Womer NK, HFE Shroff, TR Gulledge and KE Haynes (2003). “Measuring Efficiency with a Linear Economic Model.” Appl Econ 35(13): 1459-1467.
Womer NK, HFE Shroff, TR Gulledge and KE Haynes (2003). “Measuring Efficiency with a Linear Economic Model.” Appl Econ 35(13): 1459-1467.