NECESSITY IS THE MOTHER OF INVENTION: INPUT SUPPLIES AND DIRECTED TECHNICAL CHANGE BY W. WALKER HANLON1
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David E. Weinstein | Dora L. Costa | Jonathan I. Dingel | A. Khandelwal | S. Naidu | R. Chahrour | T. Nicholas | A. Mahajan | D. Irwin | Jonathan Vogel | R. Findlay | M. Morin | Lucie Gadenne | Eric Hilt | C. Steinwender