A Student Has a Job That Pays a Wage Rate

question 363

Multiple Choice

A student has a job that pays a wage rate of $10 per hour. The night before an economics exam, the student has set aside four hours to study for the exam, estimating that for each hour spent studying, her grade will rise by 5 points. That night, she gets a call from her employer to come to work for a wage rate of $15 per hour for that night. She decides to work for three hours and earn an extra $45.00. The next day she takes the test and gets a grade of 75. The opportunity cost for her work is

• A) the $45.00 she earned.
• B) the 15 extra points she estimates that she could have earned on the exam if she had studied the extra three hours.
• C) the three hours she did not study.
• D) the entire four hours she set aside for studying.

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Definitions:

Break-even Point

The financial state at which total costs and total revenues are equal, indicating that a business or project is neither at a loss nor making a profit.

Shutdown Point

The price and output level at which a firm's revenue just covers its variable costs, below which it is better for the firm to temporarily cease operations.

Short-run Supply Curve

The short-run supply curve illustrates how the quantity of goods supplied by producers changes in response to a change in price over a short period, factoring in some fixed production costs.

Marginal Cost Curve

A graphical representation showing how the cost of producing one additional unit of a good or service changes as production volume varies.