Presidential Address: Social Transmission Bias in Economics and Finance
70 Pages Posted: 28 Apr 2020 Last revised: 10 Sep 2020
Date Written: March 12, 2020
I discuss a new intellectual paradigm, social economics and finance: the study of the social processes that shape economic thinking and behavior. This emerging field recognizes that people observe and talk to each other. A key, underexploited building block of social economics and finance is social transmission bias: a systematic directional shift in signals or ideas in social transactions. I use five “fables” (models) to illustrate the novelty and scope of the transmission bias approach, and offer several emergent themes. For example, social transmission bias compounds recursively, which can help explain booms, bubbles, return anomalies, and swings in economic sentiment.
Keywords: Social Transmission Bias, Social Economics, Social Finance, Behavioral Economics, Behavioral Finance, Social Networks, Social Learning, Information Percolation, Biased Percolation, Epidemiology, Visibility Bias, Self-Enhancing Transmission Bias
JEL Classification: A10, D03, D1, D21, D60, D84, D85, D91, G00, G02, G1, G11, G12, G14, G3, K00, M2, M21, M4, Z1, Z10, Z
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