https://github.com/braddelong/public-files/blob/master/econ-210a-lecture-3a.pptx
Commercial Revolutions?
Jeremiah E. Dittmar (2011): Information Technology and Economic Change: The Impact of the Printing Press http://qje.oxfordjournals.org/content/126/3/1133.abstract
J. Bradford DeLong and Andrei Shleifer (1993): Princes and Merchants: European City Growth before the Industrial Revolution http://www.jstor.org/stable/725804
Daron Acemoglu, Simon Johnson, and James Robinson (2005): The Rise of Europe: Atlantic Trade, Institutional Change, and Economic Growth http://www.jstor.org/stable/4132729