公定価格
Price controls may also be used to assist poor citizens. Many countries have used this method of welfare support as it delivers cheap food to the poorest in urban areas without the need to assess people to give them financial aid. This often goes at the cost of the rural poor, who then earn less from what is often their only realistic or potential source of income: agriculture. Because in almost all countries the rural poor are poorer than the urban poor, cheap food policies through price controls often increase overall poverty.