Former Fed Chairman Paul Volcker. AP/JOHN DURICKA

Every year, the biggest names in global central banking descend on the outskirts of the small Western town of Jackson, Wyoming, to discuss what they see as the most pressing issues in economics and interest-rate policy.

They will do so this week, starting Thursday, and this year's conference theme is "Fostering a Dynamic Global Economy."

But few people know the curious history of how Jackson Hole turned into a full-fledged media circus replete with Aspen-like interviews on financial television networks against the striking panorama of the Grand Teton mountains.

The origins of the conference are, well, fishy. That is, they have to do with fish, in particular the Fed Chairman Paul Volcker's predilection for fly-fishing. Before 1982, the Kansas City Fed's low-key, academic-leaning symposium was held in different parts of the Fed's 10th District.

Then came a small shift that would become permanent.

"The topic for the 1982 event was picked relatively early. The location was another matter," according to the Kansas City Fed's history of the conference.

"We worked pretty hard … and a lot of things happened," ex-Kansas City Fed official Barry Robinson explains in the internal history. "We looked at Santa Fe as a place where we could attract people in the summer … and we looked at places in Colorado."

That's where Volcker's fishing habits came into the picture. The organizers knew the conference's profile would be elevated if the Fed chair at the time were to attend.

"It was widely known that Fed Chairman Paul Volcker was fond of fly fishing, and Davis believed having Volcker at the first monetary policy symposium would be critical to the event's success," the Kansas City Fed says, referring to Tom Davis of the Kansas City Fed.

"Davis called a contact in Colorado, because he knew there were popular fishing locations in that state. 'I said we need a place for our next symposium (where) people can fish for trout.' He gave it some thought and he said, 'What time of year are you going to hold it?'"

Davis suggested August. "Well, if you're going to hold it in August, you can't fish for trout in Colorado (because) it's too warm. You need to go someplace north," his contact said. They settled on Jackson Hole, a place Davis had never even heard of.

"The real test for the new location, of course, would be the invitation to Volcker."

Volcker accepted the invitation, though he had not been there previously. Apparently the fishing was good, because the conference continued to be held in the same place for the remainder of Volcker's tenure — and on through Alan Greenspan, Ben Bernanke, and, now, Janet Yellen.

To this day, some Fed officials go fly-fishing around the time of the conference. Volcker, now 89, no longer attends.