Financial integration and business cycles in a small open economy

The purpose of this study is to examine a dynamic, stochastic, general equilibrium framework with financial and informational frictions and foreign borrowing in the case of money growth and technology shocks for a small open economy and to analyze the implications of varying degrees of financial integration for aggregate fluctuations and propagation mechanisms in the economy. The existence of informational asymmetries among the agents in the model necessitates financial intermediation in the economy. Moreover, there is uncertainty involved in the production process which leads to collateralized borrowing by firms and, therefore, has to be taken into account in the design of the loan contracts between firms and financial intermediaries. It is shown that increasing financial integration amplifies the effect of a positive, temporary monetary shock on output, consumption, investment, labor demand and loans; whereas it has barely any implication for the impact of a positive, temporary technology shock on the economy.     

Financial liberalization and contagion with unobservable savings

How does the presence of decentralized market-based channels for borrowing and lending affect financial integration and financial contagion? To answer this question, I develop a two-country model of financial intermediation, where banks have access to country-specific investment technologies, and agents can borrow and lend in an international hidden market. In this environment, the possibility of hidden borrowing and lending has three main effects. First, it improves welfare with respect to the autarkic equilibrium, by allowing gains from “hidden” financial integration. Second, it halts the process of “official” financial integration. Third, it lowers the resilience of the economy to unexpected shocks to fundamentals.     

Credit and Banking in a DSGE Model of the Euro Area

This paper studies the role of credit supply factors in business cycle fluctuations using a dynamic stochastic general equilibrium (DSGE) model with financial frictions enriched with an imperfectly competitive banking sector. Banks issue collateralized loans to both households and firms, obtain funding via deposits, and accumulate capital out of retained earnings. Loan margins depend on the banks' capital‐to‐assets ratio and on the degree of interest rate stickiness. Balance‐sheet constraints establish a link between the business cycle, which affects bank profits and thus capital, and the supply and cost of loans. The model is estimated with Bayesian techniques using data for the euro area. The analysis delivers the following results. First, the banking sector and, in particular, sticky rates attenuate the effects of monetary policy shocks, while financial intermediation increases the propagation of supply shocks. Second, shocks originating in the banking sector explain the largest share of the contraction of economic activity in 2008, while macroeconomic shocks played a limited role. Third, an unexpected destruction of bank capital may have substantial effects on the economy.     

Commercial bank seigniorage and the macroeconomy

This article focuses on the role of commercial banks as creators of money, and specifically on their rent extraction power in the form of seigniorage. The article examines how the relative size of banks in the payment system combines with their capacity (and limits) to determine quantities and prices in the market for demand deposits, giving them the power to extract rents – seigniorage – from the economy, and clarifies the distinction between seigniorage from commercial bank money creation and profits from pure financial intermediation. The article studies how this form of seigniorage affects aggregate output, prices, and resource distribution, and draws political-economy and economic-policy implications.     

Financial development,financial structure,and domestic investment: International evidence

Does it matter for domestic investment whether a country's financial system is bank-based or stock-market based? This paper posits that financial intermediation affects domestic investment notably by alleviating financing constraints, allowing firms to increase investment in response to increased demand for output. The key result is that the structure of the financial system has no independent effect on investment, in the sense that it does not enhance the response of investment to changes in output, while financial development makes investment more responsive to output growth. Consequently, rather than promoting a particular type of financial structure, countries should implement policies that reduce transactions costs in financial intermediation and enforce creditor and investor rights. This will facilitate the development of banks and stock markets, which will stimulate domestic investment.     

