Smith 's distinction between productive and unproductive labour corresponds to Sraffa 's ( 1960 ) distinction of basic and non-basic goods , as basic goods re-enter the productive process , .
Non-basic goods are destined for consumption .
Smith 's distinction between productive and unproductive labour corresponds to Sraffa 's ( 1960 ) distinction of basic and non-basic goods , as basic goods re-enter the productive process , whereas non-basic goods are destined for consumption .