From 1h agoIntroduction: Fed's Kevin Warsh prepares for Jackson Hole speech with inflation top of the agendaGood morning, and welcome to our rolling coverage of the global economy, the financial markets, business and the global economy.All eyes are on a mountain valley in Wyoming today, as central bankers and economists gather close to Yellowstone national park for a top-level symposium.Inflation, and the bond market, is top of the agenda at the annual Federal Reserve symposium at Jackson Hole this year, as the Iran war puts pressure on the global economy.Jackson Hole has been dubbed the Davos for central bankers, and today the financial markets are bracing for a speech from the world’s most powerful central bank chief, Kevin Warsh, at 3pm UK time (10am Eastern).Warsh is under pressure to provide clarity on how the Federal Reserve, which he leads, should deal with inflation if price pressures don’t abate. Last month he created uncertainty by suggesting that the markets, not the Fed, should take the lead on tightening financial conditions.But investors also hope to hear Warsh’s view on the recent interference in the bond markets by Treasury secretary Scott Bessent, who has been trying to push down US long-term borrowing costs by buying long-dated bonds.Besssent’s move appears to put the Treasury on a collision course with the Fed - lower borrowing costs will spice up the economy, undermining the battle against inflation.Ipek Ozkardeskaya, senior analyst at Swissquote, says the stakes are high for Warsh’s speech, for three reasons: