Dealing With Income Inequality

A little inequality is needed to spur economic growth. But too much inequality kills growth.

There is an equivalent of a Laffer curve for inequality, but the variable of interest is economic growth rather than tax revenue. We know that a society with perfect equality does not grow at the fastest possible rate. When everyone gets an equal share of income, people lose the incentive to try and get ahead of others. We also know that a society where one person has almost everything while everyone else struggles to survive — the most unequal distribution of income imaginable — will not grow at the fastest possible rate either. Thus, the growth-maximizing level of inequality must lie somewhere between these two extremes.

Our problem is that business is really resistant to efforts to reduce inequality like progressive income taxes and investments in developing people.