noun
isolation paradise; closed paradise
Refers to a market or industry that thrives in isolation, often because of unique domestic products that face little or no foreign competition. Used in economic or cultural commentary.
日本のガラケー市場はパラダイス鎖国と呼ばれることがある。
Japan's feature phone market is sometimes called an isolation paradise.
パラダイス鎖国状態では、海外の競合が入りにくい。
In an isolation paradise state, foreign competitors find it hard to enter.