The OECD has released its detailed biennial report on New Zealand's economy, ahead of the 2024 Budget.

It lays out suggestions to improve productivity - highlighting competition.

NZ Herald Wellington business editor Jenee Tibshraeny says the OECD thinks the Government could more aggressively break up monopolies and duopolies, like supermarkets.

"It did recognise that, in a small country like New Zealand, we have some of these big players dominating key sectors. They have such control over the market - that does stymie the innovation."

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