The phrase "powerful incentive" means something that strongly motivates or persuades someone to take a particular action.
Sentences with «powerful incentive»
A carbon - tax would offer a more effective way to reduce emissions and provide powerful incentives for the development of new, climate - friendly technologies. (green.blogs.nytimes.com)
Place the child in a world of his own and you take from him the most powerful incentives to growth and achievement. (soundout.org)
That's a very powerful incentive for teachers to engage in meaningful and purposeful professional development. (edutopia.org)