Assume a set of DMUs defined with multiple inputs and multiple outputs over many years. Is there a way for an inefficient DMU to select its benchmark(s) by using the outcomes over all the years?
If this is possible, how would the DMU select the input or output variables to improve first?
Thank you very much for your answers, Saeed. In unifying the efficient frontier, I see two problems: (1) the same DMU will be treated as a different DMU in each different year, which also suggest that the same DMU will be practically competing with itself (2) Assuming that this option stands, which year should be considered for measuring the required improvement? And, again, which input or output variable to consider for such improvement?
Hi!
What about SBM model?! you can use SBM model for only last period. I think when you are looking for possible solutions to improve the performance of a specific DMU, you should analyze the current performance. However analyzing panel data help the managers to identify the effective factors on the performance of DMUs during the time, I believe SBM on last period is better option. Also you can think about SBM with panel data (search about this).
