system and method are reported in fig8 prajnesgu 2008 retrieved from http ageconsearch umn edu bitstream 47684 2 16 prajneshu pdf thus the corresponding output for the above defined variables is reported in fig9 where the h stands for hat se stands for standard error these results are also reported in their corresponding tables 3 2 the second stage corresponds with the estimation of the random part of equation 16 see fig1 a specific structure in the random part is to be imposed in the same manner mention by saha step 100 the corresponding parameters for this stage are the conditional mean of g or log of the square error term according with just r and j david 2011 p 10 e u03b5 0 the expected value of the error is zero or the expected mean value for the error term is zero although for this case this assumption is not quite correct so the output values corresponding with the variables of interest from the above system and method embodiment of fig1 are reported in fig1 4 according to saha after estimating m m 1 h m 2 h the starting values for ep utility parameters alpha and beta can be found through a suitable grid search in the above respect the grid search.