资本账户开放与国际金融冲击的传导——基于DSGE模型的分析

本文在动态随机一般均衡的框架下,建立了一个包括贸易部门和非贸易部门的小型开放经济模型,系统研究和比较资本管制与资本账户开放两种情况下,国外金融冲击、出口需求冲击对中国经济的不同影响和传导机制,并检验资本账户开放情形下应对国际冲击时不同货币政策规则的有效性。结果发现：当资本账户开放时,一国受到国外冲击的波动幅度远大于资本管制的情况;资本管制和资本账户开放对国际金融冲击传导机制的关键差异在于贸易部门与非贸易部门的互动关系,具体表现为劳动力转移的差异;在资本账户开放后,面对不同形式的国际冲击,货币数量型规则和混合型规则均能有效熨平经济波动。     

Economic Volatility and Capital Account Liberalization in Emerging Countries

Economic volatility has increased drastically in the age of financial liberalization. The tendency among mainstream economists has been to explain this trend by government misdeeds and various market imperfections. For instance, government overspending was the main culprit in the first generation models of currency crises. Following the Asian crisis the emphasis shifted onto capital flow reversals, and arguments based on the ‘moral hazard’ problems began to replace the emphasis on the monetized government deficits. This paper outlines an explanation of economic volatility that is not based on moral hazard problems or other market distortions. Two stylized facts associated with the aftermath of financial and capital account liberalization are singled out for emphasis and brought together in the context of a macroeconomic framework that draws from Keynes’ Treatise. These are: (i) liquidity preference becomes intertwined with currency substitution, producing a macroeconomic destabilizer that explains procyclical changes in bank credit independently of moral hazard problems; and (ii) asset prices become fairly easy to predict, stimulating destabilizing ‘trend’ speculation by foreign investors, which means that profit seeking and market rationality might lie behind erratic shifts in capital flows.     

中国上市公司商业信用 周期性变化的宏观经济动因研究

本文为了揭示中国上市公司商业信用周期性变化的宏观经济动因,构建了一个宏观经济因素影响上市公司商业信用行为的理论分析框架,从宏观和微观两个层面分析了宏观经济发展状况、货币政策和通货膨胀水平对中国上市公司商业信用周期性变化的影响机理。利用中国上市公司季度面板数据进行了实证检验。结果显示,随着货币政策宽松、宏观经济扩张和通货膨胀水平的增加,中国上市公司提供的商业信用净额都显著降低。这些研究结果折射出,当货币政策收紧或宏观经济收缩时,商业信用资金从上市公司部门流向非上市企业部门;反之,当货币政策过度宽松或宏观经济过度扩张时,上市公司部门通过商业信用渠道从非上市企业部门吸纳商业信用资金。     

Housing and credit market shocks: Exploring the role of rule-based Basel III counter-cyclical capital requirements

This paper examines the extent to which the Basel III bank capital regulation attenuates fluctuations in housing and credit markets and fosters financial and macroeconomic stability. We use a positive housing demand shock to mimic a housing market boom and a negative financial shock for credit squeeze and economic meltdown. The results show that the rule-based Basel III counter-cyclical capital requirement effectively attenuates fluctuations in housing and credit markets and prevents bubbles. In the case of a negative financial shock, it significantly reduces the magnitude of economic meltdown. Our analysis of the transition from Basel II to Basel III suggests that it is the counter-cyclical capital buffer that effectively mitigates the pro-cyclicality of its predecessor, while the impact of the conservative buffer is marginal. In contrast to the credit-to-GDP ratio, the optimal policy analysis suggests that the regulatory authority should adjust the capital requirement to changes in credit and output when implementing the counter-cyclical buffer. Future research could extend the study by comparing the effectiveness of the rule-based Basel III with other macroprudential tools in achieving financial and macroeconomic stability.     

Contagion effects of sovereign credit rating revisions on the real economy: is it trade or finance?

We analyse the contagion effects of sovereign credit rating revisions on the real economy, with particular emphasis on the intensity of trade and finance channels. Our findings show that event countries that experienced rating revisions cause substantial contagion effects on the real output growth rates of nonevent countries. Nonevent countries with a high export ratio, high external debt levels, or those that are more dependent on common bank credit relative to other nonevent countries are more likely to be infected by event countries’ adverse credit shocks. The results remain after accounting for alternative real economy indicators, financial liberalization, financial crises, and economic development status.     

Entrepreneurial ignition of the business cycle: The corporate finance of malinvestment

This paper provides an extension of the Austrian Business Cycle Theory (ABCT) framework by integrating corporate capital structure, the monetary policy transmission channel, and capital budgeting analyses. In this manner, the paper presents the business cycle as being exogenously set up by central bank authorities, but endogenously set off by commercial banks and enterprises making use of central bank-distorted market signals. The cyclical boom is modeled as a gradual process where both latitudinal and longitudinal investment expansions are possible with either internal or external finance. Bank credit creation, although a necessary condition for igniting the boom, is diversely transmitted to the economy because of heterogeneity in entrepreneurial misjudgment, corporate capital structure strategies, and the class of projects available to the enterprises.     

