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 Franklin County with comparisons to Pennsylvania and the nation is an important first step in understanding the economic forces at play in Franklin 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 Franklin County's annual average earnings per job over 1969-2017 in current and constant (2012) dollars. Constant dollar measurements remove the effects of inflation. They allow for comparison of changes in the real purchasing power of Franklin County over time.

When measured in current dollars, Franklin County's average earnings per job increased 623.8%, from $6,747 in 1969 to $48,839 in 2017. When measured in constant 2012 dollars to adjust for inflation, it advanced 36.6%, from $33,712 in 1969 to $46,043 in 2017.

Figure 2 tracks Franklin County's and Pennsylvania's annual real average earnings per job for the period 1969-2017 to illustrate real average earnings per job patterns over time. During this 49-year period, Franklin County's real average earnings per job rose from $33,712 in 1969 to $46,043 in 2017, for a net gain of $12,331, or 36.6%. In comparison, Pennsylvania's real average earnings per job advanced from $36,672 in 1969 to $58,710 in 2017, for a net gain of $22,039, or 60.1%.

Figure 3 portrays Franklin County's real average earnings per job growth in a broader context by offering direct comparisons across time with Pennsylvania, 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.

Franklin County's overall real average earnings per job growth was 36.6% over 1969-2017 trailed Pennsylvania's increase of 60.1%, and fell below the United States' increase of 59.1%.

Figure 4 depicts the trends for average earnings per job relative to the national average by tracing Franklin County and Pennsylvania average earnings per job as a percent of the national average over 1969-2017.

In 1969, Franklin County's average earnings per job amounted to 93.8% of the national average; in 2017, it approximated 80.5%. Similarly, in 1969, Pennsylvania's average earnings per job totaled 102.0% of the national average; in 2017, it consisted of 102.7%.

Figure 5 highlights the short-run pattern of Franklin County's real average earnings per job growth by tracking the year-to-year percent change over 1970-2017. The average annual percent change for the entire 48-year period is also traced 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, Franklin County's real average earnings per job grew at an annual rate of 0.68% over 1970-2017. The county posted its highest growth in 1998 (6.36%) and posted its lowest growth in 1982 (-5.71%). In 2017, Franklin County's real average earnings per job grew by 2.32%

Over the past four 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 Franklin County's real average earnings per job since 1970, but this time they are overlayed with average growth rates for the decade of the 1970s, 1980s, 1990s, 2000s, and 2010-2017.

During the 1970s, Franklin County's annual real average earnings per job growth rate averaged 0.98%. It averaged -0.28% in the 1980s, 1.09% during the 1990s, 0.86% during the 2000s, and 0.78% thus far this decade (2010 to 2017).

Figure 7 compares the decade average growth rates for Franklin County noted in the previous graph with the corresponding decade averages for Pennsylvania and the nation. As the chart reveals, Franklin County's average annual real average earnings per job growth trailed Pennsylvania's average during the 1970s (0.98% vs. 1.17%), lagged Pennsylvania's average throughout the 1980s (-0.28% vs. 0.40%), posted below Pennsylvania's average throughout the 1990s (1.09% vs. 1.50%), topped Pennsylvania's average in the 2000s (0.86% vs. 0.83%), and trailed Pennsylvania's average over the 8 year period of the last decade, 2010-2017 (0.78% vs. 1.11%).

Finally, relative to nationwide real average earnings per job growth trends, Franklin County topped the nation in the 1970s (0.98% vs. 0.89%), fell under the nation throughout the 1980s (-0.28% vs. 0.70%), fell below the nation during the 1990s (1.09% vs. 1.68%), topped the nation during the 2000s (0.86% vs. 0.72%), and fell below the nation over 2010-2017 (0.78% vs. 0.92%).