Businesses have sophisticated technology to monitor online behaviour, collect information about shopping habits and websites visited, and the services consumers have looked at.

BBC: Online shopping technology faces OFT focus

In a separate development, the Met Police said it had responded to a number of incidents of anti-social behaviour in the Oxford Street shopping area and that some arrests had been made.

BBC: Anti-austerity marches take place

And, judging by its recent behaviour, Bank of New York does not want to be on anybody else's shopping list.

ECONOMIST: Buy, buy