Government debt, also known as public interest, public debt, national debt and sovereign debt,contrasts to the annual government budget deficit, which is a flow variable that equals the difference between government receipts and spending in a single year. The debt is a stock variable, measured at a specific point in time, and it is the accumulation of all prior deficits.
Debt is when something, usually money, is owed by one party, the borrower or debtor, to a second party, the lender or creditor. Debt is a deferred payment, or series of payments, that is owed in the future, which is what differentiates it from an immediate purchase. The debt may be owed by sovereign state or country, local government, company, or an individual. Commercial debt is generally subject to contractual terms regarding the amount and timing of repayments of principal and interest. Loans, bonds, notes, and mortgages are all types of debt. The term can also be used metaphorically to cover moral obligations and other interactions not based on economic value. For example, in Western cultures, a person who has been helped by a second person is sometimes said to owe a "debt of gratitude" to the second person.
Government debt can be categorized as internal debt (owed to lenders within the country) and external debt (owed to foreign lenders). Another common division of government debt is by duration until repayment is due. Short term debt is generally considered to be for one year or less, and long term debt is for more than ten years. Medium term debt falls between these two boundaries. A broader definition of government debt may consider all government liabilities, including future pension payments and payments for goods and services which the government has contracted but not yet paid.
Internal debt or domestic debt is the part of the total government debt in a country that is owed to lenders within the country. Internal debt's complement is external debt. Commercial banks, other financial institutions etc. constitute the sources of funds for the internal debts
External loan is the total debt a country owes to foreign creditors; its complement is internal debt which is owed to domestic lenders. The debtors can be the government, corporations or citizens of that country. The debt includes money owed to private commercial banks, other governments, or international financial institutions such as the International Monetary Fund (IMF) and World Bank. Note that the use of gross liability figures greatly distorts the ratio for countries which contain major money centers such as the United Kingdom due to London's role as a financial capital. Contrast with net international investment position.
Governments create debt by issuing government bonds and bills. Less creditworthy countries sometimes borrow directly from a supranational organization (e.g. the World Bank) or international financial institutions.
A government bond or sovereign bond is a bond issued by a national government, generally with a promise to pay periodic interest payments called coupon payments and to repay the face value on the maturity date. The aim of a government bond is to support government spending. Government bonds are usually denominated in the country's own currency, in which case the government cannot be forced to default, although it may choose to do so. If a government is close to default on its debt the media often refer to this as a sovereign debt crisis.
The World Bank is an international financial institution that provides loans and grants to the governments of poorer countries for the purpose of pursuing capital projects. It comprises two institutions: the International Bank for Reconstruction and Development (IBRD), and the International Development Association (IDA). The World Bank is a component of the World Bank Group.
Financial institutions, otherwise known as banking institutions, are corporations that provide services as intermediaries of financial markets. Broadly speaking, there are three major types of financial institutions:
In a monetarily sovereign country such as the United States of America, the United Kingdom and most other countries, government debt held in the home currency are merely savings accounts held at the central bank. In this way this "debt" has a very different meaning to the debt acquired by households who are restricted by their income. Monetarily sovereign governments issue their own currencies and do not need this income to finance spending.
The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a sovereign country located off the north-western coast of the European mainland. The United Kingdom includes the island of Great Britain, the north-eastern part of the island of Ireland, and many smaller islands. Northern Ireland is the only part of the United Kingdom that shares a land border with another sovereign state, the Republic of Ireland. Apart from this land border, the United Kingdom is surrounded by the Atlantic Ocean, with the North Sea to the east, the English Channel to the south and the Celtic Sea to the south-west, giving it the 12th-longest coastline in the world. The Irish Sea separates Great Britain and Ireland. The United Kingdom's 242,500 square kilometres (93,600 sq mi) were home to an estimated 66.0 million inhabitants in 2017.
A central government with its own currency can pay for its nominal spending by creating money ex novo, although typical arrangements leave money creation to central banks. In this instance, a government issues securities to the public not to raise funds, but instead to remove excess bank reserves (caused by government spending that is higher than tax receipts) and '...create a shortage of reserves in the market so that the system as a whole must come to the [central] Bank for liquidity.'
Fiat money is a currency without intrinsic value that has been established as money, often by government regulation. Fiat money does not have use value, and has value only because a government maintains its value, or because parties engaging in exchange agree on its value. It was introduced as an alternative to commodity money and representative money. Commodity money is created from a good, often a precious metal such as gold or silver, which has uses other than as a medium of exchange. Representative money is similar to fiat money, but it represents a claim on a commodity.
