Foreign exchange reserves
Foreign Exchange


Foreign exchange reserves (also called Forex reserves) in a strict sense are only the foreign currency deposits held by central banks and monetary authorities. However, the term foreign exchange reserves in popular usage commonly includes foreign exchange and gold, SDRs and IMF reserve position as this total figure is more readily available, however it is accurately deemed as official reserves or international reserves. These are assets of the central banks which are held in different reserve currencies such as the dollar, euro and yen, and which are used to back its liabilities, e.g. the local currency issued, and the various bank reserves deposited with the central bank, by the government or financial institutions.


History
Reserves were formerly held only in gold, as official gold reserves. But under the Bretton Woods system, the United States pegged the dollar to gold, and allowed convertibility of dollars to gold. This effectively made dollars appear as good as gold. The U.S. later abandoned the gold standard, but the dollar has remained relatively stable as a fiat currency, and it is still the most significant reserve currency. Central banks now typically hold large amounts of multiple currencies in reserve.

Purpose
In a non fixed exchange rate system, reserves allow a central bank to purchase the issued currency, exchanging its assets to reduce its liability. The purpose of reserves is to allow central banks an additional means to stabilise the issued currency from excessive volatility, and protect the monetary system from shock, such as from currency traders engaged in flipping. Large reserves are often seen as a strength, as it indicates the backing a currency has. Low or falling reserves may be indicative of an imminent bank run on the currency or default, such as in a currency crisis.
Central banks sometimes claim that holding large reserves is a security measure. This is true to the extent that a central bank can prop up its own currency by spending reserves. (This practice is essentially large-scale manipulation of the global currency market. Central banks have sometimes attempted this in the years since the 1971 collapse of the Bretton Woods system. A few times, multiple central banks have cooperated to attempt to manipulate exchange rates. It is unclear just how effective the practice is.) But often, very large reserves are not a hedge against inflation but rather a direct consequence of the opposite policy: the bank has purchased large amounts of foreign currency in order to keep its own currency relatively cheap.

Changes in reserves
The quantity of foreign exchange reserves can change as a central bank implements monetary policy. A central bank that implements a fixed exchange rate policy may face a situation where supply and demand would tend to push the value of the currency lower or higher (an increase in demand for the currency would tend to push its value higher, and a decrease lower). In a fixed exchange rate regime, these operations occur automatically, with the central bank clearing any excess demand or supply by purchasing or selling the foreign currency. Mixed exchange rate regimes ('dirty floats', target bands or similar variations) may require the use of foreign exchange operations (sterilized or unsterilized) to maintain the targeted exchange rate within the prescribed limits.
Foreign exchange operations that are unsterilized will cause an expansion or contraction in the amount of domestic currency in circulation, and hence directly affect monetary policy and inflation: "An exchange rate target cannot be independent of an inflation target. Countries that do not target a specific exchange rate are said to have a floating exchange rate, and allow the market to set the exchange rate; for countries with floating exchange rates, other instruments of monetary policy are generally preferred and they may limit the type and amount of foreign exchange interventions. Even those central banks that stricly limit foreign exchange interventions, however, often recognize that currency markets can be volatile and may intervene to counter disruptive short-term movements.
To maintain the same exchange rate if there is increased demand, the central bank can issue more of the domestic currency and purchase the foreign currency, which will increase the sum of foreign reserves. In this case, the currency's value is being held down; since (if there is no sterilization) the domestic money supply is increasing (money is being 'printed'), this may provoke domestic inflation (the value of the domestic currency falls relative to the value of goods and services).
To maintain the same exchange rate if there is decreased demand, the central bank can purchase the domestic currency using its foreign reserves, effectively removing the domestic currency from circulation; the total foreign exchange reserves will fall. If there is no sterilization, the domestic money supply is also falling, which will tend to restrain domestic inflation (the value of the domestic currency rises relative to the value of goods and services).
Since the amount of foreign reserves available to defend a weak currency (a currency in low demand) is limited, a foreign exchange crisis or devaluation could be the end result. For a currency in very high and rising demand, foreign exchange reserves can theoretically be continuously accumulated, although eventually the increased domestic money supply will result in inflation and reduce the demand for the domestic currency (as its value relative to goods and services falls). In practice, "Some central banks, through open market operations aimed at preventing their currency from appreciating, can at the same time build substantial reserves.
In practice, few central banks or currency regimes operate on such a simplistic level, and numerous other factors (domestic demand, production and productivity, imports and exports, relative prices of goods and services, etc) will affect the eventual outcome. As certain impacts (such as inflation) can take many months or even years to become evident, changes in foreign reserves and currency values in the short term may be quite large as different markets react to imperfect data.

