1.   But as China has embraced a market economy and streamlined its bloated bureaucracy, such political rewards have become far less common.

2.   He was forced to resign as chairman of the organizing committee when such rewards became an embarrassment.

3.   In financial terms, the rewards have become sizable.

4.   Rewards have become a fact of life in police work and are necessary, said Robert Louden, the director of the criminal justice center at John Jay College.