Asmild, Mette; Paradi, Joseph; Aggarwall, Vanita; … - In: Journal of Productivity Analysis 21 (2004) 1, pp. 67-89
The banking industry in Canada is essentially an oligopoly with five large participants controlling about 90% of the market. To evaluate the industry's performance over time, we need to deal with the problem of a small number of DMU's compared to the number of relevant inputs and outputs. To...
