With low oil prices and EU sanctions hitting the Russian economy hard, the country’s currency the rouble tumbled to a record low against the U.S. dollar on Tuesday. Interventions by Moscow, including a steep hike in interest rates, have led to a slight recovery on Wednesday, though trading was still described as volatile. Given that some 4 percent of the Czech Republic’s exports go to Russia, what impact could the rouble’s problems have on the Czech economy?