In response to the Global Financial Crisis, central banks engaged in large-scale asset purchases funded by the issuance of reserves. These "unconventional" policies continued during the pandemic, so that by 2022 central banks' balance sheets had grown up to ten-fold. As a result of rapidly...

Stress tests applied to individual institutions are an important tool for evaluating financial resilience. However, financial systems are typically complex, heterogeneous and rapidly changing, raising questions about the adequacy of conventional tests. In this paper, we interpret the current...

In this history of the first decade of ECB policy, we also discuss key challenges for the next decade. Beyond the ECB's track record and an array of published critiques, our analysis relies on unique source material: extensive interviews with current and former ECB leaders and with other...

This paper explores the link between financial conditions and economic activity. We first review existing measures, including both single indicators and composite financial conditions indexes (FCIs). We then build a new FCI that features three key innovations. First, besides interest rates and...

Among the many challenges facing the new Eurosystem is the possibility that the regions of the euro area will respond differently to interest rate changes. In this essay, I provide evidence that differences in financial structure are the proximate cause for these national asymmetries in the...

Realizing that their traditional instruments were inadequate for responding to the crisis that began on 9 August 2007, Federal Reserve officials improvised. Beginning in mid-December 2007, they implemented a series of changes directed at ensuring that liquidity would be distributed to those...

Modern central bankers are the risk managers of the financial system. They take actions based not only on point forecasts for growth and inflation, but based on the entire distribution of possible macroeconomic outcomes. In numerous instances monetary policymakers have acted in ways designed to...

The accelerated introduction of information and communications technology into the economy has created numerous challenges for policymakers. This paper describes this New Economy and then proceeds to examine difficulties created for policymakers. The increased flexibility of the new economy...

The design of rules for central bank policy has been a subject of increasing interest to many monetary economists. The purpose of this essay is first to present an analytical structure in which a policymaker is presumed to formulate a rule based on the solution to an optimal control problem, and...

Over the four years beginning in the summer of 1929, financial markets, labor markets and goods markets all virtually ceased to function. Throughout this, the government policymaking apparatus seemed helpless. Since the end of the Great Depression, macroeconomists have labored diligently in an...