This week's central bank meetings could test policymakers' resolve. And in a week packed with central bank meetings, she added that markets were "right to fret." By Dhara Ranasinghe LONDON, Sept 20 (Reuters) - Soaring gas prices that threaten to push up winter fuel bills, hurt consumption and exacerbate a near-term spike in inflation are another blow to a world economy just getting back on its feet after the coronavirus shock.