This paper is a comment on Concentration in Internet Access and Entrepreneurial Truncation of Innovation by Shane Greenstein which can be found at: "http://ssrn.com/abstract=2206875" http://ssrn.com/abstract=2206875

We examine whether there is a tradeoff between employing internal (firm) resources and purchased external (local) resources in process innovation. We draw on a rich data set of Internet investments by 86,879 U.S. establishments to examine decisions to invest in advanced Internet technology. We...