Ueda T and K Hoshino (2003). “Estimation of Firms Efficiencies Using Kalman Filter and a Stochastic Efficiency Model.” J Faculty of Engineering, Seikei University 40(1): 11-16.
Ueda T and K Hoshino (2003). “Estimation of Firms Efficiencies Using Kalman Filter and a Stochastic Efficiency Model.” J Faculty of Engineering, Seikei University 40(1): 11-16.