Taxing height and utilitarianism
The blogsphere has been a flutter about “the optimal taxation of tall people” (here, here, here, here, here, and here).
The way I see it there are two debates going on here:
- Do we see it as fair to tax tall people/why not just tax income,
- Should we be using utilitarianism to figure this out.
Now Rauparaha covered off the first issue back in March last year here. Many people are saying “why target height when you can target income.
One answer is that you can’t change your height, but you can fiddle your income. A slightly better answer (although the other one is fine) is to note that there are two ways of getting income, luck and effort. Generally policy makers think it is good to redistribute luck but they also want to avoid penalising effort (that is why we talk about keeping effective marginal tax rates down). What height you get is the result of genetic luck at birth. Assuming that height conveys an advantage to earning income we can tax height directly, thereby redistributing and not influencing individuals incentives to work. This is the argument Rauparaha made. [Note: I am short but Rauparaha is tall 🙂 ].
Whether this is fair or not is a moral question to be sure. However, there is definitely an argument for taxing fixed variables related to income rather than taxing income itself.