Foreign exchange reserves (also called forex reserves or FX reserves) are cash and other reserve assets such as gold and silver held by a central bank or other monetary authority that are primarily available to balance payments of the country, influence the foreign exchange rate of its currency, and to maintain confidence in financial markets. Reserves are held in one or more reserve currencies, nowadays mostly the United States dollar and to a lesser extent the euro.[1]
Foreign exchange reserves assets can comprise banknotes, bank deposits, and government securities of the reserve currency, such as bonds and treasury bills.[2] Some countries hold a part of their reserves in gold, and special drawing rights are also considered reserve assets. Often, for convenience, the cash or securities are retained by the central bank of the reserve or other currency and the "holdings" of the foreign country are tagged or otherwise identified as belonging to the other country without them actually leaving the vault of that central bank. From time to time they may be physically moved to the home or another country.
Normally, interest is not paid on foreign cash reserves, nor on gold holdings, but the central bank usually earns interest on government securities. The central bank may, however, profit from a depreciation of the foreign currency or incur a loss on its appreciation. The central bank also incurs opportunity costs from holding the reserve assets (especially cash holdings) and from their storage, security costs, etc.
Definition
Reserves of SDRs, forex and gold in 2006Foreign exchange reserves minus external debt in 2011
In a central bank's accounts, foreign exchange reserves are called reserve assets in the capital account of the balance of payments, and may be labeled as reserve assets under assets by functional category. In terms of financial assets classifications, reserve assets can be classified as gold bullion, unallocated gold accounts, special drawing rights, currency, reserve position in the IMF, interbank position, other transferable deposits, other deposits, debt securities, loans, stocks (listed and unlisted), investment fund shares and financial derivatives, such as forward contracts and options. There is no counterpart for reserve assets in liabilities of the International Investment Position. Usually, when the monetary authority of a country has some kind of liability, this will be included in other categories, such as Other Investments.[3] On a central bank's Balance sheet, foreign exchange reserves are assets, along with domestic credit.
Purpose
Currency composition of official foreign exchange reserves (2000-2019), in trillions of U.S. dollars
Typically, one of the critical functions of a country's central bank is reserve management, to ensure that the central bank has control over adequate foreign assets to meet national objectives. These objectives may include:
supporting and maintaining confidence in the national monetary and exchange rate management policies,
limiting external vulnerability to shocks during times of crisis or when access to borrowing is curtailed, and in doing so -
providing a level of confidence to markets,
demonstrating backing for the domestic currency,
assisting the government to meet its foreign exchange needs and external debt obligations, and
maintaining a reserve for potential national disasters or emergencies.[4]
Reserves assets allow a central bank to purchase the domestic currency, which is considered a liability for the central bank (since it prints the money or fiat currency as IOUs). Thus, the quantity of foreign exchange reserves can change as a central bank implements monetary policy,[5] but this dynamic should be analyzed generally in the context of the level of capital mobility, the exchange rate regime and other factors. This is known as trilemma or impossible trinity. Hence, in a world of perfect capital mobility, a country with fixed exchange rate would not be able to execute an independent monetary policy.
A central bank which chooses to implement 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) and thus the central bank would have to use reserves to maintain its fixed exchange rate. Under perfect capital mobility, the change in reserves is a temporary measure, since the fixed exchange rate attaches the domestic monetary policy to that of the country of the base currency. Hence, in the long term, the monetary policy has to be adjusted in order to be compatible with that of the country of the base currency. Without that, the country will experience outflows or inflows of capital. Fixed pegs were usually used as a form of monetary policy, since attaching the domestic currency to a currency of a country with lower levels of inflation should usually assure convergence of prices.
In a pure flexible exchange rate regime or floating exchange rate regime, the central bank does not intervene in the exchange rate dynamics; hence the exchange rate is determined by the market. Theoretically, in this case reserves are not necessary. Other instruments of monetary policy are generally used, such as interest rates in the context of an inflation targeting regime. Milton Friedman was a strong advocate of flexible exchange rates, since he considered that independent monetary (and in some cases fiscal) policy and openness of the capital account are more valuable than a fixed exchange rate. Also, he valued the role of exchange rate as a price. As a matter of fact, he believed that sometimes it could be less painful and thus desirable to adjust only one price (the exchange rate) than the whole set of prices of goods and wages of the economy, that are less flexible.[6]
Mixed exchange rate regimes ('dirty floats', target bands or similar variations) may require the use of foreign exchange operations to maintain the targeted exchange rate within the prescribed limits, such as fixed exchange rate regimes. As seen above, there is an intimate relation between exchange rate policy (and hence reserves accumulation) and monetary policy. Foreign exchange operations can be sterilized (have their effect on the money supply negated via other financial transactions) or unsterilized.
