
Show Notes
All the parties this election are promising action to bring down the price of groceries. So whose plan is best? Economist Geoff Bertram joins Ollie Neas to explain how New Zealand ended up with one of the most concentrated supermarket industries in the world, how the duopoly exercises its market power over suppliers and consumers, and what the competing election policies would mean in practice. Support independent journalism: Help us keep producing in-depth conversations like this at publicinterest.nz 00:00 Introduction – Whose supermarket policy is best?01:33 Why competition doesn't always keep prices down06:30 How New Zealand ended up with a supermarket duopoly12:30 Are monopolies inevitable in a small country?17:00 How supermarkets gained their market power22:00 How supermarkets squeeze suppliers and smaller competitors30:42 Are supermarket profit margins really that small?32:15 Three approaches to fixing the supermarket sector36:24 ACT – Removing barriers to competition40:39 National and NZ First – Breaking up Foodstuffs48:40 Labour – Separating wholesale from retail54:49 Greens – Establishing a publicly owned Kiwi Mart1:03:35 The Opportunity Party's approach1:04:25 Which supermarket policy would work best?1:04:38 Why Geoff Bertram wants to overhaul the Commerce Act1:08:30 Could public ownership make butter and cheese cheaper?
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