Best of Times, Worst of Times: How to invest amidst the K-shaped polarization in Asia

Research evidence excerpt

Best of Times, Worst of Times: How to invest amidst the K-shaped polarization in Asia

3 July 2026

Asia Quantitative Strategy

Best of Times, Worst of Times: How to invest amidst the K-

shaped polarization in Asia

“It was the best of times, it was the worst of times”. The famous opening line of Charles Rupal Agarwal

+65 6326 7641 Dickens’ ‘A Tale of Two Cities’ captures a period of contradiction: the French aristocracy

rupal.agarwal@bernsteinsg.com indulging in opulence and privilege, the peasantry experiencing poverty and oppression.

While 2026 is thankfully not 18th century France, shifting class dynamics remain more

Cheng Zhang, CFA, CQF topical than ever. In this note, we examine the K-shaped dynamics seen in four major North

+852 2123 2636

cheng.zhang@bernsteinsg.com Asian economies and its investment implications.

K-shaped dynamics led by income inequality. China stands out as the most

extreme case of divergence: Japan’s K-shape is led by stagnation at the bottom end.

The top income quintile accounts for 42% of total income pie vs. 6% for the bottom 20%.

Korea shows a sharper income gap, with top-quintile income of KRW11.9mn/month vs.

KRW1.3mn at the bottom, leaving the top group with 43.8% of income pool against only

4.7% for the bottom. In both KR/JP, the bottom cohort spends 51% on essentials like

food, housing, utilities vs. 31%-37% by top group. Taiwan’s divergence is meaningful but

more sector-driven, with the top quintile earning 6x more than the bottom quintile, helped

by tech-sector compensation rising to NTD95k/month vs. industry average of NTD63k.

However, China is materially worse, with the top income quintile earning roughly 10x more

vs. the bottom quintile, visible more in rural (10x) than urban dispersion (6x).