Problem
In an hour, a baker earns $10, a gas pump attendant earns $6, and a copy shop worker earns $7. Suppose that the government introduces an income tax of $1 an hour. Calculate the marginal tax rates for bakers, gas pump attendants, and copy shop workers. Is this tax progressive or regressive?
The response should include a reference list. Double-space, using Times New Roman 12 pnt font, one-inch margins, and APA style of writing and citations.