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July 27, 2010
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Over the past few years, U.S. government debt held by the public has grown rapidlyto the point that, compared with the total output of the economy, it is now higher than it has ever been except during the period around World War II. The recent increase in debt has been the result of three sets of factors: an imbalance between federal revenues and spending that predates the recession and the recent turmoil in financial markets, sharply lower revenues and elevated spending that derive directly from those economic conditions, and the costs of various federal policies implemented in response to the conditions.
Further increases in federal debt relative to the nations output (gross domestic product, or GDP) almost certainly lie ahead if current policies remain in place. The aging of the population and rising costs for health care will push federal spending, measured as a percentage of GDP, well above the levels experienced in recent decades. Unless policymakers restrain the growth of spending, increase revenues significantly as a share of GDP, or adopt some combination of those two approaches, growing budget deficits will cause debt to rise to unsupportable levels.
Although deficits during or shortly after a recession generally hasten economic recovery, persistent deficits and continually mounting debt would have several negative economic consequences for the United States. Some of those consequences would arise gradually: A growing portion of peoples savings would go to purchase government debt rather than toward investments in productive capital goods such as factories and computers; that crowding out of investment would lead to lower output and incomes than would otherwise occur. In addition, if the payment of interest on the extra debt was financed by imposing higher marginal tax rates, those rates would discourage work and saving and further reduce output. Rising interest costs might also force reductions in spending on important government programs. Moreover, rising debt would increasingly restrict the ability of policymakers to use fiscal policy to respond to unexpected challenges, such as economic downturns or international crises.
Beyond those gradual consequences, a growing level of federal debt would also increase the probability of a sudden fiscal crisis, during which investors would lose confidence in the governments ability to manage its budget, and the government would thereby lose its ability to borrow at affordable rates. It is possible that interest rates would rise gradually as investors confidence declined, giving legislators advance warning of the worsening situation and sufficient time to make policy choices that could avert a crisis. But as other countries experiences show, it is also possible that investors would lose confidence abruptly and interest rates on government debt would rise sharply. The exact point at which such a crisis might occur for the United States is unknown, in part because the ratio of federal debt to GDP is climbing into unfamiliar territory and in part because the risk of a crisis is influenced by a number of other factors, including the governments long-term budget outlook, its near-term borrowing needs, and the health of the economy. When fiscal crises do occur, they often happen during an economic downturn, which amplifies the difficulties of adjusting fiscal policy in response.
If the United States encountered a fiscal crisis, the abrupt rise in interest rates would reflect investors fears that the government would renege on the terms of its existing debt or that it would increase the supply of money to finance its activities or pay creditors and thereby boost inflation. To restore investors confidence, policymakers would probably need to enact spending cuts or tax increases more drastic and painful than those that would have been necessary had the adjustments come sooner.

Over the past several years, the nation has experienced its most severe financial crisis since the Great Depression of the 1930s. In response, policymakers undertook a series of extraordinary actions to stabilize financial markets and institutions. The Federal Reserve System used its traditional policy tools to reduce short-term interest rates and increase the availability of funds to banks, and it created a variety of nontraditional credit programs to help restore liquidity and confidence to the financial sector. In doing so, it more than doubled the size of its asset portfolio to over $2 trillion and assumed more risk of losses than it normally takes on.
The financial system plays a vital role in the U.S. economy. It channels funds from savers to businesses, households, and governments that need money to finance investments and other expenditures, and it provides services that are essential for commercial and financial transactions. When the financial system is functioning smoothly, investors trade securities in liquid markets that provide reliable signals about the values of assets, and loans are readily available to creditworthy borrowers. As the nation's central bank, the Federal Reserve System plays an important role in maintaining the stability and liquidity of the financial system through its conduct of monetary policy and its authority as a supervisor and regulator of banking institutions.
Over the past several years, the nation has experienced its most severe financial crisis since the Great Depression of the 1930s. Unexpected losses on subprime mortgages (loans made to borrowers with poorer-than-average credit) as well as heightened uncertainty about how exposed some financial institutions might be to additional losses led to a sharp decline in the liquidity of some markets and the availability of credit. The contraction in lending became more severe as the turmoil spread beyond the subprime mortgage market, several large financial institutions failed, and the economy weakened. Net lending by the private financial sector fell from more than $3.0 trillion in 2007 to annual rates of about $1.4 trillion in the fourth quarter of 2008 and -$1.8 trillion in the first quarter of 2009.
In response to that contraction, the Federal Reserve undertook a series of extraordinary actions to stabilize financial markets and institutions. It continued to use its traditional monetary policy tools, but in addition, it created a variety of targeted credit programs to help restore liquidity and confidence to the financial sector. Its actions included:
In effect, the Federal Reserve assumed some of the credit- providing functions that participants in the financial markets were unable or unwilling to perform. In doing so, it also assumed significantly more risk of incurring losses than it normally takes on in its operations.
The Federal Reserve's activities during the crisis have had a striking impact on the amount and types of assets that it holds (see Summary Figure 1). In July 2007, before the financial crisis began, the Federal Reserve held about $900 billion in assets; U.S. Treasury securities accounted for about $790 billion of that amount. The central bank had acquired those securities during its normal operations in conducting monetary policy-the process of influencing the level of short-term interest rates and consequently the pace of U.S. economic activity. (Box 2 on page 6 outlines the basic mechanics of monetary policy.) By the end of 2008, the value of the Federal Reserve's assets had grown to about $2,275 billion; of that amount, loans and other support extended to financial institutions made up $1,686 billion. At the end of 2009, when the turmoil in the financial markets had subsided, the total value of the central bank's assets remained essentially where it was at the end of 2008. The amount of direct loans and other support to financial institutions, though still quite high by historical standards, had fallen markedly by the end of 2009, to about $280 billion, but holdings of mortgagerelated securities had risen, to just over $1,000 billion.
The Federal Reserve's activities during the crisis have also led to a marked shift in the composition of the central bank's liabilities (see Summary Figure 2). Before the crisis, the major liability on the Federal Reserve's balance sheet was the amount of currency (Federal Reserve notes) in circulation- about $814 billion as of July 2007. At the end of 2009, the amount of reserves that banks held with the Federal Reserve was the central bank's largest liability. Such reserves have grown from about $6 billion at the end of July 2007 to more than $1,022 billion at the end of 2009; those reserves greatly exceed the amount that banks are required to hold. In effect, the Federal Reserve financed its activities during the crisis primarily by creating bank reserves rather than by issuing more currency or increasing its other liabilities.
The amount and composition of the central bank's assets and liabilities are major determinants of the Federal Reserve's impact on the federal budget. That impact is measured by the central bank's cash remittances to the Treasury, which are recorded as revenues in the budget. (The amount that is remitted is based on the Federal Reserve System's income from all of its various activities minus the costs of generating that income, dividend payments to banks that are members of the Federal Reserve System, and changes in the amount of the surplus that it holds on its books.) For fiscal years 2000 through 2008,annual remittances by the Federal Reserve ranged between $19 billion and $34 billion.
The Congressional Budget Office (CBO) projects that the Federal Reserve's actions to stabilize the financial system will boost its remittances to the Treasury during the next several years. That increase reflects the Federal Reserve's larger portfolio of assets, most of which are likely to earn a great deal more than the amount the system must pay in interest on reserves and its