) A Moving to another question will save this response. Question 20 Airlines tend to use revenue management strategies because they have: poor management controls high variable costs per passenger but low fixed costs low variable cost per passengers but high fixed costs unknown or nonquantifiable costs Question 21 Which of the following aggregate planning strategies is known to lower employee morale? yield management changing inventory levels varying work force size by hiring or layoffs e back ordering during high demand periods -> A Moving to another question will save this response. Question 22 Which of the following aggregate planning options is NOT associated with manipulation of product or service demanda price cuts or discounts promotion counterseasonal products or services subcontracting out work Question 24 Revenue (or yield) management is best described as: O a situation where management yields to labor demands. allocation of scarce resources to customers at prices that will maximize revenue. O a situation where the labor union yields to management demands. O a process designed to increase the rate of output