Income Mobility

Another factor to consider when studying the degree of inequality in a society is the amount of income mobility. Income mobility refers to the ease with which workers can move up and down in the hierarchy of earning power. If the rich always stay rich and the poor always stay poor, then an unequal income distribution is a permanent and serious problem. If workers easily shift from middle class to upper class or from lower class to middle class, however, then the degree of inequality becomes less serious, since the inequality is fluid and temporary (on an individual basis).

The Causes of Inequality

In one sense, the growth of inequality in the last part of the twentieth century comes as a surprise. In the 1950s, the bottom part of the income distribution contained large concentrations of two kinds of families: farm families whose in-kind income was not counted in Census data, and elderly families, many of whom were ineligible for the new Social Security program. Over subsequent decades, farm families declined as a proportion of the population while increased Social Security benefits and an expanding private pension system lifted elderly incomes. Both trends favored greater income equality but were outweighed by four main factors.

• Family structure. Over time, the two-parent, one-earner family was increasingly replaced by low-income single-parent families and higher-income two-parent, two-earner families. A part of the top quintile’s increased share of income reflects the fact that the average family or household in the top quintile contains almost three times as many workers as the average family or household in the bottom quintile.

• Trade and technology. Trade and technology increasingly shifted demand away from less-educated and less-skilled workers toward workers with higher education or particular skills. The result was a growing earnings gap between more- and less-educated/skilled workers.

• Expanded markets. With improved communications and transportation, people increasingly functioned in national, rather than local, markets. In these broader markets, persons with unique talents could command particularly high salaries.

• Immigration. In 2002, immigrants who had entered the country since 1980 constituted nearly 11 percent of the labor force (see immigration). A relatively high proportion of these immigrants had low levels of education and increased the number of workers competing for low-paid work.7

These factors, however, can explain only part of the increase in inequality. One other factor that explains the particularly high incomes of the highest-paid people is that between 1982 and 2004, the ratio of pay of chief executive officers to pay off the average worker rose from 42:1 to 301:1, and pay of other high-level managers, lawyers, and people in other fields rose substantially also.

Mbaku, John Mukum. “Bureaucratic Corruption in Africa: The Futility of Cleanups.” Cato Journal 16, no. 1 (1996): 99–118.

Rothbard, Murray. “Egalitarianism as a Revolt against Nature.” Available online at: http://www.lewrockwell.com/rothbard/rothbard31.html.

Welch, Finis. “In Defense of Inequality.” American Economic Review 89, no. 2 (1999): 1–17.

UNIT 2

SUPPLEMENTARY TEXT

Economists use the term “inflation” to denote an ongoing rise in the general level of prices quoted in units of money. The magnitude of inflation—the inflation rate—is usually reported as the annualized percentage growth of some broad index of money prices. With U.S. dollar prices rising, a one-dollar bill buys less each year. Inflation thus means an ongoing fall in the overall purchasing power of the monetary unit.

There are several variations on inflation:

• Deflation is when the general level of prices is falling. This is the opposite of inflation.

• Hyperinflation is unusually rapid inflation. In extreme cases, this can lead to the breakdown of a nation's monetary system. One of the most notable examples of hyperinflation occurred in Germany in 1923, when prices rose 2,500% in one month!

• Stagflation is the combination of high unemployment and economic stagnation with inflation. This happened in industrialized countries during the 1970s, when a bad economy was combined with OPEC raising oil prices.

Causes of Inflation

Economists wake up in the morning hoping for a chance to debate the causes of inflation. There is no one cause that's universally agreed upon, but at least two theories are generally accepted:

Demand-Pull Inflation - This theory can be summarized as "too much money chasing too few goods". In other words, if demand is growing faster than supply, prices will increase. This usually occurs in growing economies.

Cost-Push Inflation - When companies' costs go up, they need to increase prices to maintain their profit margins. Increased costs can include things such as wages, taxes, or increased costs of imports.

Costs of Inflation

Almost everyone thinks inflation is evil, but it isn't necessarily so. Inflation affects different people in different ways. It also depends on whether inflation is anticipated or unanticipated. If the inflation rate corresponds to what the majority of people are expecting (anticipated inflation), then we can compensate and the cost isn't high. For example, banks can vary their interest rates and workers can negotiate contracts that include automatic wage hikes as the price level goes up.

Problems arise when there is unanticipated inflation:

• Creditors lose and debtors gain if the lender does not anticipate inflation correctly. For those who borrow, this is similar to getting an interest-free loan.

• Uncertainty about what will happen next makes corporations and consumers less likely to spend. This hurts economic output in the long run.

• People living off a fixed-income, such as retirees, see a decline in their purchasing power and, consequently, their standard of living.

• The entire economy must absorb repricing costs ("menu costs") as price lists, labels, menus and more have to be updated.

• If the inflation rate is greater than that of other countries, domestic products become less competitive.

People like to complain about prices going up, but they often ignore the fact that wages should be rising as well. The question shouldn't be whether inflation is rising, but whether it's rising at a quicker pace than your wages.

Finally, inflation is a sign that an economy is growing. In some situations, little inflation (or even deflation) can be just as bad as high inflation. The lack of inflation may be an indication that the economy is weakening. As you can see, it's not so easy to label inflation as either good or bad - it depends on the overall economy as well as your personal situation.