That's what happens when you let the gov't write laws about economics. For example, the standard applied in "permanent labor certification" is absolutely hilarious; the business has to prove that: "there are no qualified U.S. workers able, willing, qualified and available to accept the job at the prevailing wage for that occupation in the area of intended employment and that employment of the alien will not adversely affect the wages and working conditions of similarly employed U.S. workers."