This paper examines the role of individual instruction and teacher quality in determining economic growth and convergence across school districts. The model shows that if teacher quality is more important for human capital accumulation than individual instruction, human capital convergence will...

This paper creates a new data set on the physical capital at the state level for the United States from 1840 through 2000. We combine these new data with state level human capital and income data to do standard growth accounting exercises and to estimate the contribution of aggregate input...