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What lies at the root of these challenges? Uncompetitive salaries take much of the blame. Across rich countries, teachers earn about 10% less than the average for people with tertiary education, according to the OECD. In lots of places the gap is widening. In real terms, teachers in England earned 12% less in 2022 than in 2010, while wages for roughly comparable graduates were about the same. In America, real wages for teachers declined about 6% over a similar period. They earn 26% less than other similarly educated professionals, reckons the Economic Policy Institute, a think-tank, though that gap narrows once benefits are included. This “pay penalty” is up from 6% in 1996. It is one of the largest such gaps in the world.