Costs and benefits
On one hand, if a country desires to have a government-influenced exchange rate, then holding bigger reserves gives the country a bigger ability to manipulate the currency market. On the other hand, holding reserves does induce opportunity cost. The "quasi-fiscal costs" of holding reserves are the gap between the low-yield assets that returns managers typically hold, and the average cost of government debt in the country. In addition, many governments have suffered huge losses on the management of the reserves portfolio - all of which is ultimately fiscal. When there is a currency crisis and all reserves vanish, this is ultimately a fiscal cost. Even when there is no currency crisis, there can be a fiscal cost, as is taking place in 2005 and 2006 with China, which holds huge USD assets but the RMB has been continually appreciating.

Excess Reserves
Foreign exchange reserves are important indicators of ability to repay foreign debt and for currency defense, and are used to determine credit ratings of nations, however, other government funds that are counted as liquid assets that can be applied to liabilities in times of crisis include stabilization funds. If those were included, Norway and Persian Gulf States would rank higher on these lists, and UAE's $875 billion Abu Dhabi Investment Authority would be third after Japan and China. Singapore also has significant government funds including Temasek Holdings and GIC. India is also planning to create its own investment firm from its forex reserves.

Levels

Reserves of foreign exchange and gold in 2006
At the end of 2004, 66% of the identified official foreign exchange reserves in the world were held in United States dollars and 25% in euros [1].
Monetary Authorities with the largest foreign reserves in 2007.
Rank
Country/Monetary Authority
billion USD (end of month)

People's Republic of China
$1434 (September) [1]

Japan
$946 (September)
—
Eurozone
$453 (August)

Russia
$434 (October 12)
4
Republic of China (Taiwan)
$263 (September)

South Korea
$257 (September)

India
$251 (October 5)

Brazil
$162 (October 10)

Singapore
$152 (September)

Hong Kong
$141 (September)

Germany
$117 (August)
Note:
^ China updates its information quarterly.
^ Russia updates its information weekly and monthly.
^ India updates its information weekly.
^ Brazil updates its information Daily.
These few holders account for more than 50% of total world foreign currency reserves. The adequacy of the foreign exchange reserves is more often expressed not as an absolute level, but as a percentage of short-term foreign debt, money supply, or average monthly imports.

Balance of trade


The balance of trade encompasses the activity of exports and imports, like the work of this cargo ship going through the Panama Canal.
The balance of trade (or net exports, sometimes symbolized as NX) is the difference between the monetary value of exports and imports in an economy over a certain period of time. A positive balance of trade is known as a trade surplus and consists of exporting more than is imported; a negative balance of trade is known as a trade deficit or, informally, a trade gap. The balance of trade is sometimes divided into a goods and a services balance; especially in the United Kingdom the terms visible and invisible balance are used.

Definition
The balance of trade forms part of the current account, which also includes other transactions such as income from the international investment position as well as international aid. If the current account is in surplus, the country's net international asset position increases correspondingly. Equally, a deficit decreases the net international asset position.
The trade balance is identical to the difference between a country's output and its domestic demand (the difference between what goods a country produces and how many goods it buys from abroad; this does not include money re-spent on foreign stocks, nor does it factor the concept of importing goods to produce for the domestic market).
Measuring the balance of payments can be problematic because of problems with recording and collecting data. As an illustration of this problem, when official data for all the world's countries are added up, exports exceed imports by a few percent; it appears the world is running a positive balance of trade with itself. This cannot be true, because all transactions involve an equal credit or debit in the account of each nation. The discrepancy is widely believed to be explained by transactions intended to launder money or evade taxes, smuggling and other visibility problems. However, especially for developed countries, accuracy is likely to be good.
Factors that can affect the balance of trade figures include:
Prices of goods manufactured at home (influenced by the responsiveness of supply)
Exchange rates
Trade agreements or barriers
Other tax, tariff and trade measures
Business cycle at home or abroad.
The balance of trade is likely to differ across the business cycle. In export led growth (such as oil and early industrial goods), the balance of trade will improve during an economic expansion. However, with domestic demand led growth (as in the United States and Australia) the trade balance will worsen at the same stage in the business cycle.

