That type is an updated version of one of these proposed by James Tobin after the collapse of the Bretton Woods system.
One type of these constructs named for Paul Spahn makes use of a "crawling peg" to identify and prevent abuse of currency markets. That type is an updated version of one of these proposed by James Tobin after the collapse of the Bretton Woods system. Henry George advocated eliminating all of these that were not based on the value of land. Assessment is important in the "ad valorem" type, and a type of these that corrects for negative externalities is named for Arthur Pigou. The "excess burden" of this phenomenon can lead to deadweight loss. For 10 points, name these economic constructs which can be regressive or progressive and which come in sales and income varieties.
One type of these constructs named for Paul Spahn makes use of a "crawling peg" to identify and prevent abuse of currency markets.
{taxes} [or {taxation}]