These two rationales for the welfare state, alleviating income inequality and alleviating economic insecurity, are closely related to a major principle of tax fairness, the ability-to-pay principle, according to which those with greater ability to pay a tax should pay more.
advance purchase restrictionn.
p. 253
Common techniques for price discrimination include the following:
• Advance purchase restrictions. Prices are lower for those who purchase well in advance (or in some cases for those who purchase at the last minute).
affordable housingn.
p. 319
Affordable housing is also frequently a problem, leading poor families to move often, disrupting school and work schedules.