Mr. Iran sinks with oil’s prices

Change in the White House looms as Washington’s political class senses that the old adversary Iran is more open to pressure. There is a tempting parallel with the collapse of the Soviet Union, when a period of high oil prices encouraged the Communist state to overextend fiscally and politically, making it vulnerable when prices fell. A timely IMF Regional Economic Outlook, released in October, calculated Iran needs an average annual oil price above $90 per barrel (on the fund’s own benchmark) to avoid a budget deficit in 2008. Ramin Pashaifam, an Iranian central bank vice governor, said last month the economy faced “big problems” if Iranian oil — typically selling 10% under the main benchmarks — remained below $60 per barrel for the rest of the Iranian year. The falling price of oil — remember it was near $150 in July — is a serious challenge for President Mahmoud Ahmadinejad,