Japanese customers may get suspicious if prices fall below a certain point

“Asia University economist Shintaro Mogi, ... contradicts Yoshinoya surveys which suggest that if you lower prices beyond a certain point, customers get suspicious.”

Source: Yoshinoya's dilemma: Whether to lower prices or not
2nd January 2010, japantoday.com
http://www.japantoday.com/category/kuchikomi/view/yoshinoyas-dilemma-whether-to-lower-prices-or-not