A key challenge to theories of long-run economic growth has been linking the onset of modern growth with the move to modern fertility limitation. A notable puzzle for these theories is that modern growth in England began around 1780, 100 years before there was seemingly any movement to limit...

This reports on a preliminary investigation of surnames distributions as a measure long run social mobility. In England this suggests two surprising claims. First, England, all the way from the heart of the Middle Ages in 1250 to at least 1860, was a society without persistent social classes. It...

In this paper, we examine the changes in per-capita income and productivity from 1700 to modern times, and show four things: (1) that incomes per capita diverged more around the world after 1800 than before; (2) that the source of this divergence was increasing differences in the efficiency of...