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  2. Revealed comparative advantage - Wikipedia

    en.wikipedia.org/wiki/Revealed_comparative_advantage

    It most commonly refers to an index, called the Balassa index, introduced by Béla Balassa (1965). [1] In particular, the revealed comparative advantage of country c {\displaystyle c} in product/commodity/good p {\displaystyle p} is defined by:

  3. World Integrated Trade Solution - Wikipedia

    en.wikipedia.org/wiki/World_Integrated_Trade...

    The World Integrated Trade Solution (WITS) is a trade software provided by the World Bank for users to query several international trade databases.. WITS allows the user to query trade statistics (export, import, re-exports and re-imports) from the UN's repository of official international trade statistics and relevant analytical tables (UN COMTRADE), tariff and non-tariff measures data from ...

  4. Edward Ullman - Wikipedia

    en.wikipedia.org/wiki/Edward_Ullman

    He proposed that trade was an interaction based on three phenomena: complementarity, intervening opportunities, and transferability of commodities. The level of interaction can be measured by the Gravity model of trade: , =, Where:

  5. Grubel–Lloyd index - Wikipedia

    en.wikipedia.org/wiki/Grubel–Lloyd_index

    If GL i = 1, there is a good level of intra-industry trade. This means for example the Country in consideration Exports the same quantity of good i as much as it Imports. Conversely, if GL i = 0, there is no intra-industry trade at all.

  6. Foreign trade of the United States - Wikipedia

    en.wikipedia.org/wiki/Foreign_trade_of_the...

    The authority of Congress to regulate international trade is set out in the United States Constitution (Article I, Section 8, Paragraph 1): . The Congress shall have power To lay and collect Taxes, Duties, Imposts and Excises, to pay the Debts and provide for the common Defence and to promote the general Welfare of the United States; but all Duties, Imposts and Excises shall be uniform ...

  7. Terms of trade - Wikipedia

    en.wikipedia.org/wiki/Terms_of_trade

    Terms of trade (TOT) is a measure of how much imports an economy can get for a unit of exported goods. For example, if an economy is only exporting apples and only importing oranges, then the terms of trade are simply the price of apples divided by the price of oranges — in other words, how many oranges can be obtained for a unit of apples.

  8. Supermodular function - Wikipedia

    en.wikipedia.org/wiki/Supermodular_function

    In mathematics, a supermodular function is a function on a lattice that, informally, has the property of being characterized by "increasing differences." Seen from the point of set functions, this can also be viewed as a relationship of "increasing returns", where adding more elements to a subset increases its valuation.

  9. History of tariffs in the United States - Wikipedia

    en.wikipedia.org/wiki/History_of_tariffs_in_the...

    Currently only about 30% of all import goods are subject to tariffs in the United States, the rest are on the free list. The "average" tariffs now charged by the United States are at a historic low. The list of negotiated tariffs are listed on the Harmonized Tariff Schedule as put out by the United States International Trade Commission. [104]