Template-type: ReDIF-Paper 1.0 Author-Name: Kevin Hjortshøj O’Rourke Author-Workplace-Name: All Souls Collee, Oxford University Title: Economic Impossibilities For Our Granchildren? Abstract: This is a revised version of the Keynes Lecture, presented at the British Academy on October 7, 2015. I am extremely grateful to Mary Morgan who chaired that event, and to Roger Backhouse, Patrick O’Brien, Richard Portes, Morten Ravn, Hélène Rey, and Donald Winch, who attended the lecture and made many useful suggestions and comments. I particularly want to thank Morgan Kelly and Alan Taylor for many conversations on the subject of secular stagnation; and to Bob Allen, Charlie Bean, Paul Beaudry, Agustín Bénétrix, Steve Broadberry, Nick Crafts, Brad DeLong, Rui Esteves, Ron Findlay, Mike Gavin, Richard Grossman, Leander Heldring, Svend Hylleberg, Philip Lane, Jacob Madsen, Perry Mehrling, Gian Maria Milesi-Ferretti, Cormac Ó Gráda, Thomas Piketty, Filipa Sa, Claus Vastrup, Karl Whelan, Jeff Williamson, and Nikolaus Wolf, for many useful comments, help with data, and advice. The usual disclaimer applies. X-Classification-JEL: X-Keywords: Length: 39 pages Creation-Date: 2015-12-08 Number: _139 File-URL: http://www.economics.ox.ac.uk/materials/papers/14307/econ-and-history-139.pdf File-Format: application/pdf Handle: RePEc:nuf:esohwp:_139