Bank reserves are a commercial bank's cash holdings, that are physically held by the bank, and deposits held in the bank's account with the central bank. Under the fractional-reserve banking system used in most countries, central banks typically set minimum reserve requirements that require commercial banks under its purview to hold cash or deposits at the central bank equivalent to at least a prescribed percentage of their liabilities, such as customer deposits. Such sums are usually termed required reserves, and any funds above the required amount are called excess reserves. These reserves are prescribed to ensure that, in the normal events, there is sufficient liquidity in the banking system to provide funds to bank customers wishing to withdraw cash. Even when there are no reserve requirements, banks often as a matter of prudent management hold reserves in case of unexpected events, such as unusually large net withdrawals by customers or bank runs. In general, banks do not earn any interest on its reserves. Funds in banks that are not retained as a reserve are available to be lent, at interest.
During the Early Modern era, European monarchs would often default on their loans or arbitrarily refuse to pay them back. This generally made financiers wary of lending to the king and the finances of countries that were often at war remained extremely volatile.
The creation of the first central bank in England—an institution designed to lend to the government—was initially an expedient by William III of England for the financing of his war against France. He engaged a syndicate of city traders and merchants to offer for sale an issue of government debt. This syndicate soon evolved into the Bank of England, eventually financing the wars of the Duke of Marlborough and later Imperial conquests.
The establishment of the bank was devised by Charles Montagu, 1st Earl of Halifax, in 1694, to the plan which had been proposed by William Paterson three years before, but had not been acted upon.He proposed a loan of £1.2m to the government; in return the subscribers would be incorporated as The Governor and Company of the Bank of England with long-term banking privileges including the issue of notes. The Royal Charter was granted on 27 July through the passage of the Tonnage Act 1694.
The founding of the Bank of England revolutionised public finance and put an end to defaults such as the Great Stop of the Exchequer of 1672, when Charles II had suspended payments on his bills. From then on, the British Government would never fail to repay its creditors.In the following centuries, other countries in Europe and later around the world adopted similar financial institutions to manage their government debt.
In 1815, at the end of the Napoleonic Wars, British government debt reached a peak of more than 200% of GDP.
In 2018, the global government debt reached the equivalent of $66 trillion, or about 80% of global GDP.
A government bond is a bond issued by a national government. Such bonds are most often denominated in the country's domestic currency. Sovereigns can also issue debt in foreign currencies: almost 70% of all debt in 2000 was denominated in US dollars.Government bonds are sometimes regarded as risk-free bonds, because national governments can if necessary create money de novo to redeem the bond in their own currency at maturity. Although many governments are prohibited by law from creating money directly (that function having been delegated to their central banks), central banks may provide finance by buying government bonds, sometimes referred to as monetizing the debt.
Government debt, synonymous to sovereign debt,can be issued either in domestic or foreign currencies. Investors in sovereign bonds denominated in foreign currency have exchange rate risk: the foreign currency might depreciate against the investor's local currency. Sovereigns issuing debt denominated in a foreign currency may furthermore be unable to obtain that foreign currency to service debt. In the 2010 Greek debt crisis, for example, the debt is held by Greece in Euros, and one proposed solution (advanced notably by World Pensions Council (WPC) financial economists) is for Greece to go back to issuing its own drachma. This proposal would only address future debt issuance, leaving substantial existing debts denominated in what would then be a foreign currency, potentially doubling their cost
This article or section may contain misleading parts.October 2015)(
Public debt is the total of all borrowing of a government, minus repayments denominated in a country's home currency. CIA's World Factbook lists only the percentages of GDP; the total debt and per capita amounts have been calculated in the table below using the GDP (PPP) and population figures of the same report.
A debt-to-GDP ratio is one of the most accepted ways of assessing the significance of a nation's debt. For example, one of the criteria of admission to the European Union's euro currency is that an applicant country's debt should not exceed 60% of that country's GDP. However it should be considered that the GDP definition of many leading industrial countries include taxes like i.e. the Value-added tax in there Calculation which increase the total value of the Gross domestic product.
|% of GDP||per capita (USD)||% of world public debt|
* US data exclude debt issued by individual US states, as well as intra-governmental debt; intra-governmental debt consists of Treasury borrowings from surpluses in the trusts for Federal Social Security, Federal Employees, Hospital Insurance (Medicare and Medicaid), Disability and Unemployment, and several other smaller trusts; if data for intra-government debt were added, "Gross Debt" would increase by about one-third of GDP. The debt of the United States over time is documented online at the Department of the Treasury's website TreasuryDirect.Govas well as current totals.
