@techreport{NBERw2432,
 title = "The Equilibrium and Optimal Timing of Price Changes",
 author = "Laurence Ball and David Romer",
 institution = "National Bureau of Economic Research",
 type = "Working Paper",
 series = "Working Paper Series",
 number = "2432",
 year = "1987",
 month = "November",
 URL = "http://www.nber.org/papers/w2432",
 abstract = {This paper was an accidental re-issue of <a href="http://www.nber.org/papers/w2412">w2412</a>},
}