Worldwide, extreme poverty is often concentrated in spaces where people and property are not safe enough to sustain effective markets, and where development assistance is dangerous - and might even induce violence. Expanding governance by coercively taking control of territory may enable markets...

The decline in the physical stature of the American population for more than a generation beginning with the birth cohorts of the early 1830s was brought about by a diminution in nutritional intake in spite of robust growth in average incomes. This occurred at the onset of modern economic growth...

According to conventional income measures, nineteenth century American and British industrial workers were two to four times as wealthy as poor people in developing countries today. Surprisingly, however, today's poor are less hungry than yesterday's wealthy industrial workers. I estimate the...