Emigration and the Standard of Living: The Seventeenth Century Chesapeake
研究了十七世纪英格兰移民到切萨皮克地区及其后代的生活水平，发现他们在物质生活上不如英格兰，但食物充足、人人有工作，穷人有机会获得土地和经济独立。
Seventeenth-century English immigrants to the Chesapeake and their children experienced a trade-off. They died early and raised few children who survived to adulthood, most worked harder than in England at more boring tasks, and, except for food, they had a material standard of living inferior to what the homeland could offer at equivalent levels of wealth; but people ate well, there was work for all, and until late in the century the poor who lived long enough found opportunities not available in England to exercise control of their lives—opportunities to acquire land and the economic independence and community standing that it brought.