Why Deporting Undocumented Immigrants Could Slow Us Economy (Associated Press)

From the article: 

A paper issued last month by the National Bureau of Economic Research studied what happened in 1964 when the government cut the supply of seasonal Mexican farm workers entering the United States. By excluding the Mexicans, the move was supposed to create jobs for American farm workers and raise their wages.

But researchers Ethan Lewis of Dartmouth College and Michael Clemens and Hannah Postel of the Center for Global Development found that barring Mexican farm workers "failed to raise wages or substantially raise employment for domestic workers." Instead of hiring Americans, farms turned to machines to pick cotton and tomatoes and to tend to sugar beets.

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