However,we also have good reason to believe that the technology of organic and conventional farming may be similar in small and undeveloped rural areas, since poor farmers face a similar environment and cannot easily improve their production means by simply switching to organic farming during such a short time. Themajor difference between organic and conventional farming is reflected by the amount of input swhich are modeled by the translog production function. In other words, organic farming would not directly, but rather indirectly, influence productivity through the efficiency terms (i.e., TE and EE). If this is the case, a two-stage analysis is appropriate (Battese & Coelli, 1995). Therefore, to ensure the relevance of technical efficiency from the beginning,we will need to perform a preliminary statistical test to determine the right specification of our production function as follows: