“…Consequently, consumers are less likely to recognize a bigger price that ends with 9 and less likely to notice a price increase when the new price ends with 9. For price decreases, however, 9-endings do not seem to play a 1 See, for example, Rotemberg (1982Rotemberg ( , 1987Rotemberg ( , 2005Rotemberg ( , 2010, Mankiw (1985), Carlton (1986), Tsiddon (1992, 1996), Konieczny (1993), Warner and Barsky (1995), Danziger (1999), Dutta, et al (2002), Ball and Romer (2003), Levy and Young (2004), Bils and Klenow (2004), Zbaracki, et al (2004), Steinsson (2008, 2009), Midrigan (2008, 2010), Klenow and Kryvtsov (2008), Levy, et al (2010), Midrigan (2011), and Eichenbaum, et al (2011). For recent surveys, see Willis (2003), Wolman (2007), and Klenow and Malin (2011).…”