. . . I am a social scientist and ultimately believe that accurate understanding needs to be grounded in empirical reality. In 25 years of research on a variety of public policy issues, I have never seen so much misinformation as in the debate on Mexican immigration during 2006. Thanks to the media and political entrepreneurs, Mexican immigrants are routinely portrayed as a tidal wave of human beings fleeing an impoverished, disorganized nation who are desperate to settle in the United States, where they will overwhelm our culture, displace our language, mooch our social services, and undermine our national security.

This profile, however, bears no discernible relationship to the reality that I know as a social scientist. Since 1982 I have co-directed a large data-gathering effort known as the Mexican Migration Project. My collaborators and I have conducted representative surveys in communities all over Mexico and the United States, and over the years, we have surveyed 20,000 households and 120,000 individuals to gather detailed information from U.S. migrants about their experiences crossing the border, living in the United States, and returning to Mexico. My understanding of Mexican immigration rests on these data, and if anyone thinks I’ve got it all wrong, they are free to download the data, analyze it, and see for themselves. . . .

To Americans who fear cultural displacement, I say look at what’s happening south of the border. Cultural influences travel in both directions and in an integrated economy they are inevitable. Given the global hegemony of the United States, however, the cultural effects are asymmetric. We influence Mexican culture and society far more than they affect U.S. culture and society. Within Mexico, Wal-Mart, McDonald’s, Toys ‘R Us, and 7-11 are increasingly displacing Mexican outlets. Even Taco Bell is making inroads, and American cultural traditions such as Halloween and Santa Claus now compete with Mexican celebrations such as Day of the Dead and Three Kings Day.

Linguistically, English-speakers certainly have nothing to fear. English is increasingly spoken in Mexico and is viewed as essential for social and economic advancement. Even the smallest towns and cities in Mexico have bustling English language academies, and English has become a core part of the Spanish spoken by most Mexicans. Within the United States, in contrast, few Anglo-Americans speak Spanish and although it may be widely spoken among new immigrants, there is a rapid shift to English over time. Few of children of immigrants use Spanish rather than English and virtually none of their grandchildren can speak it at all. . . .