Stablecoins and Crypto Shocks: An Update

Stablecoins are crypto assets whose value is pegged to that of a fiat currency, usually the U.S. dollar. In our first Liberty Street Economics post, we described the rapid growth of stablecoins, the different types of stablecoin arrangements, and the May 2022 run on TerraUSD, the fourth largest stablecoin at the time. In a subsequent post, we estimated the impact of large declines in the price of bitcoin on cumulative net flows into stablecoins and showed the existence of flight-to-safety dynamics similar to those observed in money market mutual funds during periods of stress. In this post, we document the growth of stablecoins since 2019, including the evolution of the reported collateral backing major stablecoins. Then, we estimate the impact on the stablecoin industry of large bitcoin price increases that occurred between 2021 and 2025.
Interoperability of Blockchain Systems and the Future of Payments

In a previous post, we introduced a three-pillar framework for interoperability of payment systems and discussed how technological, legal, and economic factors contribute to achieve interoperability and aid in the “singleness of money”—that payments and exchange are not subject to volatility in the value of the money itself—in the context of legacy systems. In this post, we use the framework to characterize the interoperability of blockchain systems and propose a methodology for evaluating interoperability. We show evidence of limited interoperability and draw insights for the future of payment systems.
Stablecoins and Crypto Shocks

In a previous post, we described the rapid growth of the stablecoin market over the past few years and then discussed the TerraUSD stablecoin run of May 2022. The TerraUSD run, however, is not the only episode of instability experienced by a stablecoin. Other noteworthy incidents include the June 2021 run on IRON and, more recently, the de-pegging of USD Coin’s secondary market price from $1.00 to $0.88 upon the failure of Silicon Valley Bank in March 2023. In this post, based on our recent staff report, we consider the following questions: Do stablecoin investors react to broad-based shocks in the crypto asset industry? Do the investors run from the entire stablecoin industry, or do they engage in a flight to safer stablecoins? We conclude with some high-level discussion points on potential regulations of stablecoins.
Runs on Stablecoins

Stablecoins are digital assets whose value is pegged to that of fiat currencies, usually the U.S. dollar, with a typical exchange rate of one dollar per unit. Their market capitalization has grown exponentially over the last couple of years, from $5 billion in 2019 to around $180 billion in 2022. Notwithstanding their name, however, stablecoins can be very unstable: between May 1 and May 16, 2022, there was a run on stablecoins, with their circulation decreasing by 15.58 billion and their market capitalization dropping by $25.63 billion (see charts below.) In this post, we describe the different types of stablecoins and how they keep their peg, compare them with money market funds—a similar but much older and more regulated financial product, and discuss the stablecoin run of May 2022.
Supply Chains, Student Debt, and Stablecoins—The Top 5 Liberty Street Economics Posts of 2022

“Kitchen table” issues were on the minds of our readers in 2022, though what was labeled as such was perhaps a bit broader than in the past. Supply chains—now firmly placed on the radar of Main Street—were the subject of the year’s top post by number of page views and accounted for three of the top five (we’ll consider them as one for this roundup). Student debt forgiveness and inflation were also in the news, drawing readers to our preview of various possibilities for the (subsequently announced) federal student loan forgiveness program and a quarterly update of a New York Fed economic forecast model. Posts on more technical topics were popular as well, including an update on the Federal Reserve’s balance sheet “runoff” and a discussion of stablecoins. Underscoring their broad appeal, the year’s top two posts rank among the top five in the history of Liberty Street, which dates back to 2011. Read on to see which posts resonated most with readers.
The Future of Payments Is Not Stablecoins

Stablecoins, which we define as digital assets used as a medium of exchange that are purported to be backed by assets held specifically for that purpose, have grown considerably in the last two years. They rose from a market capitalization of $5.7 billion on December 1, 2019, to $155.6 billion on January 21, 2022. Moreover, a market that was once dominated by a single stablecoin—Tether (USDT)—now boasts five stablecoins with valuations over $1 billion (as of January 21, 2022; data about the supply of stablecoins can be found here). Analysts have started to pay increased attention to the stablecoin market, and the President’s Working Group (PWG) on Financial Markets released a report on stablecoins on November 1, 2021. In this post, we explain why we believe stablecoins are unlikely to be the future of payments.