Non-sterilization will cause an expansion or contraction in the amount of domestic currency in circulation, and hence directly affect inflation and monetary policy. For example, to maintain the same exchange rate if there is increased demand, the central bank can issue more of the domestic currency and purchase foreign currency, which will increase the sum of foreign reserves. Since (if there is no sterilization) the domestic money supply is increasing (money is being 'printed'), this may provoke domestic inflation. Also, some central banks may let the exchange rate appreciate to control inflation, usually by the channel of cheapening tradable goods.
Since the amount of foreign reserves available to defend a weak currency (a currency in low demand) is limited, a currency crisis or devaluation could be the result. For a currency in very high and rising demand, foreign exchange reserves can theoretically be continuously accumulated, if the intervention is sterilized through open market operations to prevent inflation from rising. On the other hand, this is costly, since the sterilization is usually done by public debt instruments (in some countries Central Banks are not allowed to emit debt by themselves). 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. Besides that, the hypothesis that the world economy operates under perfect capital mobility is clearly flawed.
As a consequence, even those central banks that strictly limit foreign exchange interventions often recognize that currency markets can be volatile and may intervene to counter disruptive short-term movements (that may include speculative attacks). Thus, intervention does not mean that they are defending a specific exchange rate level. Hence, the higher the reserves, the higher is the capacity of the central bank to smooth the volatility of the Balance of Payments and assure consumption smoothing in the long term.
Reserve accumulation
After the end of the Bretton Woods system in the early 1970s, many countries adopted flexible exchange rates. In theory reserves are not needed under this type of exchange rate arrangement; thus the expected trend should be a decline in foreign exchange reserves. However, the opposite happened and foreign reserves present a strong upward trend. Reserves grew more than gross domestic product (GDP) and imports in many countries. The only ratio that is relatively stable is foreign reserves over M2.[7] Below are some theories that can explain this trend.
Theories
Signaling or vulnerability indicator
Credit risk agencies and international organizations use ratios of reserves to other external sector variables to assess a country's external vulnerability. For example, Article IV of 2013[8] uses total external debt to gross international reserves, gross international reserves in months of prospective goods and nonfactor services imports to broad money, broad money to short-term external debt, and short-term external debt to short-term external debt on residual maturity basis plus current account deficit. Therefore, countries with similar characteristics accumulate reserves to avoid negative assessment by the financial market, especially when compared to members of a peer group.
Precautionary aspect
Reserves are used as savings for potential times of crises, especially balance of payments crises. Original fears were related to the current account, but this gradually changed to also include financial account needs.[9] Furthermore, the creation of the IMF was viewed as a response to the need of countries to accumulate reserves. If a specific country is suffering from a balance of payments crisis, it would be able to borrow from the IMF. However, the process of obtaining resources from the Fund is not automatic, which can cause problematic delays especially when markets are stressed. Therefore, the fund only serves as a provider of resources for longer term adjustments. Also, when the crisis is generalized, the resources of the IMF could prove insufficient. After the 2008 crisis, the members of the Fund had to approve a capital increase, since its resources were strained.[10] Moreover, after the 1997 Asian crisis, reserves in Asian countries increased because of doubt in the IMF reserves.[11] Also, during the 2008 crisis, the Federal Reserve instituted currency swap lines with several countries, alleviating liquidity pressures in dollars, thus reducing the need to use reserves.
External trade
Countries engaging in international trade, maintain reserves to ensure no interruption. A rule usually followed by central banks is to hold in reserve at least three months of imports. Also, an increase in reserves occurred when commercial openness increased (part of the process known as globalization). Reserve accumulation was faster than that which would be explained by trade, since the ratio has increased to several months of imports. Furthermore, the ratio of reserves to foreign trade is closely watched by credit risk agencies in months of imports.
