From energy to water, from Aberdeen Airport to the Port of Plymouth, the UK’s infrastructure assets have been going through a second privatisation in the years since the financial crisis.

In the 1980s, many of these assets were sold to the public as part of integrated utility companies listed on the London Stock Exchange. Then Prime Minister Margaret Thatcher was in her pomp, and the "share-owning democracy" was the future. But it hasn't worked out quite like that.