The weakening link between revenue and hiring
How strongly hiring responds to revenue growth, measured as a rolling eight-year elasticity for seven software companies and one airline. A value of 1.0 means headcount grows one-for-one with revenue. The striking fact is synchrony: all seven software companies are at their historical low at once, and most of the decline arrived after 2022. The same picture holds with seven and nine-year windows.
What does it show?
The slope of headcount on revenue over the trailing eight years is at its historical low for all seven software companies at once — Oracle 0.25, Apple 0.42, Adobe 0.45, Microsoft 0.48, Alphabet 0.61, Meta 0.62, Amazon 0.83.
Methodology
For each company and each fiscal year, OLS of log fiscal year-end headcount on log annual revenue over the trailing eight years; the plotted value is the slope — the revenue elasticity of headcount. Windows with fewer than seven observations, or where log revenue moved less than 0.15 (a slope fitted over a flat decade is noise, which is Oracle's 2014–2021), are omitted; gaps in a line are those omissions. Data sources and caveats as in the companion path chart. Sensitivity: rerun with 7-year and 9-year windows, the same companies end at their historical low, so the window length is not carrying the result. Descriptive, not causal: a falling slope says hiring responds less to growth, not why.