Speaking to LBC 97.3 radio presenter, Nick Ferrari, Mr Johnson said trade was "patchy", but claimed the Games were "overwhelmingly for the benefit of the city". He added:
If you look at the spend by tourists in the city, it was up overall. The economic impact of the Games is estimated to be massively positive.
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The work, called Gift Horse, replaces the giant blue cockerel that previously sat on the plinth.
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