Russian equities trading in New York fell for a third day, the longest slide in a month, as clashes in eastern Ukraine added to speculation that the U.S. and Europe will step up economic sanctions against the Kremlin. Photographer: Andrey Rudakov/Bloomberg Gazprom , Russia’s state controlled gas exporter, has said attempts by Brussels to crack down on its pricing model will backfire — and trigger higher average energy costs across Europe. Alexei Miller, chief executive, issued the warning on Monday as the European Union prepares a landmark antitrust case over accusations that Gazprom overcharged customers in eastern Europe. Brussels is also drawing up plans […]