TODAY'S IMMIGRATION ROUNDUP: Econ Log looks at two dimensions of the underground economy. One dimension is the provision of domestic services to rich working moms, the effect Mother Jones may or may not have complained about. The other is the induced innovation problem, wherein part of the underground economy is technologically backwards account the ready availability of labor that is cheap relative to capital. Mr Kling takes a page out of Gary Becker's book, asking about the effect of illegal immigration on the labor force participation of women.
Max at Common Sense and Wonder has some related cultural observations.