Z:gnu-www-ja-free-world--3f6c35-All niche markets for software/en

All niche markets for software rapidly evolve toward monopoly or an equilibrium where a small number of players tacitly agree not to mutually destroy their profits. (Established companies can defend their market share by reducing their prices to practically nothing, making price competition suicidal for newcomers.) However, there are cases of asymetrical competition, where a large company with other sources of income can destroy a smaller company that depends on a single niche revenue stream.