Producer and consumer surpluses are measures of Multiple Choice firm conduct. exit conditions. industry performance. market structure.What would be an expected pattern of industry concentration and pricing behavior? Multiple Choice Firms with a high Herfindahl-Hirschman index would have a high Lerner index. Firms with a low Herfindahl-Hirschman index would have a high C4 ratio. Firms with a low Herfindahl-Hirschman index would have a high Lerner index. Firms with a high Herfindahl-Hirschman index would have a low Dansby-Willig index