A flood control district can construct a number of alternative controlworks to alleviate the flood pattern in the district. These alternatives include dam A, dam B, and a levee system C. The levee system can be built alone or in combination with dam A or B. Both dams cannot be built together but either one can function alone. The life of each dam is 80 years and the life of the levee system is 60 years. The cost of capital is 6 percent. Information on total investment, operation and maintenance costs, and average annual flood damage is given below. What form of flood control would be the most economical

The market price of cheeseburgers in a college town increased recently, and the students in an economics class are debating the cause of the price increase. some students suggest that the price increased because the price of beef, an important ingredient for making cheeseburgers, has increased. other students attribute the increase in the price of cheeseburgers to a recent increase in college student enrollment.1. the first group of students thinks the increase in the price of cheeseburgers is due to the fact that the price of beef, an important ingredient for making cheeseburgers, has increased. (what happened to demand and supply, shift to the right or left)2. the second group of students attributes the increase in the price of cheeseburgers to the increase in college student enrollment. (what happens to demand and supply, shift to the right or left)3. suppose that both of the events you analyzed above are partly responsible for the increase in the price of cheeseburgers. based on your analysis of the explanations offered by the two groups of students, how would you figure out which of the possible causes was the dominant cause of the increase in the price of cheeseburgers? (choose a, b,c, or d)a)if the price increase was small, then the supply shift in the market for cheeseburgers must have been larger than the demand shift.b)if the equilibrium quantity of cheeseburgers decreases, then the demand shift in the market for cheeseburgers must have been larger than the supply shift.c)if the equilibrium quantity of cheeseburgers decreases, then the supply shift in the market for cheeseburgers must have been larger than the demand shift.d)whichever change occurred first must have been the primary cause of the change in the price of cheeseburgers.

Match the various steps in the creative process undertaken by the ad agency for developing the campaign for wpu, to the steps in young's model of the creative process.creative process in developing wpu's campaignyoung's modelafter intensive analysis of the data and several rounds of brainstorming, the agency executives decided to take a break from this project (the wpu campaign), and instead work on a different client's project before tackling the wpu project again.using a combination of animatics and storyboards, the ad agency conducted research with a representative sample of sixty target consumers to pretest the campaign theme and the creative execution.during a brainstorming session in the creative department, a copywriter's suggestion for a slogan for wpu was recognized as an excellent central idea that could drive the campaign for wpu.the account planning, account management and creative departments at the ad agency had a series of meetings and brainstorming sessions to discuss the creative brief and the results of all the primary and secondary research done with the target consumers.the account planning and the account management groups at the ad agency conducted primary research with a representative sample of the target segment and also studied secondary research data to gain insights required for the campaign development process.

By 2020, automobile market analysts expect that the demand for electric autos will increase as buyers become more familiar with the technology. however, the costs of producing electric autos may increase because of higher costs for inputs (e.g., rare earth elements), or they may decrease as the manufacturers learn better assembly methods (i.e., learning by doing). what is the expected impact of these changes on the equilibrium price and quantity for electric autos?