"Term limits foster competition and bring new blood into government," she said.

Existing taxi companies may try to limit competition by potential new entrants.

A need for different size housing also limits competition.

Oil companies have denied working in collusion to limit competition.

"Maybe the reason the churches worked to shut businesses was to limit competition."

The rules work to limit competition, keep foreigners out of the market and keep prices high.

Some nonprofit groups were concerned that the combination might limit competition among vendors.

Other factors that limit competition include the existence of cartels.

"We are mainly interested in opportunities that show a lot of promise but have limited competition," he said.

On the one hand we have limited competition as a result of the lack of a single European market.