Question 2 (2 points) Which of the following two market structures are LESS common? Monopoly and perfect competition Perfect competition and oligopoly Oligopoly and monopolistic competition Monopolistic competition and monopoly Question 4 (2 points) When technology replaces low-skilled jobs in one industry, in the short-run, there is loss of low-skilled jobs. The long-run impact is: higher productivity leading to a better standard of living. higher wages in low-skilled jobs. lower productivity leading to a worse standard of living. the loss of jobs in other industries. Question 8 (2 points) Saved A cost imposed on bystanders is cost. O a private a marginal private a marginal public an external