Gerbrands, P.W.L.

innovation market level innovativeness product policy market structure industry innovation performance knowledge research profit product life cycle structure performance competition dutch firm size model development company market power value supplier result firm level innovation theory network co-operation variable technology hypothesis r &d intensity literature schumpeterian activity digit opportunity process survey theory source sector knowledge protection competition policy development activities core model paper correlation advantage protection production turnover analysis production processes patent concentration time equivalents data source relationship netherland support number power mover advantages value chain inter-firm co-operation cycle combination debresson share behaviour market structure variables dutch innovation survey measure chain entry finding variety production chain