Russia's banks have practically emptied their stash of yuan, largely because Chinese financial firms are spooked from doing business with the nation. Lenders have urged Russia's central bank to address a yuan liquidity shortage in the nation, with insiders saying that access to the Chinese currency was running dry, Reuters reported. Russia's ruble dropped nearly 5% against the yuan earlier this week, Reuters noted. The drop came shortly after Russia's finance ministry suggested the Central Bank of Russia would shrink its daily yuan sales, with central bankers selling just $200 million a day, down from the $7.3 billion sold daily...