The document discusses the economics of the US carbonated soft drink industry from 1970 to 2004, focusing on how Coca-Cola and PepsiCo came to dominate the market through establishing production and distribution networks as well as engaging in competitive marketing campaigns. It analyzes the strategies employed by Coca-Cola and PepsiCo that allowed them to gain and maintain market share over smaller brands, such as expanding their product portfolios and establishing international presences.