宏观审慎政策工具的有效性检验——基于对114家商业银行的实证分析

本文基于国际货币基金组织调查数据库构建中国宏观审慎政策工具综合指标,同时选取存款准备金率和贷款价值比上限代表宏观审慎政策工具,检验宏观审慎政策工具的有效性.通过对2008—2018年间我国114家商业银行的实证检验发现,无论是单一宏观审慎政策工具,还是宏观审慎工具综合指标,均能抑制信贷规模以及房价的快速增长,减少系统性风险的积累;且针对特定目标设立的宏观审慎政策工具的政策效果更为显著.进一步研究发现,宏观审慎政策工具在微观层面也能有效抑制银行风险.就具体的政策效果而言,相较于国有银行和股份制银行,规模较小的城商行和农商行对宏观审慎政策工具的反应更为敏感.     

The impact of macroprudential policies in Latin America: An empirical analysis using credit registry data

This paper summarises the results of a joint research project by five central banks in Latin America countries (Argentina, Brazil, Colombia, Mexico and Peru) to evaluate the effectiveness of macroprudential tools and their interaction with monetary policy. Using meta-analysis techniques, we summarise the results of a common empirical framework based on confidential bank-loan data. The main conclusions are that (i) macroprudential policies have been quite effective in stabilising credit cycles. The propagation of the effects to credit growth is more rapid for policies aimed at curbing the cycle than for policies aimed at fostering resilience; and (ii) macroprudential tools have a greater effect on credit growth when reinforced by the use of monetary policy.     

Loan-to-value policy and housing finance: Effects on constrained borrowers

This paper explores the effects of an LTV limit on constrained borrowers using comprehensive loan- and borrower-level data from Brazil. LTV limits entail identification challenges because constrained borrowers are no longer directly observed after the policy is implemented. In this paper, partially observed treatment status is addressed by an adjusted difference-in-difference method, focusing on the average treatment effect on the treated (ATT) borrowers (i.e. those that would violate the LTV limit if unconstrained). In the most affected segment, treated individuals cope with the new LTV limit by making higher down payments and also purchasing more affordable houses. They are also less likely to be in arrears, suggesting that LTV limits are effective macroprudential tools by lowering the risk of some originated housing loans.     

Credit cycle coherence in the eurozone: Was there a euro effect?

This paper examines effects of the euro introduction on credit cycle coherence in the eurozone through six channels. We construct and describe credit cycles for total bank credit, household mortgages and non-financial business loans for 16 EMU economies over 1990–2015. Credit cycle coherence is measured by synchronicity of cycle movements and similarity of their amplitudes. We find that the effect of euro introduction runs through elimination of currency risk and higher capital flows, which decrease coherence of total credit and mortgage credit cycles, but increase coherence of business credit cycles. Falling interest rates contribute to the convergence of total and mortgage credit cycles. Financial deregulation and legal harmonization are associated with lower coherence of all credit cycles, while trade openness has the opposite impact. The findings impinge on monetary policy effectiveness in the eurozone, with implications for macroprudential policy.     

房价波动、金融稳定与最优宏观审慎政策

本文通过构建包含家庭住房抵押借款摩擦和银行贷款摩擦的动态随机一般均衡模型,重点考察了异质性冲击下房价波动对金融稳定的影响。研究发现,房价上涨会导致银行风险溢价及杠杆率显著上升,进而加剧金融体系的内在不稳定。为降低房价波动及维护金融稳定,选取两类宏观审慎政策工具进行逆周期调控实验,结果表明,在住房需求冲击下,金融管理部门应选取贷款价值比政策,且应对房贷积极调控,而对房价进行中性调控。在最终产品部门生产率冲击、房地产部门生产率冲击及跨期偏好冲击下,应选取资本充足率政策,但对房贷和房价调控力度的把握则存在差异。本研究为厘清房价波动对金融稳定的动态传导机制,以及金融管理部门如何选取宏观审慎政策工具以稳定房价并降低系统性金融风险提供了启示。     

A macroprudential approach to address liquidity risk with the loan-to-deposit ratio

This paper maps the empirical features of the loan-to-deposit (LTD) ratio with an eye on using it in macroprudential policy to mitigate liquidity risk. We examine the LTD trends and cycles of 11 euro area countries by filtering methods and analyse the interaction between loans and deposits. We propose macroprudential policy to prevent an unsustainable level of the LTD ratio and policy measures to counter destabilizing cyclical developments.     

