Groceries are an essential purchase and a major expense for most households in New Zealand. Competition is a key driver of price, quality, range, and service offered by grocers in New Zealand. Back in March, the Commerce Commission published its final report on the market study into New Zealand's retail grocery sector, and that report found that competition was not working well for consumers in New Zealand, with excess profits estimated conservatively at $1 million a day accruing to the duopoly, straight out of Kiwi's pockets—a million dollars a day every day over a period of some time.