Economic impact
Modern economists are split on the economic impact of the trade deficit with some viewing it as a loss in a fixed volume of trade and more radical Neoliberal voices who claim it is a sign of economic strength.
The traditional view opposes long run trade deficits and outsourcing for the sake of labor arbitrage to obtain cheap labor as an example of absolute advantage which does not produce mutual gain, and not an example of comparative advantage which does.
Neoliberal economists claim that trade deficits are beneficial, noting the correlation between increasing trade deficits and increasing GDP and employment . An expanding economy means increased demand for domestic and foreign products. This rising demand promotes domestic investment as both foreign and domestic businesses seek to capitalize on the growth in demand. As the rate of growth accelerates foreign credit sources have greater incentives to invest in a growing nation's capital. The greater net inflows from abroad, the greater the trade deficit. Thus, GDP growth can be correlated with a trade deficit.
Strong GDP growth economies such as the United Kingdom, Australia, Hong Kong and the United States run consistent trade deficits.
GDP growth may be due to excess borrowing to fund consumption and not an expansion of the base of an economy. Developed nations such as Canada, Japan, and Germany typically run trade surpluses. China also has a trade surplus. A higher savings rate generally corresponds with a trade surplus. In 2006, the United States has its lowest savings rate since 1933.Correspondingly, the United States has high trade deficits. The general decline of Great Britain is another example of the deleterious effects of long term trade deficits.
Some contend long term effects of the trade deficits are deleterious. Since the stagflation of the 1970s, the U.S. economy has been characterized by somewhat slower growth. In 1985, the U.S. began its growing trade deficit with China. In 2006, the primary economic concerns have centered around: high national debt ($9 trillion), high corporate debt ($9 trillion), high mortgage debt ($9 trillion), high unfunded Medicare liability ($30 trillion), high unfunded Social Security liability ($12 trillion), high external debt (amount owed to foreign lenders) and a serious deterioration in the United States net international investment position (NIIP) (-24% of GDP),high trade deficits, and a rise in illegal immigration. These issues have raised concerns among economists and unfunded liabilites were mentioned as a serious problem facing the United States in the President's 2006 State of the Union address.
Large imbalances may sometimes be a sign of underlying economic problems or rigidities. An example would be a situation where exchange rates have been fixed or pegged for political reasons at levels impeding a correction of a trade imbalance.
The trade deficit must be "financed" by foreign income or transfers, or by a capital account surplus. This includes inward foreign investment and capital purchases (stocks, bonds ect). An increase in net foreign liabilities tends to lead to an increase in the net outflow of income on international investments.
Those in favor of the trade deficit point to this financing as the source of the benefit. Instead of buying goods back, buyers in the receiving country send the money back in the form of capital. A firm in America sends dollars for Chinese toys, and the Chinese receivers use the money to buy stock in an American firm. Although this is a form of financing, it is not a debt on any party in America.
Such payments to foreigners have intergenerational effects: by shifting consumption over time, some generations may gain at the expense of others . However, a trade deficit may lead to higher consumption in the future if, for example, it is used to finance profitable domestic investment, which generates returns in excess of that paid on the net foreign liabilities (a situation that might arise if a country experiences an unexpected gain in productivity). Similarly, a surplus on the current account implies an increase in the net international investment position and the shifting of consumption to future rather than current generations.
However, trade imbalances are not always indicative of the smooth operation of the market given differences in international productivity and intertemporal consumption preferences. Trade deficits have often been associated with a loss of international competitiveness, or unsustainable 'booms' in domestic demand. Similarly, trade surpluses have been associated with policies that inefficiently bias a country's economic activity towards external demand, resulting in lower living standards. An example of an economy which has had a positive balance of payments was Japan in the 1990s. The positive balance was partly the result of protectionist measures that brought excessive profits to Japanese exporters