Quantitative easing in an open economy—Not a liquidity but a reserve trap

Expansionary monetary policy is ineffective in a liquidity trap. In another case, which we call a “reserve trap,” money supply increase is trapped in bank reserves; there is no credit expansion through the banking system. In such case, quantitative easing (QE) will not boost credit to the real sector and revitalize the economy. To analyze a reserve trap, we modify the open economy model to include multiple interest rates. Trade is included since exports can be financed externally even during domestic credit constriction. We show the conditions under which QE can lead to currency depreciation and trigger an export-led recovery.     

Money creation within the macroeconomy: An integrated model of banking

We develop a monetary framework to describe a macroeconomic system consisting of households, firms, the government, the central bank, and banks. The framework is based on the balance sheets of all sectors, in which the monetary flows between them govern the dynamics of the items. The whole system evolves over time and eventually attains a stationary state. Using this integrated model, we find that all flows coming from banks, including issuing loans, purchasing bonds, paying dividends, and paying interest on deposits, create money. On the contrary, all flows going to banks, including receiving repayments, selling bonds, issuing equities, and receiving interest on loans and bonds, destroy money. These flows associated with the behaviors of money creation and destruction are core factors that determine stationary states. We show the relationships between these flows and stationary stocks, especially the quantity of money. We also present the dependence of final output on these flows. We analyze the effects of monetary policies, such as changing the rate on loans and the amount of bank reserves. We find that an increase in the rate may yield higher output, while injecting more reserves may result in lower output.     

Payment obligations,reserve requirements,and the demand for central bank balances

We develop a model in which a bank's demand for reserves depends on the joint distribution of transactions, reserve requirements, and the interest rate. By devoting resources to its liquidity management, a bank can save on costly reserves required to settle its payments on time. We test the model with data from the largest banks in the Swiss Interbank Clearing system. We find that the turnover ratio (the speed with which a bank turns over its reserves in the payment system) depends largely on the aggregate value of its payments. We also find that reserve requirements impose a highly uneven burden on the banks.     

Financial capital movements and central bank behavior in a two-country,short-run portfolio balance model

This paper analyzes financial capital movements in a two-country, short-run, portfolio balance model which includes two securities that are imperfect substitutes. Following a disturbance, equilibrium is, in general, reattained, but the effects on interest rates, money supplies, and international reserve holdings depend on the monetary and reserve asset management policies of the two central banks. Special attention is focused on the case in which one central bank holds its international reserves in the form of ‘key currency’ securities, thereby sterilizing for the ‘key currency’ country. There are several applications of the central result that, for any disturbance, the less changes in international reserves are allowed to affect money supplies, the larger the change in reserves required to reestablish equilibrium.     

Central Bank Digital Currency,Credit Supply,and Financial Stability

We examine the implications of central bank digital currency (CBDC) for credit supply and financial stability using a monetary general equilibrium model. The introduction of deposits in CBDC account decreases credit supply by banks, raising the nominal interest rate and lowering a bank's reserve-deposit ratio. This increases the likelihood of bank panic in which banks exhaust cash reserves. However, once the central bank can lend all the deposits in CBDC account to banks, an increase in the quantity of CBDC which does not require reserve holdings can enhance financial stability by increasing credit supply and lowering nominal interest rate.     

电子货币对存款准备金制度的冲击效应研究

本文以电子货币为视角,将电子货币引入存款准备金制度的理论分析框架,在理论分析及对传统货币模型修正的基础上,选择电子货币与存款准备金政策相关的变量,建立数量经济模型。通过统计检验发现：电子货币放大了货币乘数,并使货币乘数变得不稳定,从而加大了中央银行通过存款准备金政策影响货币乘数来调节商业银行信用创造能力的难度,削弱了存款准备金政策的效率。     

Bank Mergers, Competition, and Liquidity

We model the impact of bank mergers on loan competition, reserve holdings, and aggregate liquidity. A merger changes the distribution of liquidity shocks and creates an internal money market, leading to financial cost efficiencies and more precise estimates of liquidity needs. The merged banks may increase their reserve holdings through an internalization effect or decrease them because of a diversification effect. The merger also affects loan market competition, which in turn modifies the distribution of bank sizes and aggregate liquidity needs. Mergers among large banks tend to increase aggregate liquidity needs and thus the public provision of liquidity through monetary operations of the central bank.     

货币政策、银行资本与风险承担

考虑存款准备金率作为我国货币政策的重要工具,本文在D-L-M模型中引入了法定存款准备金,分析了货币政策对银行风险承担的影响,发现货币政策对银行风险承担的影响取决于银行资本状况。接着利用我国14家上市银行的季度数据,采用门限面板回归模型实证分析了货币政策对银行风险承担的影响。实证结果表明紧缩的货币政策对银行风险承担     

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.     

