Mr.Powell says financial incentives like these can get employees to do something once or twice.

VOA: special.2011.02.28

"In Latin America where I am from, football is something that is watched on weekends and families get together to do so and kids see it from an early age."

VOA: standard.2010.06.15

"The critical part at the end of whatever the level of study you are going to do is to get yourself involved in something that puts you into a laboratory."

VOA: standard.2010.05.10