What this chart shows

↑ The takeaway

Since 1997, UK productivity rose by roughly 32% while real pay rose by only 11%. Workers are producing more than ever — they just aren't being paid for it.

Two indices, both set to 100 in 1997: output per hour worked (a standard productivity measure) and average weekly earnings deflated by CPIH (a measure of real pay). When the lines diverge, workers are producing more value but receiving a smaller share of it as wages.

From 1970 to the late 1990s, productivity and pay roughly tracked each other. After 2000, productivity continued to climb while real pay growth slowed. The 2008 financial crisis broke the link entirely: productivity stagnated (the UK's "productivity puzzle") while real pay fell, and had still not recovered its 2008 level by 2023.

Why it matters

If pay had kept pace with productivity since 1997, the average UK worker would earn significantly more today. The gap represents value created by labour that flows instead to profits, rents, and capital income. It is a structural driver of wealth inequality — and it hits hardest in regions and sectors where workers have the least bargaining power.

Methodology & data quality
The productivity series uses ONS output per hour worked for the whole economy (series LZVD), seasonally adjusted, rebased to 1997 = 100. The pay series uses ONS Average Weekly Earnings total pay (series KAB9), deflated to real terms using the CPIH all-items index (series L55O), then rebased to 1997 = 100. Both series are annual averages. The gap percentage is calculated as: (productivity_index - pay_index) / pay_index × 100. When live ONS API data is unavailable, the pipeline uses illustrative values derived from published ONS bulletins. Known caveats: AWE covers employees only (not self-employed); CPIH vs CPI choice affects the deflator; composition effects (changing mix of part-time/full-time, sectors) can shift AWE independently of individual pay growth.