1. Tesco buys Carrefour
With its shares up 30% in 2023, the British supermarket has staged a comeback from the wobbles of the past decade. It has solidified its iron grip on the British grocery market, restored profitability and started paying generous dividends again. With rivals such as Asda and Morrisons owned by private-equity firms overloaded with debt, its position is more secure than ever. By contrast, France’s giant Carrefour