//-->
Technology diffusion and the spatial distribution of wages in the US
Ciccone, Antonio, (2000)
The transition to a new economy following the Second Industrial Revolution
Atkeson, Andrew, (2000)
Productivity, technology and economic growth
Ark, Bart van, (2000)
Agricultural diversity : do we have the resources to meet future needs?
Knudson, Mary K., (1999)
Property right protection of reproducible genetic material
Hansen, LeRoy T., (1996)
Whose price wins : institutional and technical change in agriculture
Larson, Bruce A., (1991)