Not everyone agrees that more high-tech visas, such as the H-1B, are needed to meet U.S.-based job needs. A Rutgers University professor believes it's more a matter of companies wanting to pay as little as possible when filling these positions, and he and others have issued a study that examines the effect of foreign workers on the labor market in the U.S. "It's Econ 101," said public policy professor Hal Salzman, a senior fellow at Rutgers' John J. Heldrich Center for Workforce Development. "The story keeps coming back to wages. They go elsewhere where the pay is better."

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