Information Cascades and Social Learning

TL;DR

This paper reviews the development of the theory of information cascades and social learning over thirty years, highlighting key themes, insights, applications, open questions, and future research directions.

Contribution

It provides an integrated, accessible overview of the main themes, insights, and applications of information cascades and social learning theory, emphasizing recent developments.

Findings

Summarizes key concepts and developments in social learning and cascades.

Identifies open questions and promising research directions.

Highlights applications in social and economic contexts.

Abstract

We review the theory of information cascades and social learning. Our goal is to describe in a relatively integrated and accessible way the more important themes, insights and applications of the literature as it has developed over the last thirty years. We also highlight open questions and promising directions for further theoretical and empirical exploration.