Trade among nations takes place for the same reasons that it does within a nation: to obtain goods a...: ответ на тест 1006994 - Английский язык

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Trade among nations takes place for the same reasons that it does within a nation: to obtain goods and services that a region could not produce itself, or to obtain them at a lower cost than they could be produced for at home. This is explained by the principle of comparative advantage, which states that as long as the opportunity costs to produce items differ between two nations, both will profit by specializing in those things that they produce most efficiently and exchanging their surpluses. Despite the many advantages of international trade, most nations have been erecting artificial barriers to the trade for ages. These barriers are usually in the form of tariffs or quotas.

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Trade among nations takes place for the same reasons that it does within a nation: to obtain goods and services that a region could not produce itself, or to obtain them at a lower cost than they could be produced for at home. This is explained by the principle of comparative advantage, which states that as long as the opportunity costs to produce items differ between two nations, both will profit by specializing in those things that they produce most efficiently and exchanging their surpluses. Despite the many advantages of international trade, most nations have been erecting artificial barriers to the trade for ages. These barriers are usually in the form of tariffs or quotas.

Imports must be paid for in a currency that is acceptable to the seller. In order to facilitate these transactions, there is a market for the currencies of all trading nations. The selling price of one nation’s currency in terms of the currencies of other nations is known as its “exchange rate”. Exchange rates fluctuate in accordance with the laws of supply and demand.
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Certificates of deposit pay the highest rates of interest offered by banks and savings institutions. They require the money to be left on deposit for a specified period of time that can run from a few weeks to five or more years. The money can be withdrawn early, if necessary, but not without a penalty.
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How long can the period of time for deposit run?

US savings bonds can be purchased at most savings institutions. Guaranteed by the United States government, they are one of the safest investments one can make. Since 1986 the bonds pay no less than 6 percent interest when held for five years. After five years bonds earn a variable rate adjusted every six months.
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Where can the US savings bonds be purchased?

There exist two types of collections. Collections may be documentary or clean. The documentary collection is the collection of commercial documents or the collection of financial documents together with commercial documents.
The collection of only financial documents is called clean. Commercial documents are: invoices, bills of lading, waybills and certificates. Financial documents are: promissory notes, bills of exchange, cheques and payment receipts.
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What is the clean collection?