Why has China's peak-earnings age fallen while America's held steady?
Core argument: China's "golden age" of peak earnings fell from 55 to 35 years old over the past 30 years, while the U.S. age of peak earnings held steady at roughly 45–50.
Over the past 30 years, the age of peak earnings, or "golden age," has remained stable at around 45-50 years old in the U.S., reflecting a consistent cross-sectional age-earnings profile. In contrast, China has experienced a significant shift, with the golden age decreasing from 55 to 35 years old. This change is attributed to China's rapid inter-cohort productivity growth and increased rental price of human capital, despite lower returns to experience compared to the U.S. While China's real earnings have grown drastically across all age groups, the U.S. has seen little growth in age-specific mean real earnings. As China's economy slows to a "new normal," its golden ages may begin to increase to older ages, similar to trends observed in Korea. This divergence highlights differing economic dynamics and labor market evolutions between the two largest global economies.




















Ed Comment (Note to Scott Winship):“…I took a first glance at today’s summary of your third installment on mobility. As always, thank you for your valuable contribution. As you know, I follow your work fairly closely. Frankly I’m always surprised by how much mobility remains relative to the past given the enormous amount of mobility that was created by both the post-WWII boom in manufacturing and public school education that ultimately sent the top 25% to college. My grandfather worked on Ford’s assembly line; my dad was an auto engineer; and I went to Harvard Business School. That was a generational change. For some time now, we test everyone, provide scholarships for most of the high-scoring disadvantaged, and assortatively mate. Given these onetime changes, it’s hard to imagine that there is as much potential for increased mobility as there used to be. I reflect on your findings against this context. With productivity slowing down, it’s hardly surprising that a growing share of children don’t exceed their parent’s earnings. On that point, I saw the following study earlier this week that seems to indicate that lifetime earnings may have increased, largely from the increasing of earnings by older workers. Those increases may come after your study period. I’ve seen other studies that indicate the highest paying jobs have grown more technical, take longer to learn, but pay more once learned. The increasing complexity of science comes to mind, which is often blamed for the slowdown in productivity. I suspect the same is true of most higher paying jobs. With all these comparisons, I’m never sure if every dollar of earnings (e.g., healthcare, retirement, etc.) has been included….”