Greenspan: Oil Price Surge Not Big Issue WASHINGTON - This year's surge in energy prices is likely to have far less of an impact on the economy than the oil shocks of the 1970s, Federal Reserve Chairman Alan Greenspan said Friday.    Greenspan predicted that the global economy will adjust to the recent surge in prices, which has seen oil topping \$50 per barrel, by boosting energy exploration and production and by increasing fuel efficiency...