Progressive tax structures have tiered tax costs that cost greater profits men and women greater percentages of their earnings and provide the lowest quotes to these with the lowest incomes. Both of these structures may additionally be regarded "fair" in the feel that they are regular and practice a rational method to taxation.
Childhood, adulthood, and old age. Or maybe four: infancy, childhood, adolescence, and adulthood.
C) a career that has a relatively low supply and high demand for workers