The US government is gearing up to investigate whether Amazon, Apple, Facebook and Google misuse their massive market power.

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Commodity giant Glencore’s head of oil Alex Beard is to retire, the second top executive to leave the trading group as it fights to resolve a US investigation into possible bribery and corruption.

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Grocery giant Waitrose has unveiled its vision of environmentally conscious shopping, offering customers the chance to buy food and drink that is completely free of packaging as part of a ground-breaking trial.