Exercise 2.pure competition, perfect competition, cutthroat competition, intense competition, moderate competition, weak competition, price competition, competition for customers, industry competition

Exercise 4. profitability, attractiveness, positioned, superior, leveraging, generic, business unit, low cost, profit, rivals, average, price war, matures, cost advantage, efficiencies, sustain, improves, leapfrog, targeting, segments, attributes, customers, value added, premium, incurred, suppliers, pass along, substitute, imitation, pursuing, narrow, loyalty, bargaining, target, broad-market, sub-segment, compatible, attempts, long term, «stuck in the middle»