经济增长、结构失衡与流动性过剩——论我国当前流动性过剩的成因与对策

由于社会保障制度的不完善和分配结构的不合理,经济增长带来居民收入增长的同时,消费需求难以有效放大,储蓄和净出口的高增长成为必然。储蓄的高增长导致银行的存贷差上升,其分流导致股市和房市的流动性过剩;净出口的持续高增长和国际资本的大量涌入导致国际收支持续的高顺差。由于汇率缺乏弹性,基础货币的被动增加和货币乘数的预期外上升一并导致货币供给过剩。强化储备货币发行国的发行约束;调整外贸发展战略,优化产业结构;扩大消费需求;扩大汇率浮动区间;提高货币政策的科学性等措施可以有效控制和利用流动性过剩。     

准备金率和资本充足率影响商业银行贷款规模的机制分析

货币银行传统理论认为:货币当局以准备金率控制贷款规模,以资本充足率控制贷款风险。本文从分析准备金与资本充足率对贷款规模的约束机制入手,引入银行资产负债表模型,证明银行贷款规模主要受资本充足率影响。研究结论是:准备金率对贷款规模的控制作用已经弱化,资本充足率对贷款规模的控制作用趋强。     

人民币汇率变动的货币供给效应及其传递机制研究

人民币汇率的变动会影响中国的国际收支,进而对人民币供给形成冲击,即产生人民币汇率的货币供给效应。本文从静态和动态两个层面对人民币汇率的货币供给效应强度及其传递效果进行实证研究。结果表明,人民币汇率变动具有比较稳定的货币供给效应,这一效应随着人民币汇率弹性的增大而有所增强;从传递效果来看,人民币汇率对国际收支的作用效力较弱,而国际收支与货币供给的关联性很强,说明人民币汇率的货币供给效应在人民币汇率作用于国际收支这一传递环节发生了较大减损。为控制人民币汇率变动对货币供给的不利扰动,近期首先要加强对资本流入的监管,增强人民币汇率变动对国际收支影响的预期的准确性和可控性;其次是推进中国的外汇储备形成机制改革,切断或弱化国际收支影响货币供给的传递路径。从长远来看,要增强人民币汇率的调节作用,促进国际收支平衡。     

Macroprudential Policies and Housing Prices: A New Database and Empirical Evidence for Central,Eastern, and Southeastern Europe

Several countries in Central, Eastern, and Southeastern Europe used a rich set of prudential instruments during the recent credit and housing boom and bust cycles. We construct a comprehensive database of these policy measures covering 16 countries at a quarterly frequency. We use this database to investigate whether the policy measures had an impact on housing price inflation. The measures that appeared to be effective were capital measures (minimum capital adequacy ratio, maximum ratio of lending to households to share capital) and nonstandard liquidity measures (marginal reserve requirements (MRRs) on foreign funding, MRRs linked to credit growth).     

现行货币政策对县域经济金融的影响

为控制物价过快上涨,有效管理流动性,引导货币信贷总量合理增长,中国人民银行提高调控的针对性,自2010年以来已连续多次加息,尤其进入2011年,连续多次上调存款准备金率。本文就稳健的货币政策对县域经济的影响进行了分析,并提出相应建议。     

存款准备金政策与货币供给

存款准备金政策通常被认为是中央银行调控货币供给的有效工具。但是,从理论和实践可以证明,这一政策工具对货币供给的影响是很有限的。在商业银行有充裕的超额准备金时,法定准备金比率的调整只改变商业银行的准备金构成,而不改变准备金的总额,因而对基础货币和货币乘数都没有影响,或影响都很小;而当商业银行没有超额准备金或只有很少超额准备金时,法定准备金比率的上调将使准备金总额增加,从而使货币乘数缩小,但使基础货币增加。于是,货币乘数缩小对货币供给的影响将被基础货币增加对货币供给的影响所抵消。     

Endogenous Growth and Real Effects of Monetary Policy: R&D and Physical Capital Complementarities

We study the real long-run effects of the structural stance of monetary policy and of inflation, in the context of a monetary growth model where R&D is complemented with physical capital accumulation. We look into the effects on a set of real macroeconomic variables that have been of interest to policymakers—the economic growth rate, real interest rate, physical investment rate, capital-to-labor ratio, R&D intensity, and velocity of money. These variables have been previously analyzed from the perspective of different, separated, strands of the theoretical and empirical literature. Additionally, we analyze the long-run relationship between inflation and both the effectiveness of real industrial-policy shocks and the market structure, assessed namely by average firm size. We present novel cross-country evidence on the empirical relationship between the latter and long-run inflation.     

