“…Beyond publicly funded research and extension, knowledge on farming practices is produced by individual farmers, collaboratives of many varieties, farmer professional organizations, non-profit organizations, farm input suppliers, and various organs of local government (Kloppenburg, 1991). While the linear model of diffusion has been refuted in the innovation literature for decades (Rosenberg, 1982), and while the public research represents approximately half of all agricultural research spending, it is still the dominant mode informing research, extension, and agricultural policy (Wolf and Zilberman, 2001;Schimmelpfennig and Heisey, 2009). Public investments are particularly important in technical domains that are linked to non-commodified inputs: the study of processes that are governed by knowledge rather than material inputs, which are harder to commodify (e.g.…”