As the article notes:
“The extraordinary Mexican migration that delivered millions of illegal immigrants to the United States over the past 30 years has sputtered to a trickle, and research points to a surprising cause: unheralded changes in Mexico that have made staying home more attractive.
A growing body of evidence suggests that a mix of developments — expanding economic and educational opportunities, rising border crime and shrinking families — are suppressing illegal traffic as much as economic slowdowns or immigrant crackdowns in the United States.
Douglas S. Massey, co-director of the Mexican Migration Project at Princeton, an extensive, long-term survey in Mexican emigration hubs, said his research showed that interest in heading to the United States for the first time had fallen to its lowest level since at least the 1950s. “No one wants to hear it, but the flow has already stopped,” Mr. Massey said, referring to illegal traffic. “For the first time in 60 years, the net traffic has gone to zero and is probably a little bit negative.”
The decline in illegal immigration, from a country responsible for roughly 6 of every 10 illegal immigrants in the United States, is stark. The Mexican census recently discovered four million more people in Mexico than had been projected, which officials attributed to a sharp decline in emigration.
American census figures analyzed by the nonpartisan Pew Hispanic Center also show that the illegal Mexican population in the United States has shrunk and that fewer than 100,000 illegal border-crossers and visa-violators from Mexico settled in the United States in 2010, down from about 525,000 annually from 2000 to 2004. Although some advocates for more limited immigration argue that the Pew studies offer estimates that do not include short-term migrants, most experts agree that far fewer illegal immigrants have been arriving in recent years.
The question is why. Experts and American politicians from both parties have generally looked inward, arguing about the success or failure of the buildup of border enforcement and tougher laws limiting illegal immigrants’ rights — like those recently passed in Alabama and Arizona. Deportations have reached record highs as total border apprehensions and apprehensions of Mexicans have fallen by more than 70 percent since 2000.
But Mexican immigration has always been defined by both the push (from Mexico) and the pull (of the United States). The decision to leave home involves a comparison, a wrenching cost-benefit analysis, and just as a Mexican baby boom and economic crises kicked off the emigration waves in the 1980s and ’90s, research now shows that the easing of demographic and economic pressures is helping keep departures in check.
In simple terms, Mexican families are smaller than they had once been. The pool of likely migrants is shrinking. Despite the dominance of the Roman Catholic Church in Mexico, birth control efforts have pushed down the fertility rate to about 2 children per woman from 6.8 in 1970, according to government figures. So while Mexico added about one million new potential job seekers annually in the 1990s, since 2007 that figure has fallen to an average of 800,000, according to government birth records. By 2030, it is expected to drop to 300,000.”
It will be interesting to see the short and middle-term impact of having more jobseekers in Mexico, and far fewer immigrants in the US, especially in the economic sectors where they are traditionally heavily represented.