@techreport{NBERw9419, title = "Opitmal Interest-Rate Rules: I. General Theory", author = "Marc P. Giannoni and Michael Woodford", institution = "National Bureau of Economic Research", type = "Working Paper", series = "Working Paper Series", number = "9419", year = "2003", month = "January", URL = "http://www.nber.org/papers/w9419", }