From The New York Times:
Some academics argue that Card and Krueger’s conclusion is wrong, and that one relatively small-scale study does not prove anything. Among them is David Neumark of the University of California, Irvine, who described the study as “flawed,” questioning how the data was collected and whether it made sense to extrapolate lessons about the whole economy from a relatively small number of KFCs, Burger Kings and the like. Other studies he has conducted have shown the expected, conventional-wisdom result: Wage increases mean less employment.

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