longer considered successful just by executing the budget as planned. For the General Manager of an energy company operating 4 gas turbines the targets for the coming two years are set as follows: a. The number of employees will never exceed 1000 people; b. At least 10% increase in production will be guaranteed every year; c. Production efficiency will not fall below 45%; d. The quantity sold in the intraday market will not be more than half of the day-ahead commitment; The resources given to the General Manager are 1. Budget constraint for operating expense (OPEX) is B 2. Each turbine must operate at least 200 days per year (including maintenance) 3. The first and fourth turbines cannot operate at the same time! In order to have the candidate accept this General Manager position help him to model the problem as a Preemptive Goal Programming problem (25 Points)