**Case illustration:**

All four case firms are found to support KM activities of knowledge management. However, different firms may have different incentive systems. For example, PRA has an incentive mechanism called "star system." Once employees have particular achievements in KM-related activities, they would be credited with a certain number of stars, which later becomes one of the major criteria for salary raises and promotion. A2HC designed an evaluation form with a checklist to check how knowledge sharing and exchange is implemented when people change with new positions.
