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The terms of trade (TOT) is the relative price of exports in terms of imports[1] and is defined as the ratio of export prices to import prices.[2] It can be interpreted as the amount of import goods an economy can purchase per unit of export goods.

An improvement of a nation's terms of trade benefits that country in the sense that it can buy more imports for any given level of exports. The terms of trade may be influenced by the exchange rate because a rise in the value of a country's currency lowers the domestic prices of its imports but may not directly affect the prices of the commodities it exports.

## History

The expression terms of trade was first coined by the US American economist Frank William Taussig in his 1927 book International Trade. However, an earlier version of the concept can be traced back to the English economist Robert Torrens and his book The Budget: On Commercial and Colonial Policy, published in 1844, as well as to John Stuart Mill's essay Of the Laws of Interchange between Nations; and the Distribution of Gains of Commerce among the Countries of the Commercial World, published in the same year, though allegedly already written in 1829/30.

## Definition

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. Since economies export and import many goods, measuring the TOT requires defining price indices for exported and imported goods and comparing the two.[3]

A rise in the prices of exported goods in international markets would increase the TOT, while a rise in the prices of imported goods would decrease it. For example, countries that export oil will see an increase in their TOT when oil prices go up, while the TOT of countries that import oil would decrease.

## Two country model CIE economics

In the simplified case of two countries and two commodities, terms of trade is defined as the ratio of the total export revenue[clarification needed] a country receives for its export commodity to the total import revenue it pays for its import commodity. In this case, the imports of one country are the exports of the other country. For example, if a country exports 50 dollars' worth of product in exchange for 100 dollars' worth of imported product, that country's terms of trade are 50/100 = 0.5. The terms of trade for the other country must be the reciprocal (100/50 = 2). When this number is falling, the country is said to have "deteriorating terms of trade". If multiplied by 100, these calculations can be expressed as a percentage (50% and 200% respectively). If a country's terms of trade fall from say 100% to 70% (from 1.0 to 0.7), it has experienced a 30% deterioration in its terms of trade. When doing longitudinal (time series) calculations, it is common to set a value for the base year[citation needed] to make interpretation of the results easier.

In basic microeconomics, the terms of trade are usually set in the interval between the opportunity costs for the production of a given good of two nations.

Terms of trade is the ratio of a country's export price index to its import price index, multiplied by 100. The terms of trade measures the rate of exchange of one good or service for another when two countries trade with each other.

## Multi-commodity multi-country model

Frank William Taussig in his 1927 book International Trade. However, an earlier version of the concept can be traced back to the English economist Robert Torrens and his book The Budget: On Commercial and Colonial Policy, published in 1844, as well as to John Stuart Mill's essay Of the Laws of Interchange between Nations; and the Distribution of Gains of Commerce among the Countries of the Commercial World, published in the same year, though allegedly already written in 1829/30.

## Definition

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. Since economies export and import many goods, measuring the TOT requires defining price indices for exported and imported goods and comparing the two.[3]

A rise in the prices of exported goods in international markets would increase the TOT, while a rise in the prices of imported goods would decrease it. For example, countries that export oil will see an increase in their TOT when oil prices go up, while the TOT of countries that import oil would decrease.

## Two country model CIE economics

In the simplified case of two countries and two commodities, terms of trade is defined as the ratio of the total export revenue[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. Since economies export and import many goods, measuring the TOT requires defining price indices for exported and imported goods and comparing the two.[3]

A rise in the prices of exported goods in international markets would increase the TOT, while a rise in the prices of imported goods would decrease it. For example, countries that export oil will see an increase in their TOT when oil prices go up, while the TOT of countries that import oil would decrease. <

A rise in the prices of exported goods in international markets would increase the TOT, while a rise in the prices of imported goods would decrease it. For example, countries that export oil will see an increase in their TOT when oil prices go up, while the TOT of countries that import oil would decrease.

In the simplified case of two countries and two commodities, terms of trade is defined as the ratio of the total export revenue[clarification needed] a country receives for its export commodity to the total import revenue it pays for its import commodity. In this case, the imports of one country are the exports of the other country. For example, if a country exports 50 dollars' worth of product in exchange for 100 dollars' worth of imported product, that country's terms of trade are 50/100 = 0.5. The terms of trade for the other country must be the reciprocal (100/50 = 2). When this number is falling, the country is said to have "deteriorating terms of trade". If multiplied by 100, these calculations can be expressed as a percentage (50% and 200% respectively). If a country's terms of trade fall from say 100% to 70% (from 1.0 to 0.7), it has experienced a 30% deterioration in its terms of trade. When doing longitudinal (time series) calculations, it is common to set a value for the base year[citation needed] to make interpretation of the results easier.

In basic microeconomics, the terms of trade are usually set in the interval between the opportunity costs for the production of a given good of two nations.

Terms of trade is the ratio of a country's export price index to its import price index, multiplied by 100. The terms of trade measures the rate of e

In basic microeconomics, the terms of trade are usually set in the interval between the opportunity costs for the production of a given good of two nations.

Terms of trade is the ratio of a country's export price index to its import price index, multiplied by 100. The terms of trade measures the rate of exchange of one good or service for another when two countries trade with each other.

In the more realistic case of many products exchanged between many countries, terms of trade can be calculated using a Laspeyres index. In this case, a nation's terms of trade is the ratio of the Laspeyre price index of exports to the Laspeyre price index of imports. The Laspeyre export index is the current value of the base period exports divided by the base period value of the base period exports. Similarly, the Laspeyres import index is the current value of the base period imports divided by the base period value of the base period imports.