Michael Birnbaum, the Post, Moscow bureau chief talks to experts and politicians in Moscow about the economic situation as the ruble declines by 36% since July, with the fall in oil prices accelerating its fall and reducing the impact of central bank intervention in slowing the decline. He cites a Putin interview with Tass news agency in Nov. which he says a tieup is possible between the U.S. and Saudi Arabia to bring down oil prices as a way to strengthen the effect of sanctions in changing Russian policy. Russian Finance minister Anton Siluanov says lost oil revenue impact is about $90 to $100 billion a year, added to the cost of sanctions at $40 billion. Significant capital flight also adds to the overall cost. Russian companies borrowing in dollars have large debt payments due that will need to be supported by the Russian government, an added cost. This will put the Russian economy in recession in 2015. The central bank expects inflaion at 10% in 2015. Large losses of this magnitude will be harder to sustain and deplete international reserves of $429 billion as of Oct. 2014. The thinking of ordinary Russians is reflected in an independent Levada Center opinion poll showing 61% of Russians expecting a decline in living standards and economic crisis in the near future. The man most responsible for stabilizing Russia's finances, former finance minister Alexei Kudrin, who had profound public disagreements with president Medvedev over increases in the military budget, warned of an economic crisis following the parliamentary and presidential elections. A major weakness of the Putin-Medvedev second and third terms is the failure to use higher oil revenues to expand the tech sector and other industries to diversify Russian exports away from oil. ...