Ethan received a gift card and was considering three options: digital camera, cell phone, or video games. After carefully thinking about it, Ethan narrowed his decision down to the digital camera and the cell phone. Finally, Ethan chose the cell phone. In three to five sentences, define opportunity cost and trade-off then explain the opportunity cost and trade-off of Ethan's decision.

An insurance company estimates the probability of an earthquake in the next year to be 0.0015. the average damage done to a house by an earthquake it estimates to be $90,000. if the company offers earthquake insurance for $150, what is company`s expected value of the policy? hint: think, is it profitable for the insurance company or not? will they gain (positive expected value) or lose (negative expected value)? if the expected value is negative, remember to show "-" sign. no "+" sign needed for the positive expected value

Here are the expected cash flows for three projects: cash flows (dollars) project year: 0 1 2 3 4 a − 6,100 + 1,275 + 1,275 + 3,550 0 b − 2,100 0 + 2,100 + 2,550 + 3,550 c − 6,100 + 1,275 + 1,275 + 3,550 + 5,550 a. what is the payback period on each of the projects? b. if you use a cutoff period of 2 years, which projects would you accept?

Match each definition in column 1 with a vocabulary word from column 2." some of the entries in column 2 do not apply costs which do not change with the level of output costs which change with the level of output the change in total costs resulting from an increase in output by one unit function showing the quantities of a particular good demanded at a range of price when the quantity supplied of a good is greater than the quantity demanded when the quantity demanded for a particular good is greater than the quantity supplied the price and quantity determined in a market when the supply equals the demand when revenue exceeds costs when costs exceeds revenue output where revenue = costs