Here is how the Amish do it...
The main factor behind the growth is simple: Big families and a high “retention rate.”
"A new study estimates the number of Amish has increased nearly 10 percent in the past two years alone, to a total population of 249,000, compared with about 227,000 in 2008."
"They are sort of challenging some of the mainstream assumptions about progress and how you achieve the good life and happiness," said Elizabethtown professor Don Kraybill, the study's director. "They're not merely surviving; they're thriving, and growing at this very rapid rate."
The study focused on all Amish groups that use horse-and-buggy transportation, so it excluded such automobile-driving groups as the Beachy Amish and Mennonites.
http://news.yahoo.com/s/ap/20100728/...thriving_amish
http://blogs.wsj.com/economics/2010/...pulation-boom/