In response to changing Soviet policies, Washington’s...

In response to changing Soviet policies, Washington’s largest law firm announced a new U.S.-Soviet effort to encourage joint economic ventures in the Soviet Union. Officials of the Arnold & Porter law firm said their affiliate company, APCO Associates, would work with INFEKS, a Soviet cooperative, to help arrange the ventures. They said U.S. companies in food processing, pollution control, medical equipment and other industries already have expressed interest. APCO President Margery Kraus said the firm would open a Moscow office early next year.