BANGKOK: Thailand’s central bank kept its benchmark interest rate unchanged and lowered its economic growth forecast for this year and next as the country grapples with its biggest wave of Covid cases yet. The Bank of Thailand held the policy rate at a record low of 0.5% yesterday for a ninth straight meeting in a unanimous decision, as expected by all 25 economists in a Bloomberg survey. The country’s vaccination campaign will be key to economic recovery, Bank of Thailand assistant governor Tit