公司治理、资本监管与银行风险承担

选取2007-2017年中国25家上市银行数据,采用面板回归模型对公司治理与资本监管对银行风险承担的影响进行实证分析。研究表明：股权集中度与银行风险承担之间呈正U型关系,较低的股权集中度会降低银行风险资产配置权重,股权集中度的提升会加大银行风险承担。董事会规模会促进银行风险承担,董事会规模过大将平滑单个董事表决权,导致董事会控制效率下降而引发银行经营决策频繁变动,由此加大银行风险承担。资本监管会抑制银行风险承担,资本监管的趋严促使银行减持风险资产进行资本补充;资本监管对股份制银行、国有大型银行与城农商银行风险承担的影响力度依次递减。货币供给增速的放缓将降低银行存款吸收能力,由此加大银行流动性风险,货币供给对银行信贷存在制约效应;经济增速的下调将降低企业盈利能力,由此加大银行风险承担,银行存在顺周期放贷倾向。     

The Friedman Rule in a Model with Endogenous Growth and Cash‐in‐Advance Constraint

This paper introduces money into an overlapping‐generations model with endogenous growth. The main message of the paper is that as long as the modified golden rule is attained, the Friedman rule is optimal. The result holds regardless of the ability of the government to internalize the externality and control the level of human capital. Other results include: (i) violation of the Friedman rule for a different second‐best environment wherein human capital accumulation is controlled but not physical capital accumulation and (ii) existence of a negative relationship between money growth rate and the economy’s endogenous growth rate.     

Exchange rate flexibility and credit during capital inflow reversals: Purgatory … not paradise

We identify periods of capital inflows reversals—looking at both gross and net capital flows—and document the behavior of macro and credit variables in economies with different degrees of exchange rate flexibility. We find that more exchange rate flexibility moderates credit swings during capital flow cycles, mainly because it is associated with milder credit growth during the boom. Flexibility, however, cannot completely shield the economy from a credit reversal. We observe what we dub as a recovery puzzle: credit growth in economies with more flexible exchange rate regimes remains tepid well after the capital flow reversal takes place. This results stress potential complementarity of macro-prudential policies with the exchange rate regime. More flexible regimes could help smoothing the credit cycle through capital surcharges and dynamic provisioning that build buffers to counteract the credit recovery puzzle. In contrast, more rigid exchange rate regimes would benefit the most from measures to contain excessive credit growth during booms, such as reserve requirements, loan-to-income ratios, and debt-to-income and debt-service-to-income limits.     

Banks, private money, and government regulation

We study competition between inside and outside money in economies with trading frictions and financial intermediation. Claims on banks circulate if the redemption rate is low. When the quantity of fiat money is scarce, coexistence of inside and outside money dominates equilibria with a unique medium of exchange. If outside money is ample, banks choose to redeem claims in outside money, which increases welfare. Under binding reserve requirements, tightening monetary policy leads to credit rationing. Our results support recent trends toward lower reserve requirements. However, we also identify situations where restrictions on note issue are beneficial.     

A Model of QE,Reserve Demand,and the Money Multiplier

Quantitative easing (QE) programs have driven unprecedented expansions in the supply of central bank reserves around the world over the past two decades, fundamentally changing the implementation of monetary policy. The collapse in money multipliers following QE episodes has often been interpreted as implying banks are happy to passively hold most of the reserves created by QE. This paper develops a simple microsimulation model of the banking sector that adapts the traditional money multiplier model and allows for bank reserve demand to be inferred from monetary aggregates. The model allows the use of unwanted reserves by banks to play out over time alongside QE purchases and incorporates both significantly higher reserve demand after 2008 and capital constraints. With these additions, the model explains the persistently lower money multipliers seen in the United States following QE, as well as the growth in commercial bank deposits. The model suggests the demand from banks for reserves has increased substantially since the introduction of QE but not to the point where banks are passively absorbing all newly created reserves.     

Monetary randomness and investment

This paper develops a neoclassical model in which the behavior of the money supply affects investment by affecting the real distribution of asset returns. Investment depends on wealthholders' demand for capital. A stochastic money growth rule influences portfolio choice by affecting the distribution of the inflation rate. The variance of inflation matters to wealthholders because of the existence of assets with returns that are not indexed to changes in the price level: money and bonds which are contracted in nominal terms. In a rational expectations environment, asset demands will thus be sensitive to the distribution of the money growth rate. Our principle conclusion is that an increase in the variance of the money growth rate lowers investment, which complements Tobin's (1965) result that an increase in the mean stimulates capital accumulation. The paper also represents a step toward incorporating an asset market into a macroeconomic model in a manner which takes account of Lucas' (1976) criticism of econometric policy evaluation. All variables in the model, including asset return distributions, are functions of technology, preferences and the money supply rule. Further, expectations are rational.     

