Since very ancient period, the world has been passing through various stages of socio-economic development. Today, the world's picture is the result of the implementation of various improvement processes and plans. The different processes of improvement in social and economic sectors, infact, are results of the implementation of various policies and planning schemes. As a matter of fact, there are considerable variations in different areas of the world as regard to overall socio-economic conditions. It is clear from the fact, that some areas are socially and economically much developed, while many others are lagging behind in the race of development.
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