6Aghion P. , Howitt P. , Mayer-Foulkes D. The effect of financial development on convergence:theory and evidence [ J ]. Quarterly Journal of Economics, 2005, (120) : 173 - 222.
7Canepa A. , Stoneman P. Financial constraints to innovation in the UK : Evidence from CIS2 and CIS3 [ J ]. Oxford Economic Papers, 2008, (60) :711 - 730.
10Jefferson G. , Hu A. G. Z. , Qian J. R&D and technology transfer:firm level evidence from Chinese industry[ J]. Review of Econom- ics and Statistics,2005, (4) :780- 786.
