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Discussion Paper
When Do Trade Frictions Increase Liquidity?
Economists tend to assume that frictions that limit trading in financial markets reduce liquidity and lower investor welfare. In this blog I discuss a recent staff study of mine that challenges that conventional wisdom. I explain how introducing trading frictions—such as circuit breakers—that slow or halt trading in an over-the-counter market experiencing a fire sale might, paradoxically, lead to higher liquidity and investor welfare.