金融周期对房地产价格的影响——基于SV-TVP-VAR模型的实证研究

本文利用2004-2016年的季度数据构建金融周期综合指数,用以描述金融市场景气程度;使用SV-TVP-VAR模型,围绕金融周期对我国房地产价格的影响进行实证研究。结果表明,金融周期对房地产价格的影响具有明显的时变性特征:2008年以前金融市场繁荣对房价有稳定推升作用,2008年后该影响持续弱化;与之类似,实体经济对房价的影响同样自2008年起逐渐减小。这意味着,在经济增长方式转变和经济结构调整的过程中,我国房地产价格对经济金融冲击的敏感度已经大幅下降,金融扩张可能难以再通过房地产市场有效带动实体经济的繁荣,相反,其反而可能导致银行贷款不良率的攀升,在金融系统内积累系统性风险。我国针对房地产的宏观调控政策不仅对控制贷款不良率的提高体现出积极作用,而且自2008年国际金融危机以来,产出及房价的随机波动率均呈显著下降趋势,风险得到有效控制。未来应更加重视房地产市场调控在宏观审慎政策框架中的重要地位,遏制房地产金融化泡沫化势头,防范房地产市场引发金融危机。     

Money stock revisions and unanticipated money growth

An important ‘empirical regularity’ is the strong positive effect of money shocks on output and employment. One strand of business cycle theory relates this finding to temporary confusions between absolute and relative price changes. These models predict positive output effects of unperceived monetary movements, but the quantitative importance of unperceived shifts in nominal aggregates is subject to question. Another strand of theory, based on long-term nominal contracts and analogous price-setting institutions, generates output effects from unanticipated, but not necessarily contemporaneously unperceived, money shocks. However, the real effects of unpredicted, but contemporaneously understood, monetary changes are not obviously consistent with efficient institutional arrangements. The present paper provides some empirical evidence on the two types of theories by analyzing the output effects associated with revisions in the money stock data, where the revisions are interpreted as components of unperceived monetary movements. The revisions turn out to have no significant explanatory power for output. Previous findings that innovations from an estimated money growth equation have a significant output effect remain intact when the revisions are included as separate explanatory variables. Overall, the study provides a small amount of evidence against the special role of unperceived, as opposed to unanticipated, money movements as a determinant of business fluctuations.     

Understanding Bank and Nonbank Credit Cycles: A Structural Exploration

We explore the structural drivers of bank and nonbank credit cycles using a medium-scale dynamic stochastic general equilibrium (DSGE) model with two types of financial intermediation. We posit economywide and sectoral disturbances in both macro and financial sectors. We estimate that sectoral shocks to the balance sheets of entrepreneurs are important for fluctuations in bank and nonbank credit growth at the business cycle frequency. Economywide entrepreneurial risk shocks gain predominance for explaining the lower frequency comovement between the two series. Macro shocks play very little role in explaining financial cycles.     

Is more finance better? Disentangling intermediation and size effects of financial systems

Financial systems all over the world have grown dramatically over recent decades. But is more finance necessarily better? And what concept of financial system – a focus on its size, including both intermediation and other auxiliary “non-intermediation” activities, or a focus on traditional intermediation activity – is relevant for its impact on real sector outcomes? This paper assesses the relationship between the size of the financial system and intermediation, on the one hand, and GDP per capita growth and growth volatility, on the other hand. Based on a sample of 77 countries for the period 1980–2007, we find that intermediation activities increase growth and reduce volatility in the long run. An expansion of the financial sectors along other dimensions has no long-run effect on real sector outcomes. Over shorter time horizons a large financial sector stimulates growth at the cost of higher volatility in high-income countries. Intermediation activities stabilize the economy in the medium run especially in low-income countries. As this is an initial exploration of the link between financial system indicators and growth and volatility, we focus on OLS regressions, leaving issues of endogeneity and omitted variable biases for future research.     

Habit formation and the persistence of monetary shocks

The dynamic effects and relative importance of monetary shocks in the US business cycle are studied using a sticky-price dynamic stochastic general equilibrium model with habit formation and capital adjustment costs. The model is estimated via maximum likelihood using data on output, real money balances, and the nominal interest rate. Econometric results indicate that the model has a strong internal propagation mechanism that can explain the persistent and hump-shaped response of US output and consumption to monetary shocks.     

How strong are the linkages between real estate and other sectors in China?

