Since Roll (The Journal of Finance 47(1):3-41, 1992) and Heston and Rouwenhorst (Journal of Financial Economics 36:3-27, 1994), there has been a debate whether country factors in international stock returns are typically more variable than sector factors. The addition of emerging markets (EMs)...

This note accompanies the Cross‐country Historical Adoption of Technology (CHAT) dataset. CHAT is an unbalanced panel dataset with information on the adoption of over 100 technologies in more than 150 countries since 1800. We discuss the main aim of CHAT, its scope and limitations, as well as...

This note accompanies the Cross-country Historical Adoption of Technology (CHAT) dataset. CHAT is an unbalanced panel dataset with information on the adoption of over 100 technologies in more than 150 countries since 1800. The data is available for download at: http://www.nber.org/data/chat We...

This paper presents a new data set on the diffusion of about 115 technologies in over 150 countries over the last 200 years. We use this comprehensive data set to uncover general patterns of technology diffusion. Our main 5 findings are as follows: (i) Once the intensive margin is measured,...