The United States economy has generated an impressive number of jobs since the 1970s. The contrast between the nation's vigorous employment growth and the modest performance of other major industrial countries is striking. Despite this rosy track record, the real (inflation adjusted) wages and salaries of many workers have stagnated or slipped in recent years. This development has provoked concerns about the quality of new jobs. Structural shifts in the composition of employment--from high-wage goods-producing to low-wage services-related sectors--is the culprit most often cited for the deteriorating quality of jobs.

Regions vary greatly in the make-up of their labor force, in their industry composition of employment, and their economic experience. Reviewing and examining recent developments in average earnings per job in Pima County with comparisons to Arizona and the nation is an important first step in understanding the economic forces at play in Pima County.

Discussion: Average Annual Earnings Per Job are computed by dividing BEA total industry earnings estimates by the BEA total full- and part-time jobs estimates. No convenient or adequate means exist at the county or regional level for converting the job estimates to a full-time equivalent measure. So, interpret the average earnings per job estimates with caution in consideration of the following issues:

Average earnings per job within industries involving more part-time work is lower than industries involving more full-time work, although there could be little difference in the underlying wage of full-time workers. Such differences could also prevail between counties and regions. An increase in the proportion of part-time jobs over time may erode average earnings per job estimates, although full-time earnings per worker may have remained unchanged.

As with per capita income, average earnings per job may be subject to extreme short-run variation, especially in smaller counties. Major construction projects relating to building dams, nuclear power plants, and private plant construction projects have caused extreme fluctuations in many smaller counties. Such changes typify both small and large agriculture-dependent counties owing to the extreme annual variations in farm incomes. Also, Since average earnings per job are just a simple average, it does not account for variations in the distribution of earnings among high- vs. low-wage jobs.

Figure 1 depicts Pima County's annual average earnings per job over 1970-2022 in current and constant (2017) dollars. Constant dollar measurements remove the effects of inflation. They allow for comparison of changes in the real purchasing power of Pima County over time.

When measured in current dollars, Pima County's average earnings per job increased 743.26%, from $7,170 in 1970 to $60,461 in 2022. When measured in constant 2017 dollars to adjust for inflation, it advanced 43.63%, from $36,274 in 1970 to $52,102 in 2022.

Figure 2 traces Pima County's and Arizona's annual real average earnings per job for the period 1969-2022 to illustrate real average earnings per job patterns over time. During this 54-year period, Pima County's real average earnings per job rose from $35,823 in 1969 to $52,102 in 2022, for a net gain of $16,279, or 45.44%. In comparison, Arizona's real average earnings per job increased from $37,066 in 1969 to $57,450 in 2022, for a net gain of $20,384, or 54.99%.

Figure 3 shows Pima County's real average earnings per job growth in a broader context by offering direct comparisons across time with Arizona, the United States. The growth indices shown here express each region's real average earnings per job in 1969 as a base figure of 100, and the real average earnings per jobs in later years as a percentage of the 1969 base figure. This method allows for more direct comparison of differences in real average earnings per job growth between regions that may differ vastly in size.

Pima County's overall real average earnings per job growth was 45.44% over 1969-2022 trailed Arizona's increase of 54.99%, and fell below the United States' increase of 62.26%.

Figure 4 depicts the trends for average earnings per job relative to the national average by tracing Pima County and Arizona average earnings per job as a percent of the national average over 1969-2022.

In 1969, Pima County's average earnings per job amounted to 94.23% of the national average; in 2022, it approximated 84.46%. Similarly, in 1969, Arizona's average earnings per job totaled 97.50% of the national average; in 2022, it consisted of 93.13%.

Figure 5 highlights the short-run pattern of Pima County's real average earnings per job growth by tracking the year-to-year percent change over 1970-2022. The average annual percent change for the entire 53-year period is also illustrated on this chart to provide a benchmark for gauging periods of relative high--and relative low--growth against the backdrop of the long-term average.

On average, Pima County's real average earnings per job grew at an annual rate of 0.73% over 1970-2022. The county posted its highest growth in 2001 (8.86%) and posted its lowest growth in 2022 (-3.02%). In 2022, Pima County's real average earnings per job declined by -3.02%

Over the past five decades some counties have experienced extreme swings in growth, and often such swings have tended to coincide with the decades themselves. Figure 6 again illustrates the annual percent change in Pima County's real average earnings per job since 1970, but this time they are displayed with average growth rates for the decade of the 1970s, 1980s, 1990s, 2000s, 2010s, and 2020-2022.

During the 1970s, Pima County's annual real average earnings per job growth rate averaged 0.68%. It averaged -0.31% throughout the 1980s, 1.57% throughout the 1990s, 1.50% during the 2000s, 0.47% in the 2010s, -0.06% thus far this decade (2020-2022).

Figure 7 compares the decade average growth rates for Pima County noted in the previous graph with the corresponding decade averages for Arizona and the nation. As the chart reveals, Pima County's average annual real average earnings per job growth lagged Arizona's average in the 1970s (0.68% vs. 0.80%), recorded under Arizona's average in the 1980s (-0.31% vs. -0.11%), lagged Arizona's average during the 1990s (1.57% vs. 1.86%), outpaced Arizona's average during the 2000s (1.50% vs. 0.66%), posted below Arizona's average in the 2010s (0.47% vs. 1.02%), and trailed Arizona's average over the 3 year period of the current decade, 2020-2022 (-0.06% vs. 0.86%).

Finally, relative to nationwide real average earnings per job growth trends, Pima County fell below the nation in the 1970s (0.68% vs. 0.89%), lagged the nation in the 1980s (-0.31% vs. 0.71%), fell below the nation over the 1990s (1.57% vs. 1.68%), outgained the nation throughout the 2000s (1.50% vs. 0.72%), fell under the nation in the 2010s (0.47% vs. 1.01%), and outperformed the nation over 2020-2022 (-0.06% vs. -0.24%).