Both human capital and nonhuman capital play an important role in economic growth. Estimates of nonhuman (physical) capital exist for many more countries than for human capital. Recently there has been a significant increase in the number of countries for which estimates of human capital exist,...

In this paper we estimate China's human capital stock from 1985 to 2007 based on the Jorgenson-Fraumeni lifetime income approach. An individual's human capital stock is equal to the discounted present value of all future incomes he or she can generate. In our model, human capital accumulates...

This paper constructs updated measures of productive highway capital stocks at the total, Interstate, Non-interstate, and Local System levels to estimate the contribution of all highways (all public roads) to GDP growth. It presents three types of contribution to GDP growth estimates and an...