The approach News Today of business to general elections is not what it was.

Not that long ago, it was common for big corporates to make donations to political parties, including big FTSE 100 names such as SmithKline Beecham, United Biscuits, General Accident and Whitbread.

Most of these donations would go to the Conservatives but there were some companies, such as Marks & Spencer and Pearson, which also made donations to other parties.

Some, such as Hanson - whose founder Lord Hanson was a loyal supporter of Margaret Thatcher - continued to do so even after the 1992 Cadbury Report recommended companies stop making contributions to political parties.