This document discusses the potential for behaviorally informed policies to impact economic policy design. While behavioral economics has revolutionized economic theory, its impact on policy has been limited so far. There are several open issues, including how to generalize findings from controlled experiments to complex real-world contexts. The document argues that behavioral research needs to integrate with complexity research to account for diversity of behaviors, learning over time, strategic interactions, and interconnected decisions in order to fully realize its potential to inform policy.