Financial openness
The opening of a financial account of the balance of payments has been important during the last decade. Hence, financial flows such as direct investment and portfolio investment became more important. Usually financial flows are more volatile that enforce the necessity of higher reserves. Moreover, holding reserves, as a consequence of the increasing of financial flows, is known as Guidotti–Greenspan rule that states a country should hold liquid reserves equal to their foreign liabilities coming due within a year. For example, international wholesale financing relied more on Korean banks in the aftermath of the 2008 crisis, when the Korean Won depreciated strongly, because the Korean banks' ratio of short-term external debt to reserves was close to 100%, which exacerbated the perception of vulnerability.[12]
Exchange rate policy
Reserve accumulation can be an instrument to interfere with the exchange rate. Since the first General Agreement on Tariffs and Trade (GATT) of 1948 to the foundation of the World Trade Organization (WTO) in 1995, the regulation of trade is a major concern for most countries throughout the world. Hence, commercial distortions such as subsidies and taxes are strongly discouraged. However, there is no global framework to regulate financial flows. As an example of regional framework, members of the European Union are prohibited from introducing capital controls, except in an extraordinary situation. The dynamics of China's trade balance and reserve accumulation during the first decade of the 2000 was one of the main reasons for the interest in this topic. Some economists are trying to explain this behavior. Usually, the explanation is based on a sophisticated variation of mercantilism, such as to protect the take-off in the tradable sector of an economy, by avoiding the real exchange rate appreciation that would naturally arise from this process. One attempt[13] uses a standard model of open economy intertemporal consumption to show that it is possible to replicate a tariff on imports or a subsidy on exports by closing the capital account and accumulating reserves. Another[14] is more related to the economic growth literature. The argument is that the tradable sector of an economy is more capital intense than the non-tradable sector. The private sector invests too little in capital, since it fails to understand the social gains of a higher capital ratio given by externalities (like improvements in human capital, higher competition, technological spillovers and increasing returns to scale). The government could improve the equilibrium by imposing subsidies and tariffs, but the hypothesis is that the government is unable to distinguish between good investment opportunities and rent-seeking schemes. Thus, reserves accumulation would correspond to a loan to foreigners to purchase a quantity of tradable goods from the economy. In this case, the real exchange rate would depreciate and the growth rate would increase. In some cases, this could improve welfare, since the higher growth rate would compensate the loss of the tradable goods that could be consumed or invested. In this context, foreigners have the role to choose only the useful tradable goods sectors.
Intergenerational savings
Reserve accumulation can be seen as a way of "forced savings". The government, by closing the financial account, would force the private sector to buy domestic debt for lack of better alternatives. With these resources, the government buys foreign assets. Thus, the government coordinates the savings accumulation in the form of reserves. Sovereign wealth funds are examples of governments that try to save the windfall of booming exports as long-term assets to be used when the source of the windfall is extinguished.
Costs
There are costs in maintaining large currency reserves. Fluctuations in exchange rates result in gains and losses in the value of reserves. In addition, the purchasing power of fiat money decreases constantly due to devaluation through inflation. Therefore, a central bank must continually increase the amount of its reserves to maintain the same power to manage exchange rates. Reserves of foreign currency may provide a small return in interest. However, this may be less than the reduction in purchasing power of that currency over the same period of time due to inflation, effectively resulting in a negative return known as the "quasi-fiscal cost". In addition, large currency reserves could have been invested in higher yielding assets.
Several calculations have been attempted to measure the cost of reserves. The traditional one is the spread between government debt and the yield on reserves. The caveat is that higher reserves can decrease the perception of risk and thus the government bond interest rate, so this measures can overstate the cost. Alternatively, another measure compares the yield in reserves with the alternative scenario of the resources being invested in capital stock to the economy, which is hard to measure. One interesting[7] measure tries to compare the spread between short term foreign borrowing of the private sector and yields on reserves, recognizing that reserves can correspond to a transfer between the private and the public sectors. By this measure, the cost can reach 1% of GDP to developing countries. While this is high, it should be viewed as an insurance against a crisis that could easily cost 10% of GDP to a country. In the context of theoretical economic models it is possible to simulate economies with different policies (accumulate reserves or not) and directly compare the welfare in terms of consumption. Results are mixed, since they depend on specific features of the models.