The Economy‐wide Impacts of a Rise in the Capital Adequacy Ratios of Australian Banks

Regulators are requiring banks to raise additional equity to finance their activities. The benefits are understood in terms of reducing the risks of another financial crisis. But there are potential costs, including the potential for unanticipated macroeconomic impacts as banks reduce leverage. We use a financial computable general equilibrium model, containing disaggregated treatment of financial agents, to explore the economy‐wide consequences of an increase in bank capital adequacy ratios. We find that the macroeconomic consequences are small.     

CORRUPTION AND CORPORATE FINANCE PATTERNS: AN INTERNATIONAL PERSPECTIVE

Abstract.  This study demonstrates the importance of government corruption in shaping corporate finance patterns across countries. Corruption contributes to a more prevalent and higher degree of corporate equity ownership concentration and more reliance on bank financing in raising external finance. It argues that corporate governance under corrupt governments is particularly poor. Firm management, taking advantage of political capital acquired through bribery, is especially powerful in expropriating from outside investors. Ownership concentration and reliance on bank financing are means of mitigating the corporate governance problem under a corrupt government.     

Trade liberalization and credit constraints: Why opening up may fail to promote convergence

This paper examines credit constraints as one channel held responsible for hampering economic convergence between countries. Specifically, we extend a Melitz and Ottaviano ( 2008 ) type trade model with variable mark‐ups to allow for endogenous technology adoption. We consider a framework with two countries that potentially differ with respect to credit market development. Firms have the option to adopt a more efficient technology by paying some fixed cost that is more costly to finance for financially constrained firms. We find that technology adoption increases in both countries after trade liberalization but more so in the financially more developed country: the productivity gap widens. Simulations show that the welfare gap widens too. Opening up without sufficient access to external funding thus fails to promote convergence.     

小企业融资理论及实证研究综述

本综述主要围绕小企业融资需求、信贷配给及宏观经济政策冲击三方面的内容展开。严重的信息不对称以及所有者个人与企业的高度融合决定了小企业融资需求与传统理论之间存在着相当的差距 ,信贷配给问题在小企业当中表现突出。但也有观点认为 ,引入决定企业存活的真正因素———人力资本之后 ,新建企业并不存在信贷配给 ,这为相关政策的制定开启了新的思路。最后 ,由于小企业受宏观政策变化的影响较大 ,也需要引起有关部门的足够重视 ,以达到不同规模企业协调发展的目的     

Fiscal deficits,banking crises and policy reversal in a semi-open economy

We study the effect of domestic policies and external shocks in a semi-open economy characterized by incomplete liberalization of the financial sector. We argue that in such transition economies stabilization programs can have a negative impact on the fiscal imbalances, offsetting to some extent the very achievement of the stabilization program. We develop a simple general equilibrium model which allows propagation of shocks in the presence of government guarantees and imperfect capital mobility. We also empirically test the impact of positive foreign interest shock on the Indian economy using a reduced form VAR approach. The econometric evidence, though broadly consistent with the main predictions of the model, suggests no significant impact of foreign interest rate shock on output and credit. We conclude that incomplete liberalization of the financial sector in transition economies has two effects. It reduces i) exposure to external financial shocks (like the current credit crisis) and ii) ability to deal with real sector shocks (which may arise from global recession in the medium term) due to endogenous policy reversals and presence of government guarantees.     

经济政策不确定性、产权性质与商业信用

本文以经济政策不确定性为研究出发点,选取2007年第1季度-2014年第4季度沪深A股的上市公司,讨论了经济政策不确定性对企业商业信用规模的冲击。实证结果表明：当经济政策不确定性较高时,企业获得的商业信用规模总体上有缩小的趋势;国有企业会凭借产权优势抑制企业商业信用规模的下降;而较快的经济增长速度和较差的金融市场环境也会抑制企业商业信用规模的下降。本文的研究结果表明,经济政策不确定性对企业的商业信用规模确实存在冲击,商业信用作为企业维持经营的重要手段需引起特别重视。     

What impact do differences in financial structure have on the macro effects of bank capital requirements in the United States and Australia?

We investigate the influence of jurisdictional differences in financial structure on the economic consequences of bank capital regulation. We use two disaggregated financial computable general equilibrium models to compare the impacts of identical increases in bank capital adequacy ratios in the U.S. and Australia. In both models, this raises bank equity financing shares, and lowers banks’ risk-weighted asset holdings. Thereafter however, differences in financial structure drive contrasting outcomes: in the U.S., average costs of capital fall, stimulating real investment, while we find the opposite outcome for Australia. We attribute this to differences in the structure of bank assets (U.S. banks hold more risk-free assets) and the importance of banks as intermediaries (bank finance is more important to capital formation in Australia). This may explain why capital regulations encompass non-banks in the U.S. but not Australia.     

