suppose that avery and stacey are going shopping at the local mall and that each decides independently whether to buy many items or few items. if both shoppers buy a few items, both will receive 70 utils; if both buy many items, both will receive 100 utils. if one buys many items, and the other buys few items, the one who buys many items will receive 150 utils, while the other will receive 40 utils. what is the nash equilibrium? both will buy many items. both will buy a few items. avery will buy many items while stacey will buy a few items. stacey will buy many items while avery will buy a few items.