A case to point out is that of the Swiss National Bank, the central bank of Switzerland. The Swiss franc is regarded as a safe haven currency, so it usually appreciates during market's stress. In the aftermath of the 2008 crisis and during the initial stages of the Eurozone crisis, the Swiss franc (CHF) appreciated sharply. The central bank resisted appreciation by buying reserves. After accumulating reserves during 15 months until June 2010, the SNB let the currency appreciate. As a result, the loss with the devaluation of reserves just in 2010 amounted to CHF 27 Billion or 5% of GDP (part of this was compensated by the profit of almost CHF6 Billion due to the surge in the price of gold).[15] In 2011, after the currency appreciated against the Euro from 1.5 to 1.1, the SNB announced a ceiling at the value of CHF 1.2. In the middle of 2012, reserves reached 71% of GDP.
Official international reserves, the means of official international payments, formerly consisted only of gold, and occasionally silver. But under the Bretton Woods system, the US dollar functioned as a reserve currency, so it too became part of a nation's official international reserve assets. From 1944 to 1968, the US dollar was convertible into gold through the Federal Reserve System, but after 1968 only central banks could convert dollars into gold from official gold reserves, and after 1973 no individual or institution could convert US dollars into gold from official gold reserves. Since 1973, no major currencies have been convertible into gold from official gold reserves. Individuals and institutions must now buy gold in private markets, just like other commodities. Even though US dollars and other currencies are no longer convertible into gold from official gold reserves, they still can function as official international reserves.
Central banks throughout the world have sometimes cooperated in buying and selling official international reserves to attempt to influence exchange rates and avert financial crisis. For example, in the Baring crisis (the "Panic of 1890"), the Bank of England borrowed GBP2million from the Bank of France.[18] The same was true for the Louvre Accord and the Plaza Accord in the post gold-standard era.
Post Gold Standard Era
Historically, especially before the 1997 Asian financial crisis, central banks had rather meager reserves (by today's standards) and were therefore subject to the whims of the market, of which there was accusations of hot money manipulation, however Japan was the exception. In the case of Japan, forex reserves began their ascent a decade earlier, shortly after the Plaza Accord in 1985, and were primarily used as a tool to weaken the surging yen.[19] This effectively granted the United States a massive loan as they were almost exclusively invested in US Treasuries, which assisted the US to engage the Soviet Union in an arms race which ended with the latter's bankruptcy, and at the same time, turned Japan into the world's largest creditor and the US the largest debtor, as well as swelled Japan's domestic debt (Japan sold its own currency to fund the buildup of dollar based assets). By end of 1980, foreign assets of Japan were about 13% of GDP but by the end of 1989 had reached an unprecedented 62%.[19] After 1997, nations in East and Southeast Asia began their massive build-up of forex reserves, as their levels were deemed too low and susceptible to the whims of the market credit bubbles and busts. This build-up has major implications for today's developed world economy, by setting aside so much cash that was piled into US and European debt, investment had been crowded out, the developed world economy had effectively slowed to a crawl, giving birth to contemporary negative interest rates.[citation needed]
By 2007, the world had experienced yet another financial crisis, this time the US Federal Reserve organized central bank liquidity swaps with other institutions. Developed countries authorities adopted extra expansionary monetary and fiscal policies, which led to the appreciation of currencies of some emerging markets. The resistance to appreciation and the fear of lost competitiveness led to policies aiming to prevent inflows of capital and more accumulation of reserves. This pattern was called currency war by an exasperated Brazilian authority, and again in 2016 followed the commodities collapse, Mexico had warned China of triggering currency wars.[20]
Adequacy and excess reserves
The IMF proposed a new metric to assess reserves adequacy in 2011.[21] The metric was based on the careful analysis of sources of outflow during crisis. Those liquidity needs are calculated taking in consideration the correlation between various components of the balance of payments and the probability of tail events. The higher the ratio of reserves to the developed metric, the lower is the risk of a crisis and the drop in consumption during a crisis. Besides that, the Fund does econometric analysis of several factors listed above and finds those reserves ratios are generally adequate among emerging markets.[citation needed]
Reserves that are above the adequacy ratio can be used in other government funds invested in more risky assets such as sovereign wealth funds or as insurance to time of crisis, such as stabilization funds. If those were included, Norway, Singapore and Persian Gulf States would rank higher on these lists, and United Arab Emirates' estimated $627billion Abu Dhabi Investment Authority would be second after China. Apart from high foreign exchange reserves, Singapore also has significant government and sovereign wealth funds including Temasek Holdings (last valued at US$375billion) and GIC (last valued at US$440billion).[22]
ECN is a unique electronic communication network that links different participants of the Forex market: banks, centralized exchanges, other brokers and companies and private investors.