Optimal Macroprudential Policies and House Prices in Korea

This article investigates the impacts of the macroprudential policy of limitation on credit growth in housing market on Korean economy to find empirical and theoretical implications. Empirical results based on VAR models show that macroprudential policies like LTV and DTI in Korea have significant and persistent effect on real household credit and real house price. This article further addresses implications of optimal macroprudential and monetary policy in Korea by employing a standard DSGE model. The results suggest that the time-varying macroprudential policy responding to the borrower’s debt to income ratio is most effective in stabilizing household debt among the macroprudential policy rules considered, but produces a moderate downturn of the economy.     

Macroprudential policy in the EU: A political economy perspective

In response to the lessons of the global financial crisis, macroprudential policy is now firmly established as a financial policy area to prevent excessive risk taking in the financial sector and mitigate its effects on the real economy. However, macroprudential policy is facing several challenges relating to its political sensitivity and institutional context. These include political and interest group resistance, weaknesses in the governance framework, and limited institutional memory among policy makers. This article seeks to contribute to the contextual understanding of macroprudential policy by exploring how factors relating to these challenges influence policy in the EU. More specifically, it develops and empirically tests a number of hypotheses on how wider institutional and structural factors influence the actual use of macroprudential measures across Europe. The findings yield considerable support for theoretical predictions that institutions and contexts matter - Political pressure and interest group resistance tend to influence the intensity of macroprudential policy stances. Weaker policy stances characterise countries where banking systems depend on domestic banks, whereas the opposite holds for financial systems with significant market shares of other financial intermediaries. Results on institutional arrangements show that governance arrangements on relating to transparency influence policy stances. The results also indicate that policy makers' inertia is best counteracted by appointing a single macroprudential authority. The results differ somewhat depending on whether countries are based in the Euro zone or not. This suggests that policy frameworks that are multi-layered and complex pose tricky conundrums on how to ensure sufficient institutional autonomy, policy capacity and discretion among macroprudential authorities. This also has implications on other policy areas macroprudential policy, such as microprudential policy, crisis management and fiscal policy.     

对货币政策和宏观审慎政策双支柱调控框架内在逻辑的思考

本轮国际金融危机以来,金融稳定在中央银行政策目标中的重要性再次得到强化。随着具有顺周期波动特征的金融市场和金融资产规模显著增大,金融管理政策需要更加关注金融稳定和系统性风险问题,货币稳定和金融稳定“双目标”的重要性凸显出来。政策目标的变化相应要求优化和完善政策工具箱,需要健全宏观审慎政策框架作为应对系统性风险的工具,并与货币政策相互配合,形成由货币政策和宏观审慎政策“双支柱”支撑起“双目标”的基本框架,共同维护好货币稳定和金融稳定。在此框架中,货币政策和宏观审慎政策都不可或缺,须相互补充,形成合力,产生“一加一大于二”的政策效应增进效果。健全货币政策和宏观审慎政策双支柱调控框架,有利于把经济周期和金融周期更好地结合起来,把维护经济稳定与促进金融稳定更好地结合起来。下一阶段应进一步健全宏观审慎政策框架,并完善货币政策和宏观审慎政策协调配合的体制机制。     