Municipal, provincial, or state governments may also borrow. Municipal bonds, "munis" in the United States, are debt securities issued by local governments (municipalities).
In 2016, U.S. state and local governments owed $3 trillion and have another $5 trillion in unfunded liabilities.
Governments often borrow money in a currency in which the demand for debt securities is strong. An advantage of issuing bonds in a currency such as the US dollar, the pound sterling, or the euro is that many investors wish to invest in such bonds. Countries such as the United States, Germany, Italy and France have only issued in their domestic currency (or in the Euro in the case of Euro members).
Relatively few investors are willing to invest in currencies that do not have a long track record of stability. A disadvantage for a government issuing bonds in a foreign currency is that there is a risk that it will not be able to obtain the foreign currency to pay the interest or redeem the bonds. In 1997 and 1998, during the Asian financial crisis, this became a serious problem when many countries were unable to keep their exchange rate fixed due to speculative attacks.
Although a national government may choose to default for political reasons, lending to a national government in the country's own sovereign currency is generally considered "risk free" and is done at a so-called "risk-free interest rate". This is because the debt and interest can be repaid by raising tax receipts (either by economic growth or raising tax revenue), a reduction in spending, or by creating more money. However, it is widely considered that this would increase inflation and thus reduce the value of the invested capital (at least for debt not linked to inflation). This has happened many times throughout history, and a typical example of this is provided by Weimar Germany of the 1920s, which suffered from hyperinflation when the government massively printed money, because of its inability to pay the national debt deriving from the costs of World War I.
In practice, the market interest rate tends to be different for debts of different countries. An example is in borrowing by different European Union countries denominated in euros. Even though the currency is the same in each case, the yield required by the market is higher for some countries' debt than for others. This reflects the views of the market on the relative solvency of the various countries and the likelihood that the debt will be repaid. Further, there are historical examples where countries defaulted, i.e., refused to pay their debts, even when they had the ability of paying it with printed money. This is because printing money has other effects that the government may see as more problematic than defaulting.
A politically unstable state is anything but risk-free as it may—being sovereign—cease its payments. Examples of this phenomenon include Spain in the 16th and 17th centuries, which nullified its government debt seven times during a century, and revolutionary Russia of 1917 which refused to accept the responsibility for Imperial Russia's foreign debt.Another political risk is caused by external threats. It is mostly uncommon for invaders to accept responsibility for the national debt of the annexed state or that of an organization it considered as rebels. For example, all borrowings by the Confederate States of America were left unpaid after the American Civil War. On the other hand, in the modern era, the transition from dictatorship and illegitimate governments to democracy does not automatically free the country of the debt contracted by the former government. Today's highly developed global credit markets would be less likely to lend to a country that negated its previous debt, or might require punishing levels of interest rates that would be unacceptable to the borrower.
U.S. Treasury bonds denominated in U.S. dollars are often considered "risk free" in the U.S. This disregards the risk to foreign purchasers of depreciation in the dollar relative to the lender's currency. In addition, a risk-free status implicitly assumes the stability of the US government and its ability to continue repayments during any financial crisis.
Lending to a national government in a currency other than its own does not give the same confidence in the ability to repay, but this may be offset by reducing the exchange rate risk to foreign lenders. On the other hand, national debt in foreign currency cannot be disposed of by starting a hyperinflation;[ citation needed ] and this increases the credibility of the debtor. Usually small states with volatile economies have most of their national debt in foreign currency. For countries in the Eurozone, the euro is the local currency, although no single state can trigger inflation by creating more currency.
Lending to a local or municipal government can be just as risky as a loan to a private company, unless the local or municipal government has sufficient power to tax. In this case, the local government could to a certain extent pay its debts by increasing the taxes, or reduce spending, just as a national one could. Further, local government loans are sometimes guaranteed by the national government, and this reduces the risk. In some jurisdictions, interest earned on local or municipal bonds is tax-exempt income, which can be an important consideration for the wealthy.
Public debt clearing standards are set by the Bank for International Settlements, but defaults are governed by extremely complex laws which vary from jurisdiction to jurisdiction. Globally, the International Monetary Fund can take certain steps to intervene to prevent anticipated defaults. It is sometimes criticized for the measures it advises nations to take, which often involve cutting back on government spending as part of an economic austerity regime. In triple bottom line analysis, this can be seen as degrading capital on which the nation's economy ultimately depends.
