Game of Thrones has been a massively popular, highly polished production for nearly a decade. Now that the entire show is done (and presumably all production has been definitively billed), I'm curious about the total cost of its production. A teaser trailer for the behind-the-scenes documentary airing next week suggested that, at least in the final seasons, each episode cost as much as a major feature film to produce. I'm primarily wondering how much economic activity the show itself generated.
I am specifically interested in the costs related to making the show, once actual production of show-specific elements began (so, I'm willing to ignore things like the cost of licensing the franchise from GRRM, and am not interested in costs associated with things like manufacturing merchandise or producing spin-off video games).
But any costs like staffing, travel, permitting, advertising for the show itself, or things like that are what I'm looking for. I'm open to any estimates available, as long as they are clear about what types of costs they are considering or leaving out.