Study: Increasing Wages at Wal-Mart Would Barely Affect Shoppers - Working In These Times
And you can remain competitive, Walmart isn't so successful due to low wages, it is due to economies of scale, which further allows it to suppress wages for it's own employees and suppliers.
Second, American workers need to improve their work ethic. One of the reasons that Wal-Mart can get away w/paying its employees such low wages is that its employees in the US simply work too hard for that level of pay. If low-skilled workers just all got lazier, in general, they would be in a better position to negotiate for higher pay.
AUSTAN GOOLSBEE: I think the world vests too much power, certainly in the president, probably in Washington in general for its influence on the economy, because most all of the economy has nothing to do with the government.
The ones doing little or nothing are the smart ones and should serve as role models for the rest of the employees; after all, they prove that it isn't necessary to do much work to stay employed.