by Andréa BAMBINO Agence France Presse New York, United States (AFP) — An art collection is tipped to break the $1 billion barrier at auction for the first time when Christie’s sells works belonging to late Microsoft co-founder Paul Allen this week. The two-day sale in New York comes as experts say the super wealthy are viewing art as a safe investment this year amid a tumultuous global economy and Russia’s war in Ukraine. Allen […]