Glen found three brands of earbuds that have the specifications he wants. The three pairs of earbuds looked a bit different from each other, but Glen knew they would perform similarly. Still, each company offered its earbuds at a different price. What economic concept does this situation represent?
1.collusion
2.product differentiation
3.price-fixing
4.natural monopoly
1.collusion
2.product differentiation
3.price-fixing
4.natural monopoly