estimates that royal tourism directly and indirectly contributes about 1.8bn every year to the UK economy
Those figures derive from reports by Brand Finance which is a brand valuation firm. There are strong links with the royals (BF got a royal warrant shortly before their 2017 report and various bigwigs were I think - memory a bit hazy - at the time associated with royal gong and cloak orders)
There is no clarity on who if anyone commissioned these reports and therefore no clarity on whether an agenda is being promoted.
If Graham Smith's figures are to be greeted with scepticism it's only fair to look at the opposition too.