A review of four quasi-experiments on family planning incentives in three Asian nations is presented, and a multi-national comparative field experiment on family planning incentives is proposed. Experiments include: (1) The Ernakulam vasectomy campaigns, (2) Indian Tea Estates retirement bond incentive program, (3) Taiwan educational bond experiment, and (4) Retirement bond incentive in Malaysia. Each of the four programs rates highly as a field test and as a demonstration of alternative incentive policies. The multi-national experiment recommended would have as its characteristics: (1) the clinic-shed as the experimental unit, (2) a population of five to seven thousand in each clinic-shed, and (3) assignation in each nation of the study five clinic-sheds to control. A discussion of family planning, with implications for incentive experiments in Indonesia, Iran, Korea, the Phillippines, and Thailand, is included. (Author/CK)