@inbook{NBERc6571, Crossref = "NBERgold94-1", title = "The Origins of State Railroad Regulation: The Illinois Constitution of 1870", author = "Mark T. Kanazawa and Roger G. Noll", BookTitle = "The Regulated Economy: A Historical Approach to Political Economy", Publisher = "University of Chicago Press", pages = "13-54", year = "1994", month = "January", URL = "http://www.nber.org/chapters/c6571", } @book{NBERgold94-1, title = "The Regulated Economy: A Historical Approach to Political Economy", author = "Claudia Goldin and Gary D. Libecap", institution = "National Bureau of Economic Research", type = "Book", publisher = "University of Chicago Press", year = "1994", URL = "http://www.nber.org/books/gold94-1", }