English said the Government was also mindful of past decisions by the commission and also the Labour Greens policy around electricity.
"These things are not connected but they could create a picture of New Zealand having an uncertain investment environment. We'd prefer it to be predictable."
However he dismissed suggestions the Government planned to limit the commission's independence.
"It's really just a matter of checking that our legislative frameworks that we use for ensuring monopolies are under control and ensuring that we have good competition are as good as we always thought they were."
English confirmed that investors had raised concerns about this country's regulatory environment following the Chorus decision.
Labour's finance spokesman David Parker said the review sounded like sour grapes on the part of the Government following the commission's copper pricing ruling.
"Any time the big end of town gets into trouble this Government rushes to their aid", he said.
"We think that it's appropriate that we have an independent Commerce Commission to protect the interests of consumers.
"The Commerce Commission has a proper role to limit monopoly excess. Monopolies do what monopolies can and they extract excessive prices from consumers if they're not properly regulated. We absolutely need an independent Commerce Commission to property control monopoly excess including from the likes of Chorus."