member firm of big 4 or big 4 firm itself?

[sheikh_sb]

i have seen many firms in other countries that are named as pwc inc(not named as member of pwc gloabal),but in pak they always use the name a.f.fergusons then at sumplace v c the sentence a member firm of the pwc.
wht i wana ask is that being a member firm of pwc or pwc itsself are the two diffrent things?
and if it is then having experience from a pwc firm or a firm having affiliated wid pwc makes differnce on ur worth or not,