Introduction to Management Science 12th Edition by Bernard Taylor

Exercise 19

Tidewater City Bank has four branches with the following inputs and outputs:
input 1 = teller hours (100s)
input 2 = space (100s ft. 2 )
input 3 = expenses ($1,000s)
output 1 = deposits, withdrawals, and checks processed (1,000s)
output 2 = loan applications
output 3 = new accounts (100s)
The monthly output and input values for each bank are as follows:
Using data envelopment analysis (DEA), determine which banks, if any, are inefficient.