Key Concepts and Summary

Key Terms

earned income tax credit (EITC) a method of assisting the working poor through the tax system effective income tax percentage of total taxes paid divided by total income estate tax a tax imposed on the value of an inheritance income a flow of money received, often measured on a monthly or an annual basis income inequality when one group receives a disproportionate share of total income or wealth than others Lorenz curve a graph that compares the cumulative income actually received to a perfectly equal distribution of income; it shows the share of population on the horizontal axis and the cumulative percentage of total income received on the vertical axis Medicaid a federal–state joint program enacted in 1965 that provides medical insurance for certain (not all) people with a low-income, including those near the poverty line as well as those below the poverty line, and focusing on low-income families with children, the low-income elderly, and people with disabilities poverty the situation of being below a certain level of income one needs for a basic standard of living poverty line the specific amount of income one requires for a basic standard of living poverty rate percentage of the population living below the poverty line poverty trap antipoverty programs set up so that government benefits decline substantially as people earn more income—as a result, working provides little financial gain progressive tax system a tax system in which the rich pay a higher percentage of their income in taxes, rather than a higher absolute amount quintile dividing a group into fifths, a method economists often use to look at distribution of income redistribution taking income from those with higher incomes and providing income to those with lower incomes safety net the group of government programs that provide assistance to people at or near the poverty line Supplemental Nutrition Assistance Program (SNAP) a federally funded program, started in 1964, in which each month poor people receive SNAP cards they can use to buy food wealth the sum of the value of all assets, including money in bank accounts, financial investments, a pension fund, and the value of a home

Key Concepts and Summary

15.1 Drawing the Poverty Line

Wages are influenced by Supply and demand in labor markets influence wages. This can lead to very low incomes for some people and very high incomes for others. Poverty and income inequality are not the same thing. Poverty applies to the condition of people who cannot afford the necessities of life. Income inequality refers to the disparity between those with higher and lower incomes. The poverty rate is what percentage of the population lives below the poverty line, which the amount of income that it takes to purchase the necessities of life determines. Choosing a poverty line will always be somewhat controversial.

15.2 The Poverty Trap

A poverty trap occurs when government-support payments decline as the recipients earn more income. As a result, the recipients do not end up with much more income when they work, because the loss of government support largely or completely offsets any income that one earns by working. Phasing out government benefits more slowly, as well as imposing requirements for work as a condition of receiving benefits and a time limit on benefits can reduce the harshness of the poverty trap.

15.3 The Safety Net

We call the group of government programs that address poverty the safety net. In the United States, prominent safety net programs include Temporary Assistance to Needy Families (TANF), the Supplemental Nutrition Assistance Program (SNAP), the earned income tax credit (EITC), Medicaid, and the Special Supplemental Food Program for Women, Infants, and Children (WIC).

15.4 Income Inequality: Measurement and Causes

Measuring inequality involves making comparisons across the entire distribution of income. One way of doing this is to divide the population into groups, like quintiles, and then calculate what share of income each group receives. An alternative approach is to draw Lorenz curves, which compare the cumulative income actually received to a perfectly equal distribution of income. Income inequality in the United States increased substantially from the late 1970s and early 1980s into the 2000s. The two most common explanations that economists cite are changes in household structures that have led to more two-earner couples and single- parent families, and the effect of new information and communications technology on wages.

15.5 Government Policies to Reduce Income Inequality

Policies that can affect the level of economic inequality include redistribution between rich and poor, making it easier for people to climb the ladder of opportunity; and estate taxes, which are taxes on inheritances. Pushing too aggressively for economic equality can run the risk of decreasing economic incentives. However, a moderate push for economic equality can increase economic output, both through methods like improved education and by building a base of political support for market forces.

Self-Check Questions

1 . Describe how each of these changes is likely to affect poverty and inequality: a. Incomes rise for low-income and high-income workers, but rise more for the high-income earners. b. Incomes fall for low-income and high-income workers, but fall more for high-income earners. 2 . Jonathon is a single father with one child. He can work as a server for $6 per hour for up to 1,500 hours per year. He is eligible for welfare, and so if he does not earn any income, he will receive a total of $10,000 per year. He can work and still receive government benefits, but for every $1 of income, his welfare stipend is $1 less. Create a table similar to Table 15.4 that shows Jonathan’s options. Use four columns, the first showing number of hours to work, the second showing his earnings from work, the third showing the government benefits he will receive, and the fourth column showing his total income (earnings + government support). Sketch a labor-leisure diagram of Jonathan’s opportunity set with and without government support. 3 . Imagine that the government reworks the welfare policy that was affecting Jonathan in question 2, so that for each dollar someone like Jonathan earns at work, his government benefits diminish by only 30 cents. Reconstruct the table from question 2 to account for this change in policy. Draw Jonathan’s labor-leisure opportunity sets, both for before this welfare program is enacted and after it is enacted. 4 . We have discovered that the welfare system discourages recipients from working because the more income they earn, the less welfare benefits they receive. How does the earned income tax credit attempt to loosen the poverty trap? 5 . How does the TANF attempt to loosen the poverty trap? 6 . A group of 10 people have the following annual incomes: $24,000, $18,000, $50,000, $100,000, $12,000, $36,000, $80,000, $10,000, $24,000, $16,000. Calculate the share of total income that each quintile receives from this income distribution. Do the top and bottom quintiles in this distribution have a greater or larger share of total income than the top and bottom quintiles of the U.S. income distribution? 7 . Table 15.9 shows the share of income going to each quintile of the income distribution for the United Kingdom in 1979 and 1991. Use this data to calculate what the points on a Lorenz curve would be, and sketch the Lorenz curve. How did inequality in the United Kingdom shift over this time period? How can you see the patterns in the quintiles in the Lorenz curves?