Apart from arms, Washington wants to restrict imports of certain technologies, communications equipment and some other goods.
In the past, the mere announcement of American plans to retaliate was enough to restrict imports.
American officials have said Russia's concerns are nonsense and part of a protectionist attempt to restrict imports.
Congress threatens legislation to restrict imports unless Japan opens its markets.
Industry officials also acknowledge that restricting imports could hurt American consumers.
One more reason they are investing locally is that the Chinese government restricts foreign imports to 20 movies a year.
As the Japanese share of the market increased, to 21.8% in 1981, pressures rose to restrict imports from Japan.
Why are you restricting imports only for the first quarter of 1997?
The United States today called for an end to the privileges given developing countries through most of the postwar period to restrict imports.
Canada is not alone in restricting intellectual imports from the United States.