共 14 条
 
              [6]
            
             
            
                Adverse selection and financing of innovation: is there a need for R&D subsidies?[J] . Takalo,Tuomas,Tanayama,Tanja.Journal of Technology Transfer . 2010 (1)
              
              [7]
            
             
            
                How does the financial environment affect the stock market valuation of R&D spending?[J] . Journal of Financial Intermediation . 2005 (2)
              
              [8]
            
             
            
                Does the market value R&D investment by European firms? Evidence from a panel of manufacturing firms in France, Germany, and Italy[J] . Bronwyn H. Hall,Raffaele Oriani.International Journal of Industrial Organization . 2005 (5)
              
              [10]
            
             
            
                Decreasing Returns to Shareholders From R&D Spending in the Computer Industry[J] . Del A. Mank,Halvard E. Nystrom.Engineering Management Journal . 2001 (3)
              

