Cola Wars!!
Stage 1 (1950-1970) saw Pepsi target African Americans and younger consumers while Coke focused overseas. Pepsi doubled US consumers while Coke assumed saturation.
Stage 2 (1970-1990) saw both diversify into food while their market shares fluctuated between 30-40%. They imitated each other's ads and perceived brand differences.
Stage 3 (1990-2006) challenges included flat demand, obesity links to CSDs, and bottlers' profit pressures. Both shifted to non-CSD drinks and smaller packaging. Coke relied more on international markets while Pepsi was more aggressive in the US non-CSD market.