The Competition Administration Department (CAD), an arm of the Ministry of Industry and Trade (MOIT), which conducted a survey on 10 business fields, has found out that oligopoly exists ... has shown ...

The theory assumes that even in a monopoly or oligopoly, incumbents will ... to encourage efficiency and discourage anti-competitive behavior. For example, regulators may force existing companies ...

in addition to looking at more traditional measures of anti-competitive behavior, like higher pricing. But how does an economist examine the impact of monopoly practices on the overall economy ...