Sony(Ps3, PsP,Ps2) and Microsoft(Xbox360)
greed
Because Nintendo and SEGA are competing companies, it is assumed that Mario and Sonic should fight each other.
Well, you have to think that the console (PS1) and the game you are looking for are both by Competing companies. Nintendo created Mario, so they own all rights to it. I highly doubt they will ever have them on Playstation.
coke and pepsi
it is an arrangement, where two or more companies help each other to market their products. However, the products have to be complementary and not competing against each other.
They are probably rivals because both are the best search engines/companies. They are 'competing' against each other for fans and fame. I don't think it's anything personal against the creators.
He was competing against David Archuleta. And David Archuleta SO should of won!!!
Probably Insurance companies because they're always competing, other companies that advertise a lot are Car companies, and Cell phone carriers, again, because they're always competing.
interlocking directorates :)
Nintendo is one company. therefore, there is one.
Try your best
Competitor rivalry: Companies in the same industry competing for market share. Sporting rivalry: Teams or individuals competing against each other in sports. Sibling rivalry: Siblings vying for attention or parental approval. Academic rivalry: Students competing for top grades or academic recognition. Political rivalry: Different political parties or factions competing for power or influence.