Barclays economists adjusted their forecasts for Fed policy based on June inflation data and a gradual cooling in the labour market this week, and now see a second rate cut in December on top of September's cut. "We also believe that the FOMC's growing belief in the restrictive stance of monetary policy should further persuade the FOMC to cut rates in September and December," Barclays economists Marc Giannini and Jonathan Millar said in a research note.