A loss of solvency increases central bank vulnerability, reducing the credibility of commitments to defend a nominal regime, including an exchange rate peg. This paper develops a methodology to assess central bank solvency and exposure to risk. The measure, based on Value-at-Risk, is frequently...

This paper evaluates ways to protect highly dollarized banking systems from systemic liquidity runs (such as the ones that took place recently in Argentina, Uruguay, and Paraguay). In view of the limitations of available (private or official) insurance schemes, and the distortions introduced by...

This paper develops a model of the lender of last resort. It provides an analytical basis for “too big too fail” and a rationale for “constructive ambiguity”. Key results are that if contagion (moral hazard) is the main concern, the Central Bank (CB) will have an excessive (little)...

We provide a multidimensional characterization of monetary policy frameworks across three pillars: Independence and Accountability, Policy and Operational Strategy, and Communications (IAPOC). We construct the IAPOC index by analyzing central banks' laws and websites for 50 advanced economies,...

As central banks across the globe have responded to the COVID-19 shock by rounds of extensive monetary loosening, concerns about their inequality impact have grown. But rising inequality has multiple causes and its relationship with monetary policy is complex. This paper highlights the channels...

This paper presents a rule for foreign exchange interventions (FXI), designed to preserve financial stability in floating exchange rate arrangements. The FXI rule addresses a market failure: the absence of hedging solution for tail exchange rate risk in the market (i.e. high volatility). Market...

This article surveys the literature on sovereign debt sustainability from its origins in the mid-1980s to the present, focusing on four debates. First, the shift from an "accounting based" view of debt sustainability, evaluated using government borrowing rates, to a "model based" view which uses...

A central bank must decide on the frequency with which it will conduct open market operations and the variability in short-term money market that it will allow. It is shown how the optimal operating procedure balances the value of attaining an immediate target and broadcasting the central...

Given the rapidly declining demand for central bank reserves and their gradual replacement in wholesale payments by alternative forms of money—clearinghouse moneyand treasury money—this paper discusses whether the complete extinction of base money could undermine monetary control. It argues...