Nigeria

(1) The State shall, within the context of the ideals and objectives for which provisions are made in this Constitution –
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(b) control the national economy in such manner as to secure the maximum welfare, freedom and happiness of every citizen on the basis of social justice and equality of status and opportunity;
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(2) The State shall direct its policy towards ensuring:
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(b) that the material resources of the nation are harnessed and distributed as best as possible to serve the common good;
(c) that the economic system is not operated in such a manner as to permit the concentration of wealth or the means of production and exchange in the hands of few individuals or of a group; and
(d) that suitable and adequate shelter, right to food and food security, reasonable national minimum living wage, old age care and pensions, and unemployment, sick benefits and welfare of the disabled are provided for all citizens.
… (Sec. 16)