International experience points to the critical role of stable property markets in maintaining financial stability. This paper investigates the real and financial linkages between real estate sector and other sectors. The real linkage based on input–output analysis shows that the linkages have strengthened. The financial linkages in terms of credit risk spillovers across sectors are studied by using DAG method and SVAR. We find that that credit risk in the real estate sector has large-scale spillover effects onto other sectors. Consequently, shocks to the property market could have much larger impact on the Chinese economy than suggested by headline figures.     

Synamic banking: a reconsideration

Financially intermediated and stock market consumption-investmentallocations, with and without governmental interventions, arecompared in a welfare sense in overlapping generation economieswith (and without) shocks to agents' intertemporal preferences.We first show that, in economies with preference shocks, governmentalinterventions subject to the same information requirements asthose imposed on financial intermediaries, lead to stock marketallocations that are not inferior to those attained under financialintermediation. Second, we argue that the necessary interventionsare qualitatively no different from those required to implementstationary optimal allocations in OLG models without shocksto agents' intertemporal consumption preferences.     

Does bank lending affect output? Evidence from the U.S. states

This paper uses a panel of state-level data to test whether changes in bank loan supply affect output. Since the U.S. states are small open economies with fixed exchange rates, state-specific shocks to money demand are automatically accommodated, leading to changes in lending if banks rely on deposits as a source of funding. Using these shocks as an instrumental variable, I find that shocks to money demand have large and statistically significant effects on the supply of bank loans, but loans have small, often negative and statistically insignificant effects on output.     

Financial Development,Credit, and Business Cycles

How does financial development affect the magnitude of the business cycles fluctuations? We examine this question in a general equilibrium model with heterogeneous agents and endogenous credit constraints based on Kiyotaki (1998). We show that there is a hump‐shaped relationship between the degree of financial frictions and the amplification of unexpected productivity shocks. This nonmonotonic relation is due to the fall in financial frictions having two opposite effects on the response of output. One effect is the reallocation of productive inputs between agent types, which, while active, increases with the fall in financial frictions. The other effect is the change in the demand of inputs, which decreases with the fall in financial frictions. At low levels of financial development, the reallocation effect dominates and a fall in financial frictions increases the amplification of productivity shocks. In contrast, at higher levels of financial development, a fall in financial frictions decreases the shock amplification because the reallocation effect disappears while the effect on the demand of inputs is still present.     

Can banks individually create money out of nothing? — The theories and the empirical evidence

This paper presents the first empirical evidence in the history of banking on the question of whether banks can create money out of nothing. The banking crisis has revived interest in this issue, but it had remained unsettled. Three hypotheses are recognised in the literature. According to the financial intermediation theory of banking, banks are merely intermediaries like other non-bank financial institutions, collecting deposits that are then lent out. According to the fractional reserve theory of banking, individual banks are mere financial intermediaries that cannot create money, but collectively they end up creating money through systemic interaction. A third theory maintains that each individual bank has the power to create money ‘out of nothing’ and does so when it extends credit (the credit creation theory of banking). The question which of the theories is correct has far-reaching implications for research and policy. Surprisingly, despite the longstanding controversy, until now no empirical study has tested the theories. This is the contribution of the present paper. An empirical test is conducted, whereby money is borrowed from a cooperating bank, while its internal records are being monitored, to establish whether in the process of making the loan available to the borrower, the bank transfers these funds from other accounts within or outside the bank, or whether they are newly created. This study establishes for the first time empirically that banks individually create money out of nothing. The money supply is created as ‘fairy dust’ produced by the banks individually, "out of thin air".     

