http://blog.aflcio.org/2010/01/11/report-immigration-reform-would-boost-economy/"A new report shows that
comprehensive immigration reform would help American workers and the U.S. economy. Reform that offers a path to citizenship for currently unauthorized workers and enforces workers’ rights
would raise the “wage floor” for the entire U.S. economy and increase the total gross domestic product (GDP) by at least $1.5 trillion over the next decade, the report says."
"“Raising the Floor for American Workers,” by the Center for American Progress and the Immigration Policy Center, says
finding a pathway to citizenship for the millions of undocumented workers is a much better alternative in this economic crisis than expanding guest worker programs or mass deportation.The temporary worker program only generates an annual increase of 0.44 percent in the nation’s GDP or $792 billion over 10 years. It also leads to declining wages for newly legalized immigrant workers, the report says.
Mass deportation would reduce U.S. GDP by 1.46 percent annually or $2.6 trillion,
not including the actual cost of deportation, the report adds. Wages would rise for less-skilled native-born workers, while wages for higher-skilled natives would drop. The deportations would lead to widespread job loss as well."