@inbook{NBERc1215,
 Crossref = "NBERminc69-1",
 title = "Data Errors and Forecasting Accuracy ",
 author = "Rosanne Cole",
 BookTitle = "Economic Forecasts and Expectations: Analysis of Forecasting Behavior and Performance",
 Publisher = "NBER",
 pages = "47-82",
 year = "1969",
 URL = "http://www.nber.org/chapters/c1215",
}
@book{NBERminc69-1,
 title = "Economic Forecasts and Expectations: Analysis of Forecasting Behavior and Performance",
 author = "Jacob A. Mincer",
 institution = "National Bureau of Economic Research",
 type = "Book",
 publisher = "NBER",
 year = "1969",
 URL = "http://www.nber.org/books/minc69-1",
}