A lost century in economics: Three theories of banking and the conclusive evidence

How do banks operate and where does the money supply come from? The financial crisis has heightened awareness that these questions have been unduly neglected by many researchers. During the past century, three different theories of banking were dominant at different times: (1) The currently prevalent financial intermediation theory of banking says that banks collect deposits and then lend these out, just like other non-bank financial intermediaries. (2) The older fractional reserve theory of banking says that each individual bank is a financial intermediary without the power to create money, but the banking system collectively is able to create money through the process of ‘multiple deposit expansion’ (the ‘money multiplier’). (3) The credit creation theory of banking, predominant a century ago, does not consider banks as financial intermediaries that gather deposits to lend out, but instead argues that each individual bank creates credit and money newly when granting a bank loan. The theories differ in their accounting treatment of bank lending as well as in their policy implications. Since according to the dominant financial intermediation theory banks are virtually identical with other non-bank financial intermediaries, they are not usually included in the economic models used in economics or by central bankers. Moreover, the theory of banks as intermediaries provides the rationale for capital adequacy-based bank regulation. Should this theory not be correct, currently prevailing economics modelling and policy-making would be without empirical foundation. Despite the importance of this question, so far only one empirical test of the three theories has been reported in learned journals. This paper presents a second empirical test, using an alternative methodology, which allows control for all other factors. The financial intermediation and the fractional reserve theories of banking are rejected by the evidence. This finding throws doubt on the rationale for regulating bank capital adequacy to avoid banking crises, as the case study of Credit Suisse during the crisis illustrates. The finding indicates that advice to encourage developing countries to borrow from abroad is misguided. The question is considered why the economics profession has failed over most of the past century to make any progress concerning knowledge of the monetary system, and why it instead moved ever further away from the truth as already recognised by the credit creation theory well over a century ago. The role of conflicts of interest and interested parties in shaping the current bank-free academic consensus is discussed. A number of avenues for needed further research are indicated.     

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.     

Size,persistence and interrelation of nominal and real shocks: Some evidence from four countries

One of the major themes in Karl Brunner's work is the comparative size, persistence and interaction of real and monetary impulses. The paper uses a univariate, multi-state Kalman filter to forecast quarterly values of money, prices, output, velocity and exchange rates during the Bretton Woods and post-Bretton Woods monetary regimes and to compute shocks or impulses. Vector autoregression is used to relate the shocks and to compare the two regimes. Several propositions are tested including the Phillips curve, currency substitution, ‘reverse causation’ and the role of monetary impulses as a cause of fluctuations in output and prices.     

Exchange rate volatility and the time-varying effects of aggregate shocks

This paper investigates the dynamics of the real exchange rate and relative output among the US and five of its top six trading partners since the collapse of Bretton Woods. It employs long-run restrictions to identify the usual suspect macroeconomic shocks and their relative importance for exchange rate fluctuations. An improvement of the econometric application is that it allows for the contribution of each shock to the real exchange rate and relative output to vary over time. While the volatility of US output – both total and relative to that of the UK or Canada – is estimated to have substantially reduced since the mid-1980s, consistent with the Great Moderation findings of many others, the volatility of real exchange rates has experienced a gradual and continuous increase over the same period. Monetary shocks account for only a small fraction of these dynamics, although they do track well the increase in volatility of US output during the Great Inflation period. It is supply-type shocks that seem to be more important for the relative output volatility reductions of the mid-1980s. Conversely, demand shocks seem to account for the largest portion of the volatility increases in the real exchange rate. Perhaps unsurprisingly, both volatilities increase during the 2007 financial crisis and the ensuing 2008–2009 Great Recession – periods associated with higher economic uncertainty.     

Bank liabilities channel

The financial intermediation sector is important not only for channeling resources from agents in excess of funds to agents in need of funds (lending channel). By issuing liabilities it also creates financial assets held by other sectors of the economy for insurance or liquidity purpose. When the intermediation sector creates less liabilities or their value falls, agents are less willing to engage in activities that are individually risky but desirable in aggregate (bank liabilities channel). The paper shows how financial crises driven by self-fulfilling expectations about the liquidity of the banking sector are transmitted to the real sector of the economy. Since the government could also create financial assets by borrowing, the paper analyzes how public debt affects the issuance of liabilities by the financial intermediation sector.