(thesis help) Why are fast food chains successful?

this is my current topic but i am planning to narrow it down.. can you also help me choose? =) -competition between fast food chains -impact of advertising to fast food success -shifting of fast foods to local tastes -success factors of fast foods -location -advertising -shifting to... show more this is my current topic but i am planning to narrow it down.. can you also help me choose? =)

-competition between fast food chains
-impact of advertising to fast food success
-shifting of fast foods to local tastes
-success factors of fast foods
-location
-advertising
-shifting to local taste
-menu

do you know any resources in the net? i'm really having a hard time researching.

tnx a lot!!
5 answers 5