You have a firm fixed price contract with a clause stating that all changes in the scope of work must be written. One of your team members verbally instructed the seller to add a change that resulted in a 100% task overrun. Under this situation, what conflict management strategy should you use (as the project manager) with the team member

Which of the following statements is (are) true? i. free entry to a perfectly competitive industry results in the industry's firms earning zero economic profit in the long run, except for the most efficient producers, who may earn economic rent. ii. in a perfectly competitive market, long-run equilibrium is characterized by lmc < p < latc. iii. if a competitive industry is in long-run equilibrium, a decrease in demand causes firms to earn negative profit because the market price will fall below average total cost.