Special drawing rights are supplementary foreign exchange reserve assets defined and maintained by the International Monetary Fund (IMF). SDRs are units of account for the IMF, and not a currency per se. They represent a claim to currency held by IMF member countries for which they may be exchanged. SDRs were created in 1969 to supplement a shortfall of preferred foreign exchange reserve assets, namely gold and U.S. dollars. The ISO 4217 currency code for special drawing rights is XDR and the numeric code is 960.
A reserve currency is a foreign currency that is held in significant quantities by central banks or other monetary authorities as part of their foreign exchange reserves. The reserve currency can be used in international transactions, international investments and all aspects of the global economy. It is often considered a hard currency or safe-haven currency.
In finance, an exchange rate is the rate at which one currency will be exchanged for another currency. Currencies are most commonly national currencies, but may be sub-national as in the case of Hong Kong or supra-national as in the case of the euro.
The global financial system is the worldwide framework of legal agreements, institutions, and both formal and informal economic action that together facilitate international flows of financial capital for purposes of investment and trade financing. Since emerging in the late 19th century during the first modern wave of economic globalization, its evolution is marked by the establishment of central banks, multilateral treaties, and intergovernmental organizations aimed at improving the transparency, regulation, and effectiveness of international markets. In the late 1800s, world migration and communication technology facilitated unprecedented growth in international trade and investment. At the onset of World War I, trade contracted as foreign exchange markets became paralyzed by money market illiquidity. Countries sought to defend against external shocks with protectionist policies and trade virtually halted by 1933, worsening the effects of the global Great Depression until a series of reciprocal trade agreements slowly reduced tariffs worldwide. Efforts to revamp the international monetary system after World War II improved exchange rate stability, fostering record growth in global finance.
The 1997 Asian financial crisis was a period of financial crisis that gripped much of East and Southeast Asia during the late 1990s. The crisis began in Thailand in July 1997 before spreading to several other countries with a ripple effect, raising fears of a worldwide economic meltdown due to financial contagion. However, the recovery in 1998–1999 was rapid, and worries of a meltdown quickly subsided.
In international economics, the balance of payments of a country is the difference between all money flowing into the country in a particular period of time and the outflow of money to the rest of the world. In other words, it is economic transactions between countries during a period of time. These financial transactions are made by individuals, firms and government bodies to compare receipts and payments arising out of trade of goods and services.
The Bretton Woods system of monetary management established the rules for commercial relations among the United States, Canada, Western European countries, and Australia and other countries, a total of 44 countries after the 1944 Bretton Woods Agreement. The Bretton Woods system was the first example of a fully negotiated monetary order intended to govern monetary relations among independent states. The Bretton Woods system required countries to guarantee convertibility of their currencies into U.S. dollars to within 1% of fixed parity rates, with the dollar convertible to gold bullion for foreign governments and central banks at US$35 per troy ounce of fine gold. It also envisioned greater cooperation among countries in order to prevent future competitive devaluations, and thus established the International Monetary Fund (IMF) to monitor exchange rates and lend reserve currencies to nations with balance of payments deficits.
In economics, hot money is the flow of funds from one country to another in order to earn a short-term profit on interest rate differences and/or anticipated exchange rate shifts. These speculative capital flows are called "hot money" because they can move very quickly in and out of markets, potentially leading to market instability.
The Mexican peso crisis was a currency crisis sparked by the Mexican government's sudden devaluation of the peso against the U.S. dollar in December 1994, which became one of the first international financial crises ignited by capital flight.
The impossible trinity is a concept in international economics and international political economy which states that it is impossible to have all three of the following at the same time:
In macroeconomics and international finance, the capital account, also known as the capital and financial account, records the net flow of investment into an economy. It is one of the two primary components of the balance of payments, the other being the current account. Whereas the current account reflects a nation's net income, the capital account reflects net change in ownership of national assets.
