Korea’s AI Boom Faces Demographic Drag: Can Wealth Trickle Down?

(SeaPRwire) –   By: Christian Pierce

South Korea is a standout winner in the AI boom, home to giants like Samsung Electronics and SK Hynix, the world’s top memory chip makers. Chip workers are pocketing bonuses around $400,000, and the KOSPI has soared nearly 60% this year. But a Goldman Sachs report paints a cautionary picture: all this wealth might not reach ordinary households.

Even as chip demand drives Korean exports and factory investments to new heights, retail sales remain near 2019 levels. Goldman labels this a “K-shaped cycle”—corporate balance sheets are flourishing, but private consumption is stagnant. The root cause? South Korea is aging too rapidly.

The country boasts one of the world’s lowest fertility rates, with just 0.8 births per woman last year, far below the 2.1 rate needed to stabilize population. Twenty percent of Koreans are over 65. Postwar baby boomers are retiring just as the fertility rate stays below replacement level, shrinking the pool of working-age people supporting the elderly. The UN projects Korea’s dependency ratio—children and elderly relative to working-age population—to jump 1.5 percentage points annually over the next decade, the fastest pace among 70 large and midsized economies analyzed by Goldman, surpassing even Japan’s peak aging period from 2000 to 2015.

Korea’s retirement problem is compounded by unusual saving habits. In Japan, Taiwan, and the U.S., retirees typically draw down savings, but Koreans don’t. Goldman finds Koreans in their sixties save 37% of their income, and those in their seventies save at rates similar to people in their forties. Korean household net worth is heavily tied to non-financial assets like real estate—over 60%, the highest among advanced economies studied by Goldman. Financial assets held by Korean households amount to just 100% of the country’s 2024 GDP, the lowest in the sample. This leaves retirees asset-rich but cash-poor. Fewer than one-fourth of elderly households can cover consumption needs with financial assets. When incomes decline, Koreans are more likely to cut spending or work longer rather than liquidate assets. Reverse mortgages cover only 1.8% of homeowners over 75, reflecting a strong desire to leave assets to heirs.

In contrast, Taiwan, another AI boom winner, sees stronger consumption from older consumers despite similar aging pressures. Taiwanese households have net financial assets five times GDP, compared to Korea’s one times GDP.

The economic impact of excessive saving is stark. Goldman estimates a 1 percentage point increase in the dependency ratio reduces real private consumption growth by about 3 basis points in major economies. In Korea, the hit is 10 to 17 basis points. One model suggests Korea’s fast-aging population could shave 25 basis points from annual consumption growth over the next decade. Even if Korea maintains 2% economic growth over two decades, consumption growth could eventually turn negative.

Korea has tried boosting birth rates with measures like marriage grants and matchmaking events, but even a radical rise in fertility won’t help in the near term—babies born now won’t enter the workforce for at least 20 years. Immediate solutions are needed: helping elderly Koreans unlock housing wealth and better distributing windfalls from the country’s super-profitable tech firms.

Author bio: Christian Pierce, chief financial columnist with decades of experience dissecting global market trends and economic shifts, offering sharp insights into financial and demographic dynamics.