宏观审慎监管框架下的央行职能研究

本次金融危机凸显了加强宏观审慎监管的必要性.目前,国际社会对宏观审慎监管的重要性展开了广泛探讨,各国监管当局也在实践中逐步推进宏观审慎监管.本文剖析了宏观审慎监管框架的三个重要核心部分,即宏观审慎政策目标、政策治理范围和操作工具,进而探讨宏观审慎政策与货币政策的关系及其对中央银行履职带来的挑战.研究发现,宏观审慎政策与货币政策之间的相互作用,决定了两者必须协调使用,因此中央银行应该在宏观审慎监管中发挥主要作用,确保货币政策和宏观审慎政策的一致性,避免监管摩擦和监管真空.在我国加强宏观审慎监管的实践中,由于人民银行承担着防范和化解系统性金融风险,维护金融稳定的职责,同时具备牵头建立金融监管协调机制的法定职能和监管银行间市场、外汇市场和支付体系的法定职权,从而决定了人民银行在宏观审慎监管中必然发挥主要作用.     

Banks’ lending behavior and monetary policy: evidence from Sweden

The main purpose of this paper is to investigate the aggregate data about bank loans which may hide significant information about the monetary transmission mechanism. This study, by disaggregating bank loans data and using the relevant interest rates in Sweden, investigates the behaviour of banks after a monetary policy tightening. By using an unrestricted VAR model and impulse response analysis, our results show that a shock on the policy rate affects the main components of the banks’ loan portfolios differently. Initially, banks do not reduce lending to firms and households and they present a sluggish reaction concerning the relevant interest rates. On the contrary, they reduce lending to mortgage credit institutions significantly since real estate lending can be considered as a risky long-term investment. Moreover mortgage credit institutions reduce lending for housing purposes to non-bank public. This reduction is mainly driven by flexible rate loans and loans secured on tenant owned apartments. Consequently, theses actions have a significant effect on real economic activity, by amplifying the initial shock from the tightening monetary policy. The latter result provides evidence of the bank lending channel in Sweden working via mortgage lending and could be very important for policy makers.     

Commercial Mortgage-Backed Securities: Prepayment and Default

One of the major developments in real estate finance during the 1990s was the emergence of a viable market for commercial mortgage backed securities. The growth in this market has spurred greater interest in empirical and theoretical research on commercial mortgage default and prepayment. We employ a competing risks model to examine the default and prepayment behavior of commercial loans underlying CMBS deals. We find that changes in the yield curve have a direct impact on the probability of mortgage termination. Furthermore, we do not find any statistical relationship between LTV and prepayment or default.     

Macroprudential measures and developments in bank funding costs

In this paper, we study how the use of macroprudential policy instruments is associated with bank funding costs. To accomplish this, we develop several macroprudential indices based on policy objectives and include different macroeconomic and bank-level variables, while we also separately analyse the cost of debt and overall cost of funding. Our analysis relies on bank-level data in 43 European countries for the period between 2000 and 2017, and a macroprudential policy dataset based on an IMF survey. The results show the activation of macroprudential policies is chiefly related with lower bank funding costs, with this association being stronger for developed countries than emerging ones. The results also reveal positive links with certain macroprudential measures to bank cost of funding, offering further insight into the repercussions of calibrating and selecting macroprudential tools.     

借贷便利创新工具有效影响了商业银行贷款利率吗？

本文基于手工收集的2009—2017年中国银行业数据,利用我国借贷便利工具创新这一准自然实验,以借贷便利工具的运用需要商业银行提供合格担保品这一要求为切入点,考察了借贷便利工具对商业银行贷款利率的影响。研究发现,借贷便利工具创设后,商业银行持有的合格担保品规模越大,其贷款利率越低,且这一效应随着时间推移逐渐增强。进一步的作用机制检验发现,央行的借贷便利操作扩大了商业银行向中央银行借款规模和贷款投放规模,从而有效降低了商业银行贷款利率,也表明借贷便利工具可通过商业银行合格担保品渠道发挥作用。因此,可以通过调整借贷便利操作规模、操作利率以及合格担保品范围的方式有效影响商业银行贷款利率进而发挥对社会融资成本的调控作用。     

The effects of macroprudential policy on banks' profitability

We estimate the effects of macroprudential policy on bank profitability, using a sample of 7250 global banks over 1990–2018. A number of policy measures have a negative impact on profitability, but these effects vary according to countries' economic development, bank type and time period. Macroprudential policy also adversely affects profitability of small and highly capitalised banks more than larger and less capitalised banks. Comparing our results with existing estimates of the impact of macroprudential policy on credit expansion, some measures are found to reduce lending but not profitability; others affect both negatively; and some affect profitability with no significant effect on lending. Since it is desirable for banks to make profits and thus be able to build up capital from retained earnings, our results suggest that care is needed in choosing measures according to their effects on bank profitability.     

