共 10 条
[5]
Innovation and spillovers in regions: Evidence from European patent data[J] . Laura Bottazzi,Giovanni Peri.  European Economic Review . 2002 (4)
[6]
Paul Krugman’s Geographical Economics, Industrial Clustering and the British Motor Sport Industry[J] . Steven Pinch,Nick Henry.  Regional Studies . 1999 (9)
[8]
Proximity and Innovation: A Critical Assessment[J] . Ron Boschma.  Regional Studies . 2005 (1)
[9]
An introduction to efficiency and productivity analysis. Coelli T, Prasada Rao DS, Battese GE. Boston . 1998