credit shocks, countercyclical regulation is more effective than monetary policy in promoting price, financial and macroeconomic stability. For supply shocks, combining macroprudential regulation with a stronger anti-inflationary policy stance is optimal. The findings emphasize the importance of the Basel III accords in alleviating the output-inflation trade-off faced by central banks, and cast doubt on the desirability of conventional (and unconventional) Taylor rules during periods of financial distress.