There are many reasons to want measures of countries' investments in human capital and especially their investments in formal education. We review the existing literature on the measurement of human capital. Broadly speaking, economists have proposed three approaches to the measurement of human...

Good data on the size and composition of the independent contractor workforce are elusive, with household survey and administrative tax data often disagreeing on levels and trends. We carried out a series of focus groups to learn how self-employed independent contractors speak about their work....