This thesis groups three papers examining the role of multi-location firms in the geographic diffusion of knowledge. The first chapter examines whether a firm's headquarters can tap into the knowledge pool in a remote location through FDI. Using U.S. patent data, I show that an R&D headquarters...

Recent research argues that among former New World colonies a nation's past dependence on slave labor was important for its subsequent economic development (Engerman and Sokoloff, 1997, 2002, 2006; Sokoloff and Engerman, 2000). These studies argue that specialization in plantation agriculture based...

Can part of Africa’s current underdevelopment be explained by its slave trades? To explore this question, I use data from shipping records and historical documents reporting slave ethnicities to construct estimates of the number of slaves exported from each country during Africa’s slave...

Recent research argues that among former New World colonies a nation’s past dependence on slave labor was important for its subsequent economic development (Engerman and Sokoloff, 1997, 2002). It is argued that specialization in plantation agriculture, with its use of slave labor, caused...