The characteristic most closely associated with oligopoly is: no control over price. O a few large producers. O product standardization. O easy entry into the industry. In long-run equilibrium in a monopolistically competitive industry:* O P > minimum ATC. O P = minimum ATC. OP The economic incentive for price discrimination depends on * differences among buyers' demand elasticities. O differences among sellers' costs. prejudices of business managers. O a desire to evade antitrust legislation.