This paper explores how non-U.S. central banks behave when firms in their economies engage in currency mismatch, borrowing more heavily in dollars than justified by their operating exposures. We begin by documenting that, in a panel of 53 countries, central bank holdings of dollar reserves are...

We conduct a systematic analysis of the costs and benefits of large-scale securities purchases, using the Federal Reserve's QE4 program as a concrete example. This program was initiated at the onset of the pandemic in March 2020 and continued for two years, leading to a doubling of the Fed's...

We study the effects of an anticipated dollarization, announced today but planned to be implemented at some future date, in a simple open-economy model. Motivated by the profile of countries considering dollarization we make the following assumptions. First, the government faces a scarcity of...

In this paper I analyze the work on exchange rates and external imbalances by University of Chicago faculty members during the university's first hundred years, 1892-1992. Many people associate Chicago's views with Milton Friedman's advocacy for flexible exchange rates. But, of course, there was...

This paper assesses the proximate causes of the post pandemic surge in US inflation, the Federal Reserve's real time reaction to and interpretation of incoming data in 2021, and the pivot to raising rates and shrinking the balance sheet that commenced in 2022 and continues in 2023. Particular...

I separately identify and estimate the effects of the Federal Reserve's federal funds rate, forward guidance, and large-scale asset purchase (LSAP) policies on the U.S. economy. I extend the high-frequency identification strategy of Bauer and Swanson (2023b) for monetary policy VARs by allowing...