The world price of a ton of steel is $1000. Before Russia allowed trade in steel, the price of a ton of steel there was $650. Once Russia allowed trade in steel with other countries, Russia begana. exporting steel and the price per ton in Russian remained at $650b. exporting steel and the price per ton increased to $1000.c. importing steel and the price per ton in Russia remained at $650d. importing steel and the price per ton in Russia increased to $1000.