Answer:
0.73 or 73%
Explanation:
Return on investment (ROI) shows the benefit an investor receives in relation to their invested amount. It is expressed as a ratio or a percentage of the net income against the investment's cost.
It is calculated using the formula below.
ROI = returns( profits)/ cost of investments.
For Lena, the cost of investment is $52,000( cost of the degree). The returns for one are the earnings in the year, which is $38,000.
ROI= $38,000/ $52,000
ROI =0.73 or 73%
Marginal utility will be calculated for movies by: 14/(4*4) which would mean 0.875 utils per dollar per movie. Whereas, for apps, it would be: 8/(3*4) which would mean utils per dollar per app to be 0.667. Hence, movies tend to carry higher utility.
A niche market is the subset of the market on which a specific product is focused. The market niche defines the product features aimed at satisfying specific market needs, as well as the price range, production quality and the demographics that it is intended to target. It is also a small market segment.
D.) Whether to order a pepperoni or a cheese pizza is a decision that cannot be made at the margin.
Making decisions at a margin is merely considering an option on top of your made decision. Cost and Benefit is a factor in thinking in a margin.
You have already decided to move. Your marginal decision is whether to move to Boston from Chicago,
You have already decided to spend the day on Saturday. Your marginal decision is whether to watch a movie or go hiking.
You have already decided to have a two-week vacation. Your marginal decision is whether to spend it on the shore or in town.
You have decided to order a pizza. Any flavor of pizza will still make you spend money. So there is no marginal decision needed.
Output and input levels always tend to an equilibrium point it the long run, meaning they are inelastic in the long run.
Elasticity refers to how much supply and/or demand changes with changes in pricing. The more elastic, the more change there is.
In the short-term, output and and supply can change dramatically, but in the long run things tend back to the middle (equilibrium).