More or Fewer Deliveries? Consider a delivery firm that delivers packages by bicycle, charging $13 per package and paying each of its workers $12 per hour. One day, one of the workers was 2 hours late...

More or Fewer Deliveries? Consider a delivery firm that delivers packages by bicycle, charging $13 per package and paying each of its workers $12 per hour. One day, one of the workers was 2 hours late to work, and the number of packages delivered that day decreased by one package.

a. Did the tardiness of the worker increase or decrease the firm’s profit?

b. Based on the new information provided by this experience, should the firm produce more deliveries by increasing its workforce, or produce fewe deliveries by reducing its workforce? Explain, using the marginal principle.