The profit-maximizing level of output for a firm occurs at the point at which

Which is NOT an example of signaling high quality in a social setting

a. wearing a business suit on a job interview b. scrimping on the tip for the waiter after a dinner date c. offering an expensive engagement ring to your bride d. Visiting the beauty salon before a big date

Opportunity cost is a measure of

a. foregone opportunities. b. value based on the alternative not chosen. c. value in terms of the cost of production. d. the difference between production cost and resource cost. e. both a and b.