共 9 条
[7]
Cash holdings and R&D smoothing[J] . James R. Brown,Bruce C. Petersen.Journal of Corporate Finance . 2010 (3)
[8]
Do R&D Subsidies Stimulate or Displace Private R&D? Evidence from Israel[J] . SaulLach.The Journal of Industrial Economics . 2003 (4)
[9]
Is public R&D a complement or substitute for private R&D? A review of the econometric evidence[J] . Paul A. David,Bronwyn H. Hall,Andrew A. Toole.Research Policy . 2000 (4)