If an individual consumer is willing to pay $11 for one unit of a good but is able to purchase it for $7, then his or her consumer surplus from the purchase of that unit would be:

The market supply curve is also the

A) marginal social cost curve. B) marginal value curve. C) marginal social benefit curve. D) maximum-supply-price curve.

The opportunity cost of owner-provided labor is the

A) wage rate paid to the owner. B) explicit part of the wage rate paid to the owner. C) salary the owner could have made if she worked at her best alternative job. D) profit after all of the bills have been paid.