." ▁ ▁Fried man ▁also ▁cont ended ▁that ▁where ▁social ism ▁links ▁econom ics ▁with ▁politics , ▁econom ics ▁cannot ▁act ▁as ▁a ▁check ▁on ▁political ▁power ▁within ▁a ▁social ist ▁society , ▁as ▁it ▁can ▁in ▁a ▁capital ist ▁society . ▁ ▁Mac ph erson ▁counter ed ▁that ▁there ▁is ▁little ▁evidence ▁that ▁econom ics ▁does ▁check ▁political ▁power . ▁In ▁fact , ▁in ▁many ▁cases ▁political ▁power ▁becomes ▁sub serv ient ▁to ▁economic ▁power ▁in ▁the ▁capital ist ▁system . ▁ ▁In ▁this ▁regard , ▁social ism ▁allows ▁a ▁better ▁check ▁on ▁economic ▁power ▁toward ▁political ▁power ▁than ▁the ▁con verse ▁under ▁capital ism . ▁ ▁Mac ph erson ▁acc uses ▁Fried man ▁of ▁supp lant ing ▁a ▁Commun ist ▁society ▁for ▁a ▁Social ist ▁one ; ▁at ▁the ▁very ▁least ▁Fried man ▁does ▁not ▁differenti ate ▁between ▁the ▁two . ▁ ▁Mil ton ▁Fried man ▁believed ▁that ▁if ▁most ▁of ▁the ▁regul atory ▁and ▁w elf are ▁activities ▁of ▁Western ▁states ▁were ▁dis cont in ued , ▁freedom ▁would ▁be ▁advanced . ▁ ▁This ▁may ▁be ▁true ▁on ▁a ▁negative ▁conception ▁of ▁freedom , ▁but ▁not ▁on ▁Mac ph erson ' s ▁positive ▁conception . ▁ ▁According ▁to ▁Mac ph erson , ▁Fried man ▁does ▁not ▁include ▁any ▁" eth ical ▁claims ▁of ▁equality " ▁into ▁his ▁demand ▁for ▁what ▁amounts ▁to ▁freedom ▁of ▁mark ets . ▁Mac ph erson ▁arg ues ▁that ▁most ▁of ▁the ▁" class ical ▁liber als " ▁of ▁previous ▁centuries , ▁which ▁Fried man ▁claims