UNT ECON 1100 EXAM 3 ACTUAL PAPER
2026 QUESTIONS AND SOLUTIONS
GRADED A PLUS
◉ Characteristics of Monopoly
Answer: 1. Market demand curve = monopoly demand curve
2. Demand does not equal MR (2 diff curves)
3. Price-setter: firm has control over price of goods
4. Barriers to entry
◉ 4 examples of monopolies
Answer: 1.patents/copyrights
2. own scarce resources
3. licensing requirements
4. economies of scale
◉ MR = MC
Answer: go upward to MC curve, from quantity on Monopolies curve
◉ Total Revenue
, Answer: Price x Quantity
◉ Total Cost
Answer: ATC x Q; use thr atc from the given MR=MC quantity
◉ Economic Profit
Answer: TR-TC
◉ Losses in Monopolies
Answer: same as perfect competition
P > AVC continue and P< AVC shut down
◉ Monopolies for Long Run
Answer: positive economic profit due to barriers to entry
- Price above ATC (profit made)
-monopolies are inefficient bc MB > MC
◉ Price discrimination in monopolies
Answer: charging different groups, different prices for the same
goods
◉ Calculate Total Revenue w/ price discrimination
2026 QUESTIONS AND SOLUTIONS
GRADED A PLUS
◉ Characteristics of Monopoly
Answer: 1. Market demand curve = monopoly demand curve
2. Demand does not equal MR (2 diff curves)
3. Price-setter: firm has control over price of goods
4. Barriers to entry
◉ 4 examples of monopolies
Answer: 1.patents/copyrights
2. own scarce resources
3. licensing requirements
4. economies of scale
◉ MR = MC
Answer: go upward to MC curve, from quantity on Monopolies curve
◉ Total Revenue
, Answer: Price x Quantity
◉ Total Cost
Answer: ATC x Q; use thr atc from the given MR=MC quantity
◉ Economic Profit
Answer: TR-TC
◉ Losses in Monopolies
Answer: same as perfect competition
P > AVC continue and P< AVC shut down
◉ Monopolies for Long Run
Answer: positive economic profit due to barriers to entry
- Price above ATC (profit made)
-monopolies are inefficient bc MB > MC
◉ Price discrimination in monopolies
Answer: charging different groups, different prices for the same
goods
◉ Calculate Total Revenue w/ price discrimination