Money, banking, and monetary policy

An important function of banks is to issue liabilities, like demand deposits, that are relatively safe and liquid. We introduce a risk of theft and a safe-keeping role for banks into modern monetary theory. This provides a general equilibrium framework for analyzing banking in historical and contemporary contexts. The model can generate the concurrent circulation of cash and bank liabilities as media of exchange, or inside and outside money. It also yields novel policy implications. For example, negative nominal interest rates are feasible, and for some parameters optimal; for other parameters, strictly positive nominal rates are optimal.     

货币政策在银行危机管理中的效果

本文从货币政策的信贷传导渠道出发,探讨了金融危机条件下商业银行资本管理、准备金需求的变化、信贷配给对货币政策有效性的影响机制。分析表明,货币政策的有效性不仅取决于中央银行的政策意图,还受制于商业银行资本量、风险偏好以及信贷配给程度的变化。因此,强化危机时期的货币政策效果必须配合影响银行信贷行为的措施。     

The integration of the offshore and domestic banking system

The thesis of this article is that offshore banks are branches of the major U.S., British, Swiss, German, Japanese, etc., banks situated in ‘monetary havens’ jurisdictions in which they are subject to minimal regulation, especially to requirements that they must hold non-interest bearing reserves against their deposits. Each bank determines the maximum interest rate to pay on offshore deposits as a function of the maximum interest rate on domestic deposits and the implicit tax on reserve requirements. The more rapid growth of offshore deposits than of domestic deposits during the last several decades reflects two factors — the implicit tax on domestic deposits has increased with the upward movement in interest rates and investor assessment of the risk associated with external deposits has decreased. The effective reserve requirement applicable to each bank is the weighted average of requirements applied to its domestic deposits and to its offshore deposits. Because offshore deposits have grown more rapidly than domestic deposits, the effective reserve requirement has decreased: the fractional reserve multiplier has increased. Because the growth of offshore deposits to domestic deposits appears highly variable, the effectiveness of monetary control has declined.     

基于VAR模型的我国外汇储备、货币供应量与信贷规模关系研究

1994年外汇管理体制改革以来我国外汇储备持续增长,已成为世界上外汇储备最多的国家。巨额外汇储备使得货币供应量增加,银行信贷规模不断扩大。结合2006年至2013年季度数据,基于VAR模型运用协整方法探讨我国外汇储备、货币供应量及银行信贷规模的关系,并通过脉冲响应和方差分解予以进一步分析。结果表明,三变量之间存在长期稳定的均衡关系,外汇储备的增长促进货币供应量的增加,而货币供应量的增加又进一步推动了银行信贷规模的扩张。最后,基于以上分析提出相关对策建议。     

The Effects of Liquidity Regulation on Bank Demand in Monetary Policy Operations

We estimate the effects of the liquidity coverage ratio (LCR), a liquidity requirement for banks, on the tenders that banks submit in Term Deposit Facility operations, a Federal Reserve tool created to manage the quantity of central bank reserves. We identify these effects using variation in LCR requirements across banks and a change over time that allowed term deposits to count toward the LCR. Banks subject to the LCR submit tenders more often and submit larger tenders than exempt banks when term deposits qualify for the LCR. These results suggest that liquidity regulation affects bank demand in monetary policy operations.     

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。     

Reserve requirements and optimal seigniorage

This note presents a model of optimizing agents who chose to hold deposits at financial intermediaries, which are required to hold fractional reserves of fiat money. When the stock of fiat money is expanded, the reserve requirement functions as a tax on deposits. The combination of reserve requirements and inflation results in a lower steady-state utility than a direct tax on deposits. The optimal monetary policy when reserves are required is to minimize reserve requirements and inflate without limit the stock of fiat money.     

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。     

The effects of shifts in monetary policy and reserve accounting regimes on bank reserve management behavior in the federal funds market

This paper looks at the effects on Fed fund rates and Fed fund purchasing behavior of large banks resulting from (i) the 1982 regime switch from non-borrowed to borrowed reserve targeting by the Fed and (ii) the 1984 switch from lagged to almost contemporaneous reserve accounting (CRA). Whether we analyse changes in the interest-rate or quantity dimensions, the shift in monetary policy targets appeared to have had a more profound effect on the market for bank reserves than the shift in reserve accounting regime. These results, therefore, tend to support the contention that a shift to CRA by itself will have little effect on bank reserve management behavior unless combined with its logical counterpart — a total reserves target.     

Getting out from between a rock and a hard place: Can china use its foreign exchange reserves to save its banks?

Recently, the central bank of China lent part of its enormous reserve of foreign exchange to two of its largest banks in difficulty. This seemed to be a very clever policy response since the capital infusion did not affect the money supply nor sacrifice the currency peg as has traditionally been the case. This paper considers the viability of this policy and asks why other Southeast Asian countries with large reserves of foreign exchange did not adopt a similar approach to combat their bank problems in the 1990s.