Peter Dixon and Maureen Rimmer of the CATO Institute have a study promoting the supposed economic benefits of comprehensive immigration reform aka amnesty ("Restriction or Legalization? Measuring the Economic Benefits of Immigration Reform", freetrade.org/pubs/pas/tpa-040es.html). As with other "economic" studies, theirs isn't really based in economics in that they're ignoring all the costs of what they promote: A policy that reduces the number of low-skilled immigrant workers by 28.6 percent compared to projected levels would reduce U.S. household welfare by about 0.5 percent, or $80 billion...