Multinational firms innovation and productivity This book gets to the root of how and why multinational firms differ in the cross border creation transfer and diffusion of technology and provides fresh evidence on the effects that these differences have on productivity and innovation in the economic systems in which they are active pt. 1. The changing role of multinational firms in innovation pt. 2. How firms differ in innovation productivity and internationalism pt. 3. Firm heterogeneity multinationals and spillovers