Accounting for reserves

Views on the effectiveness of sterilized reserve intervention vary. Sterilized intervention is generally seen as ineffective in advanced countries while persistent intervention by some emerging markets is often cited as contributing to undervalued exchange rates and current account surpluses. This paper argues that capital controls reconcile these views. We find strong and highly robust evidence that sterilized intervention is fully offset by outflows of private money in countries without controls, while controls partially block this offset. For a country with extensive capital controls, every dollar in additional reserves increases the current account by some 50–100 cents. This is mainly offset by an opposite adjustment in the current account of the United States—the dominant reserve currency issuer with the deepest and most liquid bond markets—with a smaller diversion to emerging markets.     

以新思维审视中国外汇储备风险

外汇储备是一国国际经济活动往来形成的特殊的外币债权,中国经常项目、资本和金融项目的特点以及热钱的大规模流入决定了中国当前的外汇储备存在一定的不稳定因素。过多的外汇储备必将产生较大的机会成本风险,并且面临着较大且频繁的汇率风险以及境外金融机构倒闭和资产价格波动的风险,给国内的流动性控制和金融调控带来诸多的困难,增加了贸易摩擦的频率。要审时度势,通过加快国内经济结构调整、鼓励走出去、多元化运作储备资产等形式规避中国外汇储备所面临的风险。     

Inflation,wealth and interest rates in an intertemporal optimizing model

This paper analyzes the relationship between the growth of the money supply and capital accumulation in a monetary optimizing model. Under certain conditions we show that a large intertemporal elasticity of substitution makes the nominal rates of interest undershoot its long-term value, that a low elasticity gives rise to overshooting, while a unitary elasticity is shown to make the nominal rate of interest a constant. These considerations plus explicit attention paid to the income and substitution effects induced by the changes in the nominal rates of interest provide us with an understanding of the correlation between growth of money and capital accumulation.     

A Growth Theory for the Insurance Industry

Insurance economics models of statics and comparative statics assume that the process of economic adjustment must inevitably lead to equilibrium. The question of attainability of equilibrium has not been addressed so far. This is the domain of dynamic analysis. In this article, we develop a model of economic growth for the insurance industry. The production function of the insurance industry is based on the assumption that the output, "incurred losses," is a function of "invested assets" and "other labor and nonlabor inputs." The latter grow at the rate  n , a proxy of the growth rate of insurance expenses. The assets–inputs ratio,  r , characterizes the steady-state growth path that the insurance industry eventually attains. The adjustment process takes place through the assets–losses ratio,  v , which is affected by the insurance leverage, the loss ratio, and the insurance exposure of the insurance industry. An insurance industry that has reached a steady state will have its output growing at the rate  n  +π, where π is the growth rate of average productivity. The incremental reserve ratio,  s , determines definitely a steady-state growth path for the insurance industry. An increase or decrease in  s  may move the insurance industry to a higher or lower growth path. We suggest that this analysis provides a stronger theoretical context for analyzing dynamic phenomena in the insurance industry.     

Government revenue from money creation with government and private money

For a stationary state, we show that if the government is as efficient as a competitive banking industry in producing money, then the substitution of private for government money does not alter the revenue from money creation or the present value maximizing holding cost of money. If households and non-banking firms hold both government and private money, then maximum present value requires that the reserve ratio maximize the monetary base and that the base nominal interest elasticity equal minus one. With perfect foresight, zero money balances and zero revenue from money creation is the only time consistent revenue maximizing solution.     

Why interest rates react to money announcements: An explanation from the foreign exchange market

When the Fed announces a money supply greater than had been expected, interest rates rise. Why? One explanation is that the market raises its estimate of the future rates of money growth and inflation, and bids up nominal interest rates. We offer contrary evidence: on such days the dollar appreciates, not depreciates. An alternative explanation is that the market perceives the change in the money stock as a transitory fluctuation that the Fed will reverse in the future. The anticipated future tightening raises today's real interest rate, causes a capital inflow, and appreciates the dollar, the result in fact observed.     

商业银行主动负债发展的经济效应

主动负债发展会带来商业银行间融资增加,通过分别设立模型研究商业银行间净融资规模增加和不同期限互相融资规模增加两种情况后,可以得出主动负债发展的微观经济效应:(1)净融资规模增加后银行流动性改善,资金投放规模增加;融资环境改善后商业银行备付金率可降低,流动性进一步提高.(2)商业银行彼此融资后,在不同期限资金投放业务上成本不同的银行会发挥各自相对优势,实现差异化经营,促使银行总收益增加.在上述微观分析基础上,通过对我国金融环境的具体分析,可以得出主动负债发展能推动我国利率市场化、发展金融市场、促进货币创造等宏观经济效应.