pull-ahead effect
n.— «Exceptionally strong sales in any one month can weigh on near-term future demand for mass-market brands like Chevrolet, Dodge and Ford, commonly referred to as the “pull-ahead” or “payback” effect, analysts said.» —“Sales slow for Detroit’s Big Three” in Detroit, Mich. CNN/Money Sept. 30, 2005. (source: Double-Tongued Dictionary)