Business involves the legal production, purchase, and sale of goods and services to earn a profit. It aims to create utility and fulfill societal needs. Key business functions include planning, production, purchasing raw materials, sales, insurance, market research, grading/standardization, advertising, and publicity. Businesses are economically and socially important by properly utilizing resources, encouraging savings and development, supplying goods/services, creating jobs, and improving standards of living. While early civilizations engaged in business for livelihood, it differs from an occupation in that special training/knowledge and membership in a professional organization are not required for business. The main objective of business is earning money/profit, unlike occupations which aim to provide services. Therefore, business