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Working Paper
The S-curve: Understanding the Dynamics of Worldwide Financial Liberalization
Using a novel database of domestic financial reforms in 90 countries from 1973 to 2014, we document that global financial liberalization followed an S-curve path: reforms were slow and gradual in early periods, accelerated during the 1990s, and slowed down after 2000. We estimate a learning model that explains these dynamics. Policymakers updated their beliefs about the growth effects of financial reforms by learning from their own and other countries' experiences. Positive growth surprises in advanced economies helped accelerate belief updating worldwide, leading to the global wave of ...
Working Paper
Social Network and Sentiment Contagion: Evidence from the Bitcoin Market
Using new data on social interactions and individual trading records in the Bitcoin market, we show that investor sentiment spreads across social connections. Investors systematically revise their beliefs about Bitcoin prices in the direction of average peer sentiment—even though that sentiment does not predict future prices. We document specific patterns in the diffusion of beliefs across networks, including evidence consistent with confirmation bias. Moreover, this social-sentiment contagion influences both individual trading decisions and overall market dynamics. Our novel measure of ...