Trade measures include measures to promote exports and to reduce imports.
1. Export Promotion
Exports may be encouraged by
i) reducing or abolishing export duties,
ii) providing export subsidy,
iii) encouraging export production by giving monetary, fiscal, physical and institutional incentives. (Then local people and domestic industries would suffer)
2. Import Control
Imports may be controlled by
i) imposing or enhancing import duties,
ii) restricting imports through import quotas,
iii) licensing and even prohibiting altogether the import of certain non- essential items. But this would encourage smuggling.

1. There are two countries, two commodities and two factors. (2 x 2 x 2 model).
2. Countries differ in factor endowments.
3. Commodities are categorized in terms of factor intensity.
4. Countries use same production technology.
5. Countries have identical demand conditions.
6. There is perfect competition in both product and factor markets in both the countries.

Factors determining exchange rates are,
(i) Differentials in Inflation
(ii) Differential in Interest rates
(iii) Current Account Deficits
(iv) Public Debt
(v) Terms of Trade
(vi) Political and Economic Stability
(vii) Recession
(viii) Speculation

FDI has the following objectives.
(i) Sales Expansion
(ii) Acquisition of resources
(iii) Diversification
(iv) Minimization of competitive risk

Also known as floating exchange rate, the exchange rates are freely determined in an open market by market forces of demand and supply.

(i) It is a trade restriction that sets a limit on the quantity of a good that can be imported into a country in a given period of time.
(ii) Quotas are used to benefit the producers of good in that economy.

Net Barter Terms of Trade
1. This was developed by Taussig in 1927.
2. The ratio between the prices of exports and of imports is called net barter terms of trade.
3. Viner calls it commodity terms of trade.
4. \(\mathrm{T}_{\mathrm{n}}=\left(\mathrm{P}_{\mathrm{x}} / \mathrm{P}_{\mathrm{m}}\right) \times 100\)
5. Tn is Net Barter Terms of Trade
6. Px is Index number of export prices
7. Pm is Index number of import prices
8. This measures the gain from International Trade.
9. If T_n is greater than 100, it is terms of trade which means that for a rupee of export, more of imports can be received by a country.
Gross Barter Terms of Trade
1. Developed by Taussig in 1927 as an improvement over the net terms of trade.
2. It is an index of relationship between total physical quantity of imports and the total physical quantity of exports.
\(\mathrm{Tg}=\left(\mathrm{Q}_{\mathrm{m}} / \mathrm{Q}_{\mathrm{x}}\right) \times 100\)
3. Q_m is Index of import quantities
4. Q_x is Index of export quantities
5. If for a given quantity of export, more quantity of import can be consumed by a country, the terms of trade are favourable.

Pure Theory of Trade
(i) This component explains the causes for foreign trade, composition, direction and volume of trade, determination of the terms of trade and exchange rate, issues related to balance of trade and balance of payments.
Policy Issues
(i) Policy issues such as free trade vs. protection, methods of regulating trade, capital and technology flows, use of taxation, subsidies and dumping, exchange control and convertibility, foreign aid, external borrowings and foreign direct investment, measures of correcting disequilibrium in BoP are covered.
International Cartels and Trade Blocs
(i) Economic integration, cartels, customs unions, monetary unions, trade blocs, economic unions and multinational corporation are covered
International Financial and Trade Regulatory Institutions
(i) Financial institutions like IMF, IBRD, WTO are part of International Economics.