Mary was reviewing the documentation provided by her firm's freight forwarder. She noticed, as she reviewed the figures for the latest shipments to Pakistan, that tariffs had been calculated differently than she was used to. It seemed that a dollar amount was levied up to 100,000 tons and that the Pakistani government levied a charge of 5% of the shipments' value on amounts over 100,000 tons. Mary called the freight forwarder for an explanation and was told that Pakistan used _______________ tariffs.

Specific

Countervailing

Complex

Ad valorem

Compound