To provide an appropriate incentive for teaching profession, the important questions are "how much should we pay?" and "which factors influence potential teachers' decision the most?" This research evaluates the factors that discourage and encourage potential teachers to join the profession in Cambodia and Laos by applying a discrete choice experiment to analysis teacher trainees' preferences for school location, classroom condition, non-teaching professions, and indirect monetary incentives. The result highlights reasons and a possibility of potential teachers to leave the educational system.