寡占

1. Origins, structure, and basic meaning

• Structure: 寡占 is read as かせん and is an economic noun combining 寡 (few) and 占 (occupy), meaning market control by a small number of firms.
• Basic usage: Use 市場の寡占 for the structure and 少数の企業による寡占 for the firms creating it.

2. Common pitfalls and similar expressions

• Difference from 独占
  • 独占 is control by one firm or actor; 寡占 still has competitors, but only a very small number dominate.
• Structure and consequences
  • The market structure and its effect on price competition are separate; the word alone does not specify every consequence.