In English law, poundage was an ad valorem (in proportion to value) customs duty imposed on imports and exports at the rate of 1 shilling for every pound of goods imported or exported.
Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request. ### Instruction: List the MITRE techniques contained in the text. ### Input: In English law, poundage was an ad valorem (in proportion to value) customs duty imposed on imports and exports at the rate of 1 shilling for every pound of goods imported or exported. ### Response: .