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The Marshall-Edgeworth index, credited to Marshall (1887) and Edgeworth (1925), [11] is a weighted relative of current period to base period sets of prices. This index uses the arithmetic average of the current and based period quantities for weighting. It is considered a pseudo-superlative formula and is symmetric. [12]
Import ratio, in economics and government finance, is the ratio of total imports of a country to that country’s total foreign exchange (FX) reserves. [1] The ratio can be inverted and is referred to as the reserves to imports ratio. This ratio divides a country's average foreign exchange reserve by a country's average monthly level of imports ...
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.
Index numbers are used especially to compare business activity, the cost of living, and employment. They enable economists to reduce unwieldy business data into easily understood terms. In contrast to a cost-of-living index based on the true but unknown utility function, a superlative index number is an index number that can be calculated. [1]
In economics, the "J curve" is the time path of a country’s trade balance following a devaluation or depreciation of its currency, under a certain set of assumptions. A devalued currency means imports are more expensive, and on the assumption that the volumes of imports and exports change little at first, this causes a fall in the current ...
Movements of price indexes from one month to another usually should be expressed as percent changes, rather than as changes in index points, because the latter are affected by the level of the index in relation to its base period, while the former are not. Each index measures price changes from a reference period defined to equal 100.0.
The exact definition of imports in national accounts includes and excludes specific "borderline" cases. [10] Importation is the action of buying or acquiring products or services from another country or another market other than own.
The openness Index is an economic metric calculated as the ratio of a country's total trade, the sum of exports plus imports, to the country's gross domestic product. [ 1 ] = (Exports + Imports)/(Gross Domestic Product) [ 2 ]