“The inverse relationship between quantity demanded and price is the core proposition in economic science, which embodies the presupposition that human choice behavior is sufficiently relational to allow predictions to be made. Just as no physicist would claim that “water runs uphill,” no self-respecting economist would claim that increases in the minimum wage increase employment. Such a claim, if seriously advanced, becomes equivalent to a denial that there is even minimal scientific content in economics, and that, in consequence, economists can do nothing but write as advocates for ideological interests. Fortunately, only a handful of economists are willing to throw over the teachings of two centuries; we have not yet become a bevy of camp–following whores. “
That’s a favorite quote from James M. Buchanan. He wrote that in the 1990s in response to a Wall Street Journal interview in which the disemployment effect of minimum wage legislation was questioned.
The theoretical case that minimum wage laws adversely affect low-skilled workers is as sound as anything else in economics. The empirical evidence is also as sound as the empirical evidence for “dog bites man.” What makes the news is when “man bites dog.” That exception does not invalidate the general case that dogs bite men. Continue reading