Unexpected loan losses and bank capital in an estimated DSGE model of the euro area

We present a stylized DSGE model in which banks face unexpected losses in their loan portfolios and are subject to capital regulation. The framework is used to explore the importance of the interaction between macroeconomic conditions, credit default and bank capitalization for the transmission of macroeconomic shocks. We fit the model to euro area data. Impulse response analysis shows that the aforementioned interaction substantially magnifies the responsiveness of the economy to demand side and monetary disturbances. The amplification is especially strong with respect to government spending shocks. The model is further capable of replicating two financial market characteristics that are documented in the empirical literature, i.e. the pro-cyclicality of bank profitability and the counter-cyclical response of firm default rates and credit spreads to monetary policy shocks.     

A capital adequacy buffer model

We develop a new capital adequacy buffer model (CABM) that is sensitive to dynamic economic circumstances. The model, which measures additional bank capital required to compensate for fluctuating credit risk, is a novel combination of the Merton structural model, which measures distance to default and the timeless capital asset pricing model (CAPM), which measures additional returns to compensate for additional share price risk. We apply the model to a portfolio of mid-cap loan assets over a 10-year period that includes pre-GFC (global financial crisis), GFC and post-GFC. An analysis of actual defaults over this period shows the model to be far more accurate in determining the capital adequacy levels needed to counter credit risk than an unresponsive ratings model such as the Basel standardized approach.     

Basel II procyclicality: The case of South Africa

This paper studies the impact of bank capital regulation on business cycle fluctuations. In particular, we study the procyclical nature of Basel II claimed in the literature. To do so, we adopt the Bernanke et al. (1999) “financial accelerator” model (BGG), to which we augment a banking sector. We first study the impact of a negative shock to entrepreneurs' net worth and a positive monetary policy shock on business cycle fluctuations. We then look at the impact of a negative net worth shock on business cycle fluctuations when the minimum capital requirement increases from 8 percent to 12 percent. Our comparison studies between the augmented BGG model with Basel I bank regulation and the one with Basel II bank regulation suggest that, in the presence of credit market frictions and bank capital regulation, the liquidity premium effect further amplifies the financial accelerator effect through the external finance premium channel, which, in turn, contributes to the amplification of Basel II procyclicality. Moreover, under Basel II bank regulation, in response to a negative net worth shock, the liquidity premium and the external finance premium rise much more if the minimum bank capital requirement increases, which, in turn, amplify the response of real variables. Finally, small adjustments in monetary policy can result in stronger response in the real economy, in the presence of Basel II bank regulation in particular, which is undesirable.     

农地确权、信任转换与农村金融 的新古典发展*

兼具资本、不动产和商品三种属性的土地，可以作为陌生人社会中的声誉载体。它可以被商业银行接受为抵押品并用于控制借款者的违约风险。土地确权也可以因此促进农村金融的现代化发展。本文理论模型及其实证分析表明：土地确权可以从广度、交易环境、深度和宽度四个方面，促进农村金融的内生发展。本文研究还发现：土地确权不仅提高了制度信任在商业银行风险控制中的重要性，还降低了商业银行对人际信任和社会资本的过度依赖。通过促进人际信任向制度信任的模式转换，土地确权有利于农村金融的新古典式发展。     

World Interest Shocks, Capital, and the Current Account

Macroeconomic performance in many developing countries is influenced by international credit conditions. This paper considers a developing economy that faces an upward-sloping supply function of debt. It analyzes how a particular foreign shock, a world interest shock, influences such key macroeconomic variables as output, investment, the current account, and the terms of trade in both short-run and steady-state equilibrium. An intertemporal optimizing model is used to study these issues. This approach permits characterization of the intertemporal adjustment of the indebted economy, and shows that a world interest shock lowers overall economic welfare.     

The role of banks in CESEE countries: exploring non-standard determinants of economic growth

This paper explores the finance–growth nexus in 14 countries from Central, Eastern and South-eastern Europe (CESEE) over the 1995–2015 period. It investigates whether including two ‘non-standard’ variables, i.e. a credit cycle dummy and foreign bank relevance, deepens our understanding of the role of a typical financial determinant of economic growth, i.e. bank credit. We find evidence of a negative impact of bank credit on economic growth and the significance of cyclical fluctuations of bank credit. In contrast, a higher market share of loans granted by foreign-owned banks in a cyclical upswing and stock market capitalisation are found to have a proactive effect on growth.     

中国资本账户开放、利率市场化和汇率制度弹性化

开放经济下,资本流动、利率和汇率三者相互联动、相互协调、自动平衡。利率市场化是资本账户开放和汇率制度弹性化的前提条件;资本控制程度影响利率市场化和汇率制度弹性化;利率和汇率相互作用、相互传导。一国宏观经济调控政策的效果不仅仅取决于资本控制程度和利率或汇率水平的变动,更取决于资本控制、利率和汇率三者的联动效应。中国金融自由化改革进程中,必须正确处理好资本账户开放、利率市场化和汇率制度弹性化之间的关系,发挥三者联动协同效应,实现内外均衡。