Yield management aims to maximize profit from hotel room sales and services. It originated in the airline industry where different passengers pay different fares. Yield management has been applied successfully in industries with perishable inventory like hotels. It uses demand forecasting to determine if room prices should increase or decrease and whether reservations should be accepted or rejected to maximize revenue. The key benefits of yield management include improved forecasting, pricing, identification of market segments, and coordination between hotel departments to improve profits.