Industry earnings are incomes received by people who are directly involved with producing goods and services. Earnings, referred to also as "labor and proprietors income", include (1) wage and salary disbursements, (2) other labor income such as employer contributions to private retirement and medical insurance programs, and (3) the net incomes of proprietors (i.e., the owners of unincorporated enterprises).

In contrast to the more frequently cited employment data, earnings data more accurately reflect qualitative differences in labor's contributions toward the production of goods and services, namely the productivity differences reflected in variations in earnings per job. Earnings data, therefore, are better for comparing and tracking long-term trends and identifying short-run shifts in the level and composition of economic activity within and among counties.

Just like the employment data compiled by BEA, earnings data are reported on a place-of-work, or more accurately on a place-where-earned, basis.

Note: the BEA earnings data presented and discussed here in the context of comparing and assessing the economic growth and performance of county and regional economies are entirely separate and apart from--and should not be confused with--corporate earnings, which are compiled from the balance sheets of individual private corporations.

Figure 1 depicts St. Martin Parish's annual total industry earnings 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 St. Martin Parish over time.

When measured in current dollars, St. Martin Parish's total industry earnings increased 2,257.45%, from $38M in 1970 to $893M in 2022. When measured in constant 2017 dollars to adjust for inflation, it advanced 301.55%, from $192M in 1970 to $770M in 2022.

Figure 2 tracks St. Martin Parish's and Louisiana's annual real total industry earnings for the period 1969-2022 to illustrate real total industry earnings patterns over time. During this 54-year period, St. Martin Parish's real total industry earnings rose from $184M in 1969 to $770M in 2022, for a net gain of $586M, or 319.17%. In comparison, Louisiana's real total industry earnings advanced from $47,367M in 1969 to $139,345M in 2022, for a net gain of $91,978M, or 194.18%.

Figure 3 shows St. Martin Parish's real total industry earnings growth in a broader context by offering direct comparisons across time with Louisiana, the United States. The growth indices shown here express each region's real total industry earnings in 1969 as a base figure of 100, and the real total industry earningss in later years as a percentage of the 1969 base figure. This method allows for more direct comparison of differences in real total industry earnings growth between regions that may differ vastly in size.

St. Martin Parish's overall real total industry earnings growth was 319.17% over 1969-2022 outpaced Louisiana's increase of 194.18%, and topped the United States' increase of 278.59%.

Another interesting and insightful way of highlighting the total industry earnings growth of St. Martin Parish is to trace its individual percentage contributions to Louisiana's statewide total industry earnings over time, as shown in Figure 4. A rising share means a region's total industry earnings grew faster, or declined less, than Louisiana's total industry earnings, while a declining share shows it grew more slowly.

In 1969, St. Martin Parish's total industry earnings totaled 0.39% of Louisiana's total industry earnings, while in 2022 it comprised 0.55% thereby yielding a +0.16% share-shift.

Figure 5 highlights the short-run pattern of St. Martin Parish's real total industry earnings 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 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, St. Martin Parish's real total industry earnings grew at an annual rate of 2.95% over 1970-2022. The parish posted its highest growth in 1972 (20.40%) and posted its lowest growth in 2015 (-13.30%). In 2022, St. Martin Parish's real total industry earnings declined by -0.92%

Over the past five decades some parishes have experienced extreme swings in growth, and often such swings have tended to coincide with the decades themselves. Figure 6 again depicts the annual percent change in St. Martin Parish's real total industry earnings 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, St. Martin Parish's annual real total industry earnings growth rate averaged 6.26%. It averaged 1.88% during the 1980s, 1.85% in the 1990s, 4.38% during the 2000s, 1.59% during the 2010s, -1.09% thus far this decade (2020-2022).

Figure 7 compares the decade average growth rates for St. Martin Parish noted in the previous graph with the corresponding decade averages for Louisiana and the nation. As the chart reveals, St. Martin Parish's average annual real total industry earnings growth registered above Louisiana's average throughout the 1970s (6.26% vs. 4.91%), outpaced Louisiana's average during the 1980s (1.88% vs. 0.02%), fell below Louisiana's average in the 1990s (1.85% vs. 3.04%), exceeded Louisiana's average during the 2000s (4.38% vs. 2.40%), registered above Louisiana's average in the 2010s (1.59% vs. 0.98%), and fell below Louisiana's average over the 3 year period of the current decade, 2020-2022 (-1.09% vs. -0.83%).

Finally, relative to nationwide real total industry earnings growth trends, St. Martin Parish recorded above the nation in the 1970s (6.26% vs. 3.13%), fell under the nation throughout the 1980s (1.88% vs. 2.62%), fell below the nation throughout the 1990s (1.85% vs. 3.43%), led the nation during the 2000s (4.38% vs. 1.47%), fell below the nation over the 2010s (1.59% vs. 2.53%), and fell below the nation over 2020-2022 (-1.09% vs. 1.48%).