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.
More top news
Research has found that moving a few miles out of London could save you a fortune in property prices.
The Foreign Office have said they have contacted the Ethiopian authorities numerous times about the case to no avail.