A dynamic explanation of the willingness to pay and willingness to accept disparity

"Evidence from laboratory experiments suggests that important disparities exist between willingness to pay (WTP) and compensation demanded for the same good. This study advances, and experimentally tests, a new explanation of the WTP/WTA disparity-a dynamic theory based on the presence of commitment costs. We find that the commitment cost theory combined with a simple behavioral anomaly is able to lend insights into the causes and severity of the WTA/WTP disparity. Further, we find that market experience attenuates the behavioral anomaly, consistent with the notion that no value disparity exists for agents with sufficient market experience"--National Bureau of Economic Research web site.