A currency crisis is a type of financial crisis, and is often associated with a real economic crisis. A currency crisis raises the probability of a banking crisis or a default crisis. During a currency crisis the value of foreign denominated debt will rise drastically relative to the declining value of the home currency. Generally doubt exists as to whether a country's central bank has sufficient foreign exchange reserves to maintain the country's fixed exchange rate, if it has any.
The Triffin dilemma is the conflict of economic interests that arises between short-term domestic and long-term international objectives for countries whose currencies serve as global reserve currencies. This dilemma was identified in the 1960s by Belgian-American economist Robert Triffin, who noted how the country whose currency is the global reserve currency, that foreign nations wish to hold as foreign exchange (FX) reserves, must be willing to supply the world with an extra supply of its currency in order to fulfill world demand for these FX reserves, leading to a trade deficit.
The bancor was a supranational currency that John Maynard Keynes and E. F. Schumacher conceptualised in the years 1940–1942 and which the United Kingdom proposed to introduce after World War II. The name was inspired by the French banque or. This newly created supranational currency would then be used in international trade as a unit of account within a multilateral clearing system—the International Clearing Union—which would also need to be founded.
A sudden stop in capital flows is defined as a sudden slowdown in private capital inflows into emerging market economies, and a corresponding sharp reversal from large current account deficits into smaller deficits or small surpluses. Sudden stops are usually followed by a sharp decrease in output, private spending and credit to the private sector, and real exchange rate depreciation. The term "sudden stop" was inspired by a banker’s comment on a paper by Rüdiger Dornbusch and Alejandro Werner about Mexico, that "it is not speed that kills, it is the sudden stop."
Currency intervention, also known as foreign exchange market intervention or currency manipulation, is a monetary policy operation. It occurs when a government or central bank buys or sells foreign currency in exchange for its own domestic currency, generally with the intention of influencing the exchange rate and trade policy.
The 1991 Indian economic crisis was an economic crisis in India resulting from a balance of payments deficit due to excess reliance on imports and other external factors. India's economic problems started worsening in 1985 as imports swelled, leaving the country in a twin deficit: the Indian trade balance was in deficit at a time when the government was running on a huge fiscal deficit.
Domestic liability dollarization (DLD) refers to the denomination of banking system deposits and lending in a currency other than that of the country in which they are held. DLD does not refer exclusively to denomination in US dollars, as DLD encompasses accounts denominated in internationally traded "hard" currencies such as the British pound sterling, the Swiss franc, the Japanese yen, and the Euro.
Fear of floating is the hesitancy of a country to follow a floating exchange rate regime, rather than a fixed exchange rate. This is more relevant in emerging economies, especially when they suffered from financial crisis in the last two decades. In foreign exchange markets of the emerging market economies, there is evidence showing that countries who claim they are floating their currency, are actually reluctant to let the nominal exchange rate fluctuate in response to macroeconomic shocks. In the literature, this is first convincingly documented by Calvo and Reinhart with "fear of floating" as the title of one of their papers in 2000. Since then, this widespread phenomenon of reluctance to adjust exchange rates in emerging markets is usually called "fear of floating". Most of the studies on "fear of floating" are closely related to literature on costs and benefits of different exchange rate regimes.
1 2 Rodrik, Dani. "The social cost of foreign exchange reserves." International Economic Journal 20.3 (2006): 253-266.
↑ "Archived copy"(PDF). Archived(PDF) from the original on 8 September 2013. Retrieved 15 February 2013.{{cite web}}: CS1 maint: archived copy as title (link) Colombia2013 Article IV Consultation
↑ Bastourre, Diego, Jorge Carrera, and Javier Ibarlucia. "What is driving reserve accumulation? A dynamic panel data approach." Review of International Economics 17.4 (2009): 861–877.
↑ Jeanne, Olivier. "Capital Account Policies and the Real Exchange Rate." No. w18404. National Bureau of Economic Research, 2012.
↑ Korinek, Anton, and Luis Serven. "Undervaluation through foreign reserve accumulation: static losses, dynamic gains." World Bank Policy Research Working Paper Series, Vol (2010).
1 2 "Archived copy"(PDF). Archived(PDF) from the original on 6 October 2016. Retrieved 10 February 2016.{{cite web}}: CS1 maint: archived copy as title (link)
Eichengreen, Barry. Exorbitant Privilege: The Rise and Fall of the Dollar and the Future of the International Monetary System. Oxford University Press, USA, 2011.
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