Business involves producing or selling goods and services for profit. Without a business structure, the owner is personally responsible for all business debts. A sole proprietorship is owned by one person, while a partnership has multiple owners who all assume unlimited liability. A corporation provides limited liability for owners and a separate legal entity, but is more complex to establish. Common forms of business organization include sole proprietorships, partnerships, corporations, cooperatives, franchises, and limited liability companies (LLCs).