Which statement concerning the kinked demand curve model of oligopoly is false? The portion of the demand curve above the "kink" is more elastic than the portion below. The firm's marginal costs can sometimes shift without changing the profit-maximizing price and output. It assumes when one oligopolist raises the price, all others will follow. It addresses the question of price "stickiness."

While cell phones with holographic keyboards are currently in the introduction stage of the industry life cycle, tablet computers are in the growth stage. in the context of this scenario, which of the following statements is true? a. the industry for cell phones with holographic keyboards will face greater competition than the tablet industry. b. while the industry for cell phones with holographic keyboards will focus more on product innovation, the tablet industry will focus more on process innovation. c. while the industry for cell phones with holographic keyboards can reap the benefits of economies of scale, the tablet industry will experience no such benefits. d. the industry for cell phones with holographic keyboards will face price competition, whereas, in the tablet industry, the mode of competition will be non-price.