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Car manufacturers, energy groups, consumer goods firms and other multinationals are taking care to minimise risks by placing cash reserves in safe investments and controlling non-essential expenditure. Siemens, the engineering group, has even established its own bank in order to deposit funds with the European Central Bank.

Some are examining expert advice on the legal consequences of a eurozone split for cross-border commercial contracts and loan agreements. By contrast, most small and medium-sized firms have made few, if any financial and legal preparations.