宏观审慎政策理论基础解析

宏观审慎政策是在本次金融危机后由国际清算银行牵头,于2010年在G20国家峰会上通过的未来全球金融监管通行规则。现有中文文献多将目光聚焦在对宏观审慎政策的目标、工具与有效性的认识和解释上,本文则是从宏观审慎政策的理论基础出发,从不同的角度和侧面来描述刻画宏观审慎政策的目标和内容,厘清其完整脉络,为全面实施宏观审慎监管提供理论依据。     

Credit cycles and capital flows: Effectiveness of the macroprudential policy framework in emerging market economies

I assess the effectiveness of macroprudential policy tools in containing credit cycles per se or the impact of portfolio inflows on the cycles in major emerging market economies. The results show that borrower-based tools, measures with a domestic focus, and domestic reserve requirements are particularly effective. The findings are, in most cases, stronger for the recent period during which most of the macroprudential actions are undertaken, and generally hold for alternative definitions of credit cycle, the monetary policy stance, and portfolio inflows. Weaker results emerge for financial-institutions-based or foreign-currency related macroprudential tools.     

Banking Market Size Structure and Financial Stability: Evidence from Eight Asian Countries

Using commercial bank data from eight major Asian countries, we examine the relationship between the banking market size structure and the stability of financial institutions. We also analyze the effect of bank upsizing on the financial stability. Our results show that a rise in large banks’ market power, accompanying an increase in their market shares, lowers the capital adequacy of small banks. Small banks’ nonperforming loans and the possibility of their bankruptcy also increase as large banks’ market shares rise. We further show that larger banks tend to have lower capital adequacy ratios, liquidity ratios, and distance-to-default ratios. Our study suggests that large banks’ greater market shares are associated with small banks’ financial instability. Overall, these findings are consistent with the notion of the recent banking literature that has important antitrust policy implications.     

Adverse selection in mortgage securitization

Using several large data sets of mortgage loans originated between 2004 and 2007, we find that in the prime mortgage market, banks generally sold low-default-risk loans into the secondary market while retaining higher-default-risk loans in their portfolios. In contrast, these lenders retained loans with lower prepayment risk relative to loans they sold. Securitization strategy of lenders changed dramatically in 2007 as the crisis set in with most unwilling to retain higher-default-risk loans in return for lower prepayment risk. Contrary to the prime market, the subprime market does not exhibit any clear pattern of adverse selection.     

The sensitivity of bank stock returns to real estate

According to the Federal Reserve Board, banking firms have recently been shifting significantly larger portions of their loan portfolios into real estate. This increase in real estate lending has caused concern about the continuing economic health of banks on the part of state and federal regulators, since changes in real estate returns, evidenced by changes in property value, can potentially have a significant impact on bank default risk and profit-ability. However, concerned parties do not seem to have explicitly considered the relationship between mortgage default risk and the specific characteristics of real estate investments.This study examines the sensitivities of stock returns for different bank groups, based on the percentage of total loans in real estate and the percentage of loans in five different mortgage categories (construction and development loans, farmland loans, one- to four-family residential loans, multifamily residential loans, and nonresidential and nonfarm loans), to changes in real estate market returns. This is done by developing and using a three-index model.The results of this study indicate that bank stocks, overall, are very sensitive to changes in real estae returns. Banks, with a larger portion of their total loans invested in all types of real estate loans, except farmland loans, are most sensitive to changes in real estate returns.