John Cochrane writes,
Thus, you can’t simultaneously be for higher minimum wages and for wage subsidies. That is cognitive dissonance. Or, inconsistency. Or wishful thinking. And very common.
He is commenting on a post from Tyler Cowen. My thoughts:
1. Greg Mankiw likes to point out that a higher minimum wage is like a combination of a subsidy to labor supply and a tax on labor demand. A wage subsidy does away with the tax on labor demand, which is why Mankiw prefers it. An occupational licensing fee strikes me as a tax on labor supply.
If labor demand is inelastic, that means that large changes in labor costs are accompanied by small changes in workers employed. If labor demand is elastic, that means that small changes in labor costs prompt large changes in labor demand.
If labor demand is inelastic, then a higher minimum wage will raise labor income. Think of employers just absorbing the cost (although that is only one possible reason for inelastic labor demand). But if labor demand is inelastic, then a wage subsidy will not raise worker income. Think of employers as just pocketing the subsidy (again, assuming that this is the reason by which labor demand is inelastic).
If labor demand is elastic (the more likely case, in my view), then a wage subsidy will work to increase labor income, while a higher minimum wage will fail.
2. Cochrane’s point is that economists sometimes argue for one policy that works with high elasticity of labor demand and another policy that works with low elasticity of labor demand, without apologizing for the inconsistency. An example that I have used is arguing for a higher minimum wage (which works with low elasticity of labor demand) and for more immigration (which will depress wages if there is low elasticity of labor demand). Tyler uses that example as well.
3. Tyler’s point is that if you think that labor demand is inelastic, then occupational licensing requirements, acting as a tax on labor supply, will not affect employment very much. Again, I am inclined to think that labor demand is elastic, so I think that occupational licensing requirements do adversely affect employment.
I think that on the immigration issue and the occupational licensing issue, economists of all stripes prefer to implicitly make the elastic-demand assumption. On the minimum-wage issue, economists on the left prefer to implicitly make the inelastic-demand assumption. On the immigration issue, some conservative economists prefer to implicitly make the inelastic-demand assumption. I think that libertarian economists tend to implicitly make the elastic-demand assumption in all cases. So at least we are consistent.