Global shares rise on upbeat data but COVID-19 spike dampens sentiment

NEW YORK (Reuters) - A global gauge of stock markets rose on Tuesday as investors continued to look for signs of an economic recovery while Treasury debt prices were little changed amid a fog of rising COVID-19 cases.The possible return of Libyan oil production, which has been down to a trickle since the start of the year, weighed on crude prices.World shares are down around 8% so far this year, having slumped 34% between Feb. 12 and March 23, but the world equity index is up 18% this quarter -..