This paper uses a historical setting to study when religion can be a barrier to the diffusion of knowledge and economic development, and through which mechanism. I focus on 19th-century Catholicism and analyze a crucial phase of modern economic growth, the Second Industrial Revolution...

While human capital is a strong predictor of economic development today, its importance for the Industrial Revolution has typically been assessed as minor. To resolve this puzzling contrast, we differentiate average human capital (literacy) from upper-tail knowledge. As a proxy for the...