How does culture affect development policy, and how does development policy affect culture? If we don’t take account of cultural norms or fail to learn about how they interact with well-intentioned polices, then this gap in our knowledge may be undermining development projects. Can better measurement and collaboration with other social sciences fill these gaps? A new paper investigates what we know about the culture, policy, and economic development, and Natalie Bau of UCLA, Sara Lowes of UC San Diego, and Eduardo Montero of the University of Chicago tell Tim Phillips about the potential, and pitfalls, of research into culture.