High and Declining Prices Signal Product Quality

High and declining prices signal a high-quality product. High prices are the efficient means of signaling, because the consequent loss of sales volume is most damaging for lower-cost, lower-quality products. As time passes and the number of informed consumers increases, the signaling distortion lessens, resulting in a declining price profile. The prediction of high and declining prices is robust across a variety of dynamic models and is consistent with recent empirical findings.