Reading Gostick and Elton, NY Times bestsellers, I noticed two surveys with a simple correlation.
#1. A Wichita State University poll found only one in five workers has EVER been publicly praised at work. Less than half of employees have ever received personal thank-yous from their bosses.
#2. A Nierenberg Group survey asked working professionals what would make them reconsider staying at a job they planned to leave. Among the top three - better recognition for contributions.
Of course there are other things involved in the formula, but seems like it could pay to work recognitions into your normal routine.