The Immigration Policy Center has released a report called "Economic Progress via Legalization: Lessons from the Last Legalization Program" [1] which points out that the 1986 amnesty helped those amnestied improve their situations. However, there's little in their report that's remarkable and they don't take into account the balance between the benefits and costs of the amnesty; everything's...
... offers a mini-study (written by Walter Ewing) called "Fuzzy Math: The Anti-Immigration Arguments of NumbersUSA Don’t Add Up" (http://immigrationpolicy.org/index.php?content=fc060209):
According to the anti-immigration group NumbersUSA, immigration to the United States is all about arithmetic: immigration increases the U.S. population, and more people presumably means more pollution, more urban...
... in the news. Thus it is that Walter Ewing of the Immigration Policy Center has to rush to defend illegal aliens taking stimulus jobs from U.S. citizens in the blog post "CIS' Dubious Data Deflects Rational Immigration Debate" (immigrationimpact.com/2009/03/09/cis-data-immigration-myth-stimulus-bill). That references the claims from the Center for Immigration Studies, which are similar to those...