Part 1:
Utility:
- The ability for a good or service to be useful to the consumer.
- The utility of coffee would be giving the consumer more energy.
Complementary Demand:
- Products that increase or decrease the demand for another product.
- Soccer balls and soccer cleats are an example of a complementary demand.
Substitute Demand:
- Products that compete against each other that can be used instead of the other.
- Instead of drinking coffee, consumers could just go to bed earlier to get enough energy for the day.
Elastic Demand:
- Demand for the product is changed drastically when the price changes.
- If all coffee drinks suddenly rose to $10 a cup, then consumers would stop demanding it.
Inelastic Demand:
- Demand for the product does not change drastically when the price changes.
- If the price of gas goes up, consumers have no choice but to demand it because they need it.
Part 2:
Elastic Demand Schedule:
$ | #D | TR ($) |
20 | 800 | 16,000 |
30 | 120 | 3,600 |
40 | 80 | 3,200 |
50 | 3 | 150 |
60 | 1 | 60
|
Inelastic Demand Schedule:
$ | #D | TR ($) |
1.50 | 150 | 225 |
3.00 | 125 | 375 |
4.50 | 100 | 450 |
6.50 | 75 | 487.50 |
9.00 | 60 | 540
|
Part 3:
Increase:
$ | #D | D1 |
1.50 | 150 | 155 |
3.00 | 125 | 130 |
4.50 | 100 | 105 |
6.50 | 75 | 80 |
9.00 | 60 | 65
|
Decrease:
$ | #D | D1 |
1.50 | 150 | 140 |
3.00 | 125 | 115 |
4.50 | 100 | 90 |
6.50 | 75 | 65 |
9.00 | 60 | 50
|