The third source relating to localization economies is technological spillovers. One final advantage of this source is that clustering in specific fields leads to quicker diffusion of ideas or adoption of ideas. In order for production to be at its maximum and sell their products, firms require some sort of feasible access to capital markets. New forms of technology can create problems and involve risk; the clustering of firms creates an advantage to reduce the amount of uncertainty and complications involved with the use of new technology through information flow. The industry of capital flow and technology are concentrated within specific areas and therefore it is to the advantage of the firm to locate near these areas. This technological impact specifically in the communications field will provide and dismiss the barrier between firms in the same industry located further away as well as nearby which would lead to a greater concentration of information flow and economic production and activity. Furthermore, technological spillovers may be more beneficial to smaller cities in their growth than larger cities because of the existing informational networks in larger cities that already helped them to form and grow.