A BOJ spokesman comments on the matter
The fact that Wakatabe will be attending was a bit of a giveaway but this officially confirms it. Either way, it's not going to make for much I reckon. A lot of the focus on the Jackson Hole symposium will come down to economics and market concerns at the moment.
In other words, expect a lot of talk on emerging markets and central bank policies between the attendees but very little substance to float to the surface from said discussions.
