An income-contingent loan scheme can at best replicate the allocation brought about by a scholarship scheme financed by a graduate tax, and only on condition that there is nothing to stop the policy maker from using tuition fees as if they were taxes. If that is not possible, even the best loan...

The paper studies non-linear income taxation and linear commodity taxation in a household production context with households differentiated by market and non-market ability. In such a setting, there is an efficiency motive for re-distribution which is independent from the usual equity motive,...