43 Figure 5.1 Average Salary Records by Age and Skill Level 5 Upward Social Mobility 10 9.5 9 8.5 20 30 40 50 60 70 Low Skill Workers age 11 10.5 10 9.5 9 20 30 40 50 60 70 High Skill Workers age Data source: Aghion, Philippe, Ufuk Akcigit, Antonin Bergeaud, Richard Blundell and David Hemous (2015) ‘Innovation, income inequality, and social mobility’, 28 July, VOX – CEPR’s Policy Portal ）
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