Distexhe V and S Perelman (1994). “Technical Efficiency and Productivity Growth in an Era of Deregulation: the Case of Airlines.” Swiss J Economics and Statistics 130(4): 669-689.
Distexhe V and S Perelman (1994). “Technical Efficiency and Productivity Growth in an Era of Deregulation: the Case of Airlines.” Swiss J Economics and Statistics 130(4): 669-689.