Both the anomalies of education history, and its less surprising contrasts, fit broad patterns that can be revealed and partially explained using low-tech methods. Over most of human history, contrasts in the output of education were driven mainly by contrasts in the supply of tax support for...

Ashenfelter and Krueger's (1993) within-twin, measurement-error- corrected estimate of the return to schooling is about 13-16 percent. If their estimate is unbiased, then their results imply considerable downward measurement error bias in uncorrected within-twin estimates of the return to...

This paper reviews the evidence regarding the main trends in the height of the British population since the early eighteenth century. We argue that the average heights of successive birth cohorts of British males increased slowly between the middle of the eighteenth century and the first quarter...

This paper proposes a new and unified explanation for the following trends observed over the last 25 years: (1) the increased returns to education, (2) the slow measured growth in TFP in an economy undergoing massive changes in its methods of production, and (3) the poor wage performance,...

The foundations for successful child development are established in early childhood. Two main policy approaches for strengthening these foundations have been subsidized preschool programs and programs targeting the home environment. Our chapter reviews a large body of empirical work...