Tuesday, February 21, 2012

Why Did Jews Become More Urban?

Steven Landsburg (h/t Ritholtz):
So, what’s different about the Jews? First, Botticini and Eckstein explain why other groups didn’t leave the land. The temptation was certainly there: Skilled urban jobs have always paid better than farming, and that’s been true since the time of Christ. But those jobs require literacy, which requires education—and for hundreds of years, education was so expensive that it proved a poor investment despite those higher wages. (Botticini and Eckstein have data on ancient teachers’ salaries to back this up.) So, rational economic calculus dictated that pretty much everyone should have stayed on the farms.
But the Jews (like everyone else) were beholden not just to economic rationalism, but also to the dictates of their religion. And the Jewish religion, unique among religions of the early Middle Ages, imposed an obligation to be literate. To be a good Jew you had to read the Torah four times a week at services: twice on the Sabbath, and once every Monday and Thursday morning. And to be a good Jewish parent you had to educate your children so that they could do the same.
The literacy obligation had two effects. First, it meant that Jews were uniquely qualified to enter higher-paying urban occupations. Of course, anyone else who wanted to could have gone to school and become a moneylender, but school was so expensive that it made no sense. Jews, who had to go to school for religious reasons, naturally sought to earn at least some return on their investment. Only many centuries later did education start to make sense economically, and by then the Jews had become well established in banking, trade, and so forth.
The second effect of the literacy obligation was to drive a lot of Jews away from their religion. Botticini and Eckstein admit that they have little direct evidence for this conclusion, but there’s a lot of indirect evidence. First, it makes sense: People do tend to run away from expensive obligations. Second, we can look at population trends: While the world population increased from 50 million in the sixth century to 285 million in the 18th, the population of Jews remained almost fixed at just a little over a million.
It is an interesting theory.  I don't really have any explanation for the statistics myself.

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