Between 2004 and 2007, total U.S. employment increased by 6.8 million workers, but the number of unemployed workers declined by only 1.1 million. How are these numbers consistent with each other? Why might one expect a reduction in the number of people counted as unemployed to be smaller than the increase in the number of people employed?

Between 1997 and 1998, total U.S. employment increased by 2.1 million workers, but the number of unemployed workers declined by only 0.5 million. How are these numbers consistent with each other? Why might one expect a reduction in the number of people counted as unemployed to be smaller than the increase in the number of people employed?

Go to the website of the Bureau of Labor Statistics (http://www.bls.gov). For each of the past five years, find the inflation rate as measured by the consumer price index for all items (sometimes called headline inflation) and as measured by the CPI excluding food and energy (sometimes called core inflation). Compare these two measures of inflation. Why might they be different? What might the difference reveal about shifts in the aggregate supply curve and shifts in the short-run Phillips curve?

As shown in Figure $3$ , the overall labor-force participation rate of men declined between $1970$ and $2000$. At the same time, the labor-force participation rate of women increased sharply. This overall decline reflects different patterns for different age groups, however, as shown in the following tables.

$$\begin{array}{lcccc} & \text { All Men } & \begin{array}{c} \text { Men } \\ 16-24 \end{array} & \begin{array}{c} \text { Men } \\ 25-54 \end{array} & \begin{array}{c} \text { Men } \\ 55 \text { and older } \end{array} \\ \hline 1970 & 80 \% & 69 \% & 96 \% & 56 \% \\ 2000 & 75 & 69 & 92 & 40 \end{array}$$

$$\begin{array}{ccccc} & \text { All Women } & \begin{array}{c} \text { Women } \\ 16-24 \end{array} & \begin{array}{c} \text { Women } \\ 25-54 \end{array} & \begin{array}{c} \text { Women } \\ 55 \text { and older } \end{array} \\ \hline 1970 & 43 \% & 51 \% & 50 \% & 25 \% \\ 2000 & 60 & 63 & 77 & 26 \end{array}$$

The Bureau of Labor Statistics announced that in April $2010$, of all adult Americans, $139,455,000$ were employed, $15,260,000$ were unemployed, and $82,614,000$ were not in the labor force. Use this information to calculate the labor-force participation rate

In June $2009$, at the trough of the Great Recession, the Bureau of Labor Statistics announced that of all adult Americans, $140,196,000$ were employed, $14,729,000$ were unemployed, and $80,729,000$ were not in the labor force. Use this information to calculate:

the adult population.

The Bureau of Labor Statistics announced that in April $2010$, of all adult Americans, $139,455,000$ were employed, $15,260,000$ were unemployed, and $82,614,000$ were not in the labor force. Use this information to calculate the unemployment rate

Go to the website of the Bureau of Labor Statistics (http:/ / www.bls.gov) and find data on the CPI. By how much has the index including all items risen over the past year? For which categories of spending have prices risen the most? The least? Have any categories experienced price declines? Can you explain any of these facts?

In June 2009 , at the trough of the Great Recession, the Bureau of Labor Statistics announced that of all adult Americans, 140,196,000 were employed, 14,729,000 were unemployed, and $80,729,000$ were not in the labor force. Use this information to calculate:

the adult population.

Graph each ellipse and find its foci. You may wish to check your graphs on a computer or a graphing calculator.

$$5 x ^ { 2 } + y ^ { 2 } = 25$$

Solve the system using any method. Explain your choice of method.

$$\left. \begin{array} { l } { - 2 x + 10 + y = \frac { 1 } { 3 } x ^ { 2 } } \\ { y = 10 } \end{array} \right.$$

The Bureau of Labor Statistics announced that in April $2010$, of all adult Americans, $139,455,000$ were employed, $15,260,000$ were unemployed, and $82,614,000$ were not in the labor force. Use this information to calculate the labor force

Go to the website of the Bureau of Labor Statistics (http:/ / www.bls.gov). What is the national unemployment rate right now? Find the unemployment rate for the demographic group that best fits a description of you (for example, based on age, sex, and race). Is it higher or lower than the national average? Why do you think this is so ?

Why is frictional unemployment inevitable? How might the government reduce the amount of frictional unemployment?