Those considerations do not apply to private debts, by contrast: credit risk (or the consumer credit rating) determines the interest rate, more or less, and entities go bankrupt if they fail to repay. Governments need a far more complex way of managing defaults because they cannot really go bankrupt (and suddenly stop providing services to citizens), albeit in some cases a government may disappear as it happened in Somalia or as it may happen in cases of occupied countries where the occupier doesn't recognize the occupied country's debts.
Smaller jurisdictions, such as cities, are usually guaranteed by their regional or national levels of government. When New York City declined into what would have been a bankrupt status during the 1970s (had it been a private entity), by the mid-1970s a "bailout" was required from New York State and the United States. In general, such measures amount to merging the smaller entity's debt into that of the larger entity and thereby giving it access to the lower interest rates the larger entity enjoys. The larger entity may then assume some agreed-upon oversight in order to prevent recurrence of the problem.
According to Modern Monetary Theory, public debt is seen as private wealth and interest payments on the debt as private income. The outstanding public debt is an expression of the accumulated previous budget deficits which have added financial assets to the private sector, providing demand for goods and services. Adherents of this school of economic thought argue that the scale of the problem is much less severe than is popularly supposed.
Wolfgang Stützel showed with his Saldenmechanik (Balances Mechanics) how a comprehensive debt redemption would compulsorily force a corresponding indebtedness of the private sector, due to a negative Keynes-multiplier leading to crisis and deflation.
In the dominant economic policy generally ascribed to theories of John Maynard Keynes, sometimes called Keynesian economics, there is tolerance for fairly high levels of public debt to pay for public investment in lean times, which, if boom times follow, can then be paid back from rising tax revenues. Empirically, however, sovereign borrowing in developing countries is procyclical, since developing countries have more difficulty accessing capital markets in lean times.
As this theory gained global popularity in the 1930s, many nations took on public debt to finance large infrastructural capital projects—such as highways or large hydroelectric dams. It was thought that this could start a virtuous cycle and a rising business confidence since there would be more workers with money to spend. Some[ who? ] have argued that the greatly increased military spending of World War II really ended the Great Depression. Of course, military expenditures are based upon the same tax (or debt) and spend fundamentals as the rest of the national budget, so this argument does little to undermine Keynesian theory. Indeed, some[ who? ] have suggested that significantly higher national spending necessitated by war essentially confirms the basic Keynesian analysis (see Military Keynesianism).
Nonetheless, the Keynesian scheme remained dominant, thanks in part to Keynes' own pamphlet How to Pay for the War , published in the United Kingdom in 1940. Since the war was being paid for, and being won, Keynes and Harry Dexter White, Assistant Secretary of the United States Department of the Treasury, were, according to John Kenneth Galbraith, the dominating influences on the Bretton Woods agreements. These agreements set the policies for the Bank for International Settlements (BIS), International Monetary Fund (IMF), and World Bank, the so-called Bretton Woods Institutions, launched in the late 1940s for the last two (the BIS was founded in 1930).
These are the dominant economic entities setting policies regarding public debt. Due to its role in setting policies for trade disputes, the World Trade Organization also has immense power to affect foreign exchange relations, as many nations are dependent on specific commodity markets for the balance of payments they require to repay debt.
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Understanding the structure of public debt and analyzing its risk requires one to:
Sovereign debt problems have been a major public policy issue since World War II, including the treatment of debt related to that war, the developing country "debt crisis" in the 1980s, and the shocks of the 1998 Russian financial crisis and Argentina's default in 2001.
Government "implicit" debt is the promise by a government of future payments from the state. Usually this refers to long-term promises of social payments such as pensions and health expenditure; not promises of other expenditure such as education or defense (which are largely paid on a "quid pro quo" basis to government employees and contractors).
A problem with these implicit government insurance liabilities is that it is hard to cost them accurately, since the amounts of future payments depend on so many factors. First of all, the social security claims are not "open" bonds or debt papers with a stated time frame, "time to maturity", "nominal value", or "net present value".
In the United States, as in most other countries, there is no money earmarked in the government's coffers for future social insurance payments. This insurance system is called PAYGO (pay-as-you-go). Alternative social insurance strategies might have included a system that involved save and invest.
