Please provide the referrences for this.
1. “Monopolistic competition is monopolistic up to the point at which consumers become willing to buy close-substitute products and competitive beyond that point.” Explain.
2. Why do oligopolies exist? List five or six oligopolists whose products you own or regularly purchase. What distinguishes oligopoly from monopolistic competition?
3. Why is there so much advertising in monopolistic competition and oligopoly? How does such advertising help consumers and promote efficiency? Why might it be excessive at times?
4. What firm dominates the beer industry? That demand and supply factors have contributed to “fewness” in this industry?