Answer:
Based on Adam Smith LAISSEZ FAIRE approach , EFFICIENCY argument .
Explanation:
As per his this approach , government intervention is not only unecessary , but distortionary .
However , protection for a long time was likely to make such economies incompetitive , inefficient and hence Free unintervented markets have been percieved to be best solutions to make them efficient .
Eg : India had adopted state regulated model in 1950-1990 , but structurally transformed in 1991 through New Economic Policy - Liberalisation , Privatisation , Globalisation. This turning point of Indian Economy makes evident the importance of free exchange markets