Furthermore, population projections predict that when the "baby boomers" start to retire, the working population in the United States, and in many other countries, will be a smaller percentage of the population than it is now, for many years to come. This will increase the burden on the country of these promised pension and other payments—larger than the 65 percentof GDP that it is now. The "burden" of the government is what it spends, since it can only pay its bills through taxes, debt, and increasing the money supply (government spending = tax revenues + change in government debt held by public + change in monetary base held by the public). "Government social benefits" paid by the United States government during 2003 totaled $1.3 trillion. According to official government projections, the Medicare is facing a $37 trillion unfunded liability over the next 75 years, and the Social Security is facing a $13 trillion unfunded liability over the same time frame.
In 2010 the European Commission required EU Member Countries to publish their debt information in standardized methodology, explicitly including debts that were previously hidden in a number of ways to satisfy minimum requirements on local (national) and European (Stability and Growth Pact) level.
The following model of sovereign debt dynamics comes from Romer (2018).
Assume that the dynamics of a country's sovereign debt over time may be modeled as a continuous, deterministic process consisting of the interest paid on current debt and net borrowing:
Where is a time-dependent interest rate, is government spending, and is total tax collections. In order to solve this differential equation, we assume a solution and introduce the integrating factor :
This substitution leads to the equation:
And integrating this equation from , we find that:
A problem arises now that we've solved this equation: at , it is impossible for the present value of a country's debt to be positive. Otherwise, the country could borrow an infinite amount of money. Therefore, it is necessary to impose the No Ponzi condition:
Therefore, it follows that:
In other words, this last equation shows that the present value of taxes minus the present value of government spending must be at least equal to the initial sovereign debt.
The representative household's budget constraint is that the present value of its consumption cannot exceed its initial wealth plus the present value of its after-tax income.
Assuming that the present value of taxes equals the present value of government spending, then this last equation may be rewritten as:
This equation shows that the household budget constraint may be defined in terms of government purchases, without regards to debt or taxes. Moreover, this is the famous result known as Ricardian equivalence : only the quantity of government purchases affects the economy, not the method of financing (i.e., through debt or taxes).
The International Bank for Reconstruction and Development (IBRD) is an international financial institution that offers loans to middle-income developing countries. The IBRD is the first of five member institutions that compose the World Bank Group, and is headquartered in Washington, D.C. in the United States. It was established in 1944 with the mission of financing the reconstruction of European nations devastated by World War II. The IBRD and its concessional lending arm, the International Development Association, are collectively known as the World Bank as they share the same leadership and staff. Following the reconstruction of Europe, the Bank's mandate expanded to advancing worldwide economic development and eradicating poverty. The IBRD provides commercial-grade or concessional financing to sovereign states to fund projects that seek to improve transportation and infrastructure, education, domestic policy, environmental consciousness, energy investments, healthcare, access to food and potable water, and access to improved sanitation.
In finance, a bond is an instrument of indebtedness of the bond issuer to the holders. The most common types of bonds include municipal bonds and corporate bonds.
In economics and political science, fiscal policy is the use of government revenue collection and expenditure (spending) to influence a country's economy. The use of government revenues and expenditures to influence macroeconomic variables developed as a result of the Great Depression, when the previous laissez-faire approach to economic management became discredited. Fiscal policy is based on the theories of the British economist John Maynard Keynes, whose Keynesian economics indicated that government changes in the levels of taxation and government spending influences aggregate demand and the level of economic activity. Fiscal and monetary policy are the key strategies used by a country's government and central bank to advance its economic objectives. The combination of these policies enables these authorities to target the inflation and to increase employment. Additionally, it is designed to try to keep GDP growth at 2%–3% and the unemployment rate near the natural unemployment rate of 4%–5%. This implies that fiscal policy is used to stabilize the economy over the course of the business cycle.
An interest rate is the amount of interest due per period, as a proportion of the amount lent, deposited or borrowed. The total interest on an amount lent or borrowed depends on the principal sum, the interest rate, the compounding frequency, and the length of time over which it is lent, deposited or borrowed.
Public finance is the study of the role of the government in the economy. It is the branch of economics that assesses the government revenue and government expenditure of the public authorities and the adjustment of one or the other to achieve desirable effects and avoid undesirable ones.
A government budget is a financial statement presenting the government's proposed revenues and spending for a financial year. The government budget balance, also alternatively referred to as general government balance, public budget balance, or public fiscal balance, is the overall difference between government revenues and spending. A positive balance is called a government budget surplus, and a negative balance is a government budget deficit. A budget is prepared for each level of government and takes into account public social security obligations.
