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Author:Sanches, Daniel R. 

Working Paper
Private money and banking regulation

We show that a competitive banking system is inconsistent with an optimum quantity of private money. Because bankers cannot commit to their promises and the composition of their assets is not publicly observable, a positive franchise value is required to induce the full convertibility of bank liabilities. Under perfect competition, a positive franchise value can be obtained only if the return on bank liabilities is sufficiently low, which imposes a cost on those who hold these liabilities for transaction purposes. If the banking system is monopolistic, then an efficient allocation is ...
Working Papers , Paper 15-19

Working Paper
On the welfare properties of fractional reserve banking

Superseded by Working Paper 15-20. Monetary economists have long recognized a tension between the benefits of fractional reserve banking, such as the ability to undertake more profitable (long-term) investment opportunities, and the difficulties associated with fractional reserve banking, such as the risk of insolvency for each bank. The goal of this paper is to show that a specific form of private bank coalition (a joint-liability arrangement) allows the members of the banking system to engage in fractional reserve banking in such a way that the solvency of each member bank is completely ...
Working Papers , Paper 13-32

Journal Article
The optimum quantity of money

A central premise of monetary policy in the U.S. throughout the first decade of the 21st century has been a firm commitment to avoid deflation. Indeed, it is the consensus view of policymakers and most economists. Nonetheless, Nobel laureate Milton Friedman proposed that optimal monetary policy should lead to a steady rate of deflation. For some economists, the Friedman rule is mainly a benchmark for thinking clearly about the assumptions underlying our models and a systematic guide for deciding how to modify our models, that is, a way of making scientific progress. However, it is not an ...
Business Review , Issue Q4 , Pages 8-15

Working Paper
Private liquidity and banking regulation

The authors show that the regulation of bank lending practices is necessary for the optimal provision of private liquidity. In an environment in which bankers cannot commit to repay their creditors, the authors show that neither an unregulated banking system nor narrow banking can provide the socially efficient amount of liquidity. If the bankers provided such an amount, then they would prefer to default on their liabilities. The authors show that a regulation that increases the value of the banking sector?s assets (e.g., by limiting competition in bank lending) will mitigate the commitment ...
Working Papers , Paper 12-11

Working Paper
Banking panics and protracted recessions

This paper develops a dynamic theory of money and banking that explains why banks need to hold an illiquid portfolio to provide socially optimal transaction and liquidity services, opening the door to the possibility of equilibrium banking panics. Following a widespread liquidation of banking assets in the event of a panic, the banking portfolio consistent with the optimal provision of transaction and liquidity services during normal times cannot be quickly reestablished, resulting in an unusual loss of wealth for all depositors. This negative wealth effect stemming from the liquid portion of ...
Working Papers , Paper 14-37

Working Paper
Optimal monetary policy in a model of money and credit

The authors study optimal monetary policy in a model in which fiat money and private debt coexist as a means of payment. The credit system is endogenous and allows buyers to relax their cash constraints. However, it is costly for agents to publicly report their trades, which is necessary for the enforcement of private liabilities. If it is too costly for the government to obtain information regarding private transactions, then it relies on the public information generated by the private credit system. If not all private transactions are publicly reported, the government has imperfect public ...
Working Papers , Paper 11-4

Working Paper
Banking panics and protracted recessions

This paper develops a dynamic model of bank liquidity provision to characterize the ex post efficient policy response to a banking panic and study its implications for the behavior of output in the aftermath of a panic. It is shown that the trajectory of real output following a panic episode crucially depends on the cost of converting long-term assets into liquid funds. For small values of this liquidation cost, the recession associated with a banking panic is protracted. For intermediate values, the recession is more severe but short lived. For relatively large values, the contemporaneous ...
Working Papers , Paper 15-39

Working Paper
Optimal monetary policy in a model of money and credit

The authors investigate the extent to which monetary policy can enhance the functioning of the private credit system. Specifically, they characterize the optimal return on money in the presence of credit arrangements. There is a dual role for credit: It allows buyers to trade without fiat money and also permits them to borrow against future income. However, not all traders have access to credit. As a result, there is a social role for fiat money because it allows agents to self-insure against the risk of not being able to use credit in some transactions. The authors consider a (nonlinear) ...
Working Papers , Paper 11-28

Working Paper
Financial Instability with Circulating Debt Claims and Endogenous Debt Limits

This paper develops a banking model in which intermediaries issue liabilities that circulate as a medium of exchange to finance loans to entrepreneurs, who use the proceeds to fund the accumulation of capital goods. The issuance of circulating liabilities, together with endogenous debt limits, gives rise to a franchise value for intermediaries. A competitive equilibrium with endogenous debt limits admits allocations that are characterized by a funding crisis and a self-fulfilling collapse of the banking system, with the intermediary’s franchise value eroding over time. In view of these ...
Working Papers , Paper 20-45

Working Paper
On the inherent instability of private money

Superseded by Working Paper 15-18. We show the existence of an inherent instability associated with a purely private monetary system due to the role of endogenous debt limits in the creation of private money. Because the bankers? ability to issue liabilities that circulate as a medium of exchange depends on beliefs about future credit conditions, there can be multiple equilibria. Some of these equilibria have undesirable properties: Self-fulfilling collapses of the banking system and persistent fluctuations in the aggregate supply of bank liabilities are possible. In response to this inherent ...
Working Papers , Paper 12-19



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