當今琳琅滿目的降價促銷，不是每個人都能把握住每次的優惠，錯過優惠對消費者而言是普遍的事。消費者錯過較佳優惠後，再面對次佳優惠時，採取行動的可能性會降低，被稱為無為慣性。本研究主旨在探討極大化與滿足化的這兩種類型的消費者錯過優惠後，採取次佳優惠的可能性。我們用四個實驗驗證以下關係：當錯過較佳優惠，面臨次佳優惠時，滿足化者比極大化者的購買意願為高。此種型態僅發生在兩次優惠相對吸引力差距大時。當產品訊息以規範焦點呈現時，在促進框架訊息下，滿足化者比極大化者表現出的無為慣性程度較小；在預防框架訊息下，兩者的無為慣性程度無顯著差異。此干擾效果的產生，源自於消費者與規範訊息適配所導致預期後悔的減輕，亦即，訊息以促進框架呈現時，與之適配的滿足化者所產生的預期後悔較非適配的極大化者為輕，因而前者無為慣性程度會低於後者；訊息以預防框架呈現時，與之適配的極大化者因適配降低所產生的預期後悔，使得無為慣性程度降至與滿足化者相似。

In spite of numerous price-discount promotions every day, not every consumer is able to seal the best deal. It is common for people to overlook promotion events in daily life. The phenomenon that one is not likely to act upon the less attractive opportunity after bypassing the more attractive opportunity is called inaction inertia. This research aims to investigate how likely maximizers and satisifisers will act on the inferior promotion after missing the superior promotion. We use four experiments to test following relationship: First, maximizers show higher inaction inertia than satisficers do. Second, this phenomenon only happens when the difference in attractiveness between the missed and the current opportunity is large. Besides, regulatory focus theory can be applied to message framing. Under promotion message framing, satisfiers show weaker inaction inertia than maximizers. On the other hand, no difference in inaction inertia exists between maximizers and satisficers under prevention message framing. Moreover, we look at the process underlying the difference in inaction inertia between consumer type and regulatory-framed message. When there is a fit between consumer type and regulatory-framed message, it will lead to lower regret.

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