Wealthy nations have been hit by inflation but the way this has changed grocery shopping culture – and governments’ responses – vary

• Read more from Guardian Australia’s The cost of eating series

A handful of multinational names may dominate high street fashion and fast food around the world, but when it comes to grocery shopping, every country has their own chains and their own quirks. While it is not uncommon for the supermarket landscape to be dominated by a few major players, Australia’s duopoly – and the lack of regulatory response – is unusual. Here, reporters in seven countries share the ins and outs of essential shopping in their parts of the world.