空洞化

• Reading: くうどうか
• Romaji: kudoka
• Kanji breakdown: 空 (kū/kara) — empty, hollow; 洞 (dō) — cave, hollow; 化 (ka) — change, transform
• Pronunciation: /kɯː.doː.ka/

Meaning

Hollowing out; the process by which the core substance, industry, or population of something is removed, leaving an empty shell.

A noun (also する verb) used primarily in economic and regional planning contexts. 産業の空洞化 (industrial hollowing out) refers to the migration of manufacturing overseas, leaving domestic industries weakened — a major concern in Japan since the 1990s yen appreciation. Also used for 地方の空洞化 (regional depopulation) and 組織の空洞化 (organisational hollowing out when key personnel or functions are lost). The metaphor powerfully conveys the danger of outward form concealing inner emptiness.

Examples

1. 製造業の海外移転が進み、国内産業の空洞化が深刻な問題として浮上している。 As the relocation of manufacturing overseas progresses, the hollowing out of domestic industry has emerged as a serious problem.
2. 若者が都市に流出し続けることで、地方の空洞化はさらに加速するだろう。 With young people continuing to flow out to the cities, the hollowing out of rural areas will accelerate further.
3. 大企業が中小企業を傘下に収める過程で、地域経済の空洞化が進むと懸念される。 There are concerns that as large corporations bring smaller businesses under their umbrella, the hollowing out of regional economies will advance.

Usage Guide

Context: economics, regional policy, industry, demographics

Tone: negative

Origin & History

From 空洞 (hollow/cavity) and 化 (transformation). 空洞 literally means 'empty cavity,' making 空洞化 the process of becoming hollow — an apt economic metaphor coined in Japan as deindustrialisation became a national concern.

Cultural Context

Era: Modern

Generation: Adults

Social background: Universal