Fast food seems to really prefer warm colors (red, orange and yellow) - think, McDonalds, Wendy's, Subway, KFC, Dominos, Burger King, Jack in the Box, Sonic etc. This correlates with the post, where red = energy + creating urgency while yellow = optimistic and youthful.
Fast food: making customers energized and in a rush since the color red.
Alcohol for some reason really loves pure black or pure white (I'm thinking to tv commercials with black backgrounds and the slow-motion alcohol pours). Again, great correlation here in the post where black = luxury/power.
But thinking to my own personal experience with design, Leo's quote stands out to me:
"Despite all the studies, generalizations are extremely hard to make. Whatever change you make, treat it first as a hypothesis, and see an the actual experiment what works for you."
It seems to me like a blue/orange combo has become one of the most-used color schemes for startups (correlation to movie posters? http://www.slashfilm.com/orangeblue-contrast-in-movie-poster...)