Listen to Prof. Lisa Cook's Planet Money Interview to address the following: (a) How is the research of Prof. Lisa Cook and Prof. Paul Romer related? (b) Briefly discuss the relationship between the Tulsa race massacre and the variables in the Romer model for the growth rate of labor efficiency. (c) How has racism limited economic growth in the United States from the perspective of endogenous growth theory? (d) Briefly discuss the relationship between the Tulsa race massacre, property rights, and endogenous growth.