This document discusses different types of business organizations in the United States. It notes that most businesses are sole proprietorships, which are privately owned and make up nearly three-quarters of US businesses, generating about 20% of total sales. Partnerships allow for shared opportunities and liabilities but can introduce complex relationship dynamics. Corporations have public ownership through shares of stock, a hierarchical structure, and limited liability for owners, making them effective for raising large sums of capital. Corporations also generate nearly three-quarters of all US sales.