A credit risk is the risk of default on a debt that may arise from a borrower failing to make required payments. In the first resort, the risk is that of the lender and includes lost principal and interest, disruption to cash flows, and increased collection costs. The loss may be complete or partial. In an efficient market, higher levels of credit risk will be associated with higher borrowing costs. Because of this, measures of borrowing costs such as yield spreads can be used to infer credit risk levels based on assessments by market participants.
Fixed income refers to any type of investment under which the borrower or issuer is obliged to make payments of a fixed amount on a fixed schedule. For example, the borrower may have to pay interest at a fixed rate once a year, and to repay the principal amount on maturity. Fixed-income securities can be contrasted with equity securities – often referred to as stocks and shares – that create no obligation to pay dividends or any other form of income.
Brady bonds are dollar-denominated bonds, issued mostly by Latin American countries in the late 1980s. The bonds were named after U.S. Treasury Secretary Nicholas Brady, who proposed a novel debt-reduction agreement for developing countries.
A corporate bond is a bond issued by a corporation in order to raise financing for a variety of reasons such as to ongoing operations, M&A, or to expand business. The term is usually applied to longer-term debt instruments, with maturity of at least one year. Corporate debt instruments with maturity shorter than one year are referred to as commercial paper.
A currency crisis is a situation in which serious doubt exists as to whether a country's central bank has sufficient foreign exchange reserves to maintain the country's fixed exchange rate. The crisis is often accompanied by a speculative attack in the foreign exchange market. A currency crisis results from chronic balance of payments deficits, and thus is also called a balance of payments crisis. Often such a crisis culminates in a devaluation of the currency.
In economics, the debt-to-GDP ratio is the ratio between a country's government debt and its gross domestic product (GDP). A low debt-to-GDP ratio indicates an economy that produces and sells goods and services sufficient to pay back debts without incurring further debt. Geopolitical and economic considerations – including interest rates, war, recessions, and other variables – influence the borrowing practices of a nation and the choice to incur further debt.
A financial crisis is any of a broad variety of situations in which some financial assets suddenly lose a large part of their nominal value. In the 19th and early 20th centuries, many financial crises were associated with banking panics, and many recessions coincided with these panics. Other situations that are often called financial crises include stock market crashes and the bursting of other financial bubbles, currency crises, and sovereign defaults. Financial crises directly result in a loss of paper wealth but do not necessarily result in significant changes in the real economy.
Modern Monetary Theory or Modern Money Theory (MMT) is a heterodox macroeconomic theory that describes currency as a public monopoly for the government and unemployment as evidence that a currency monopolist is overly restricting the supply of the financial assets needed to pay taxes and satisfy savings desires. MMT is an evolution of chartalism and is sometimes referred to as neo-chartalism.
The foreign-exchange reserves of China are the state of the People's Republic of China holdings of cash, bank deposits, bonds, and other financial assets denominated in currencies other than China's national currency. In October 2016 China's foreign exchange reserves totaled US$3.12 trillion, the lowest total since 2011, but remained higher than the foreign exchange reserves of any other nation.
A sovereign default is the failure or refusal of the government of a sovereign state to pay back its debt in full. Cessation of due payments may either be accompanied by formal declaration (repudiation) of a government not to pay its debts, or it may be unannounced. A credit rating agency will take into account in its gradings capital, interest, extraneous and procedural defaults, failures to abide by the terms of bonds or other debt instruments. Countries have at times escaped the real burden of some of their debt through inflation. This is not "default" in the usual sense because the debt is honored, albeit with currency of lesser real value. Sometimes governments devalue their currency. This can be done by printing more money to apply toward their own debts, or by ending or altering the convertibility of their currencies into precious metals or foreign currency at fixed rates. Harder to quantify than an interest or capital default, this often is defined as an extraneous or procedural default (breach) of terms of the contracts or other instruments.
Original sin is a term in economics literature, proposed by Barry Eichengreen, Ricardo Hausmann, and Ugo Panizza in a series of papers to refer to a situation in which "most countries are not able to borrow abroad in their domestic currency."
Debt crisis is a situation in which a government loses the ability of paying back its governmental debt. When the expenditures of a government are more than its tax revenues for a prolonged period, the government may enter into a debt crisis. Various forms of governments finance their expenditures primarily by raising money through taxation. When tax revenues are insufficient, the government can make up the difference by issuing debt.
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