Introduction / Petra Moser
The roots of agricultural innovation : patent evidence of knowledge spillovers / Matthew Clancy, Paul Hesiey, Yongjie Ji, GianCarlo Moschini
Comment / Alberto Galasso
Quantifying heterogeneous returns to genetic selection : evidence from Wisconsin dairies / Jared Hutchins, Brent Hueth, Guilherme Rosa
Yield performance of corn under heat stress : a comparison of hybrid and open-pollinated seeds during a period of technological transformation, 1933-55 / Keith Meyers, Paul W. Rhode
Comment / Michael J. Roberts
Local effects of land grant colleges on agricultural innovation and output / Michael J. Andres
Comment / Bhaven N. Sampat
Academic engagement, commercialization, and scholarship : empirical evidence from agricultural and life scientists at US land grant universities / Bradford Barham, Jeremy Foltz, Ana Paula Melo
Venture capital and the transformation of private R&D for agriculture / Gregory D. Graff, Felipe de Fueiredo Silva, David Zilberman
Comment / Michael Ewens.