This document discusses different types of retail institutions based on ownership, including independents, chains, franchises, leased departments, and vertical marketing systems. Independents make up 70% of retailers but only 3% of sales due to lack of scale and bargaining power. Chains account for 65% of US retail sales through centralized purchasing and advertising. Franchising involves contractual agreements where franchisees pay fees to use an established brand. Leased departments occupy space in stores and pay rent as a percentage of sales. Vertical marketing systems integrate independently owned businesses along the distribution channel.