Shand, RickKalirajan, Kaliappa2015-12-132015-12-130169-5150http://hdl.handle.net/1885/93171The focus of this paper is the process of adjustment of farm performance to disequilibrium with new technology over time, which has been a subject of speculation till now. It shows that, left to learn from their own experience, farmers will be slow to realise the full technical potential of a new technology. Drawing on theories of intra-firm diffusion, the hypotheses tested in this paper using data from India are: (1) initial overall farm performances are characterised by modest and widely varying technical and allocative efficiencies, and (2) over time, average efficiencies rise.Keywords: agricultural performance; agricultural technology; efficiency measurement; farmers knowledge; India Allocative efficiency; Best practice techniques; Economic efficiency; Intra-firm diffusion; Process of adjustment and time-path; Technical efficiency200110.1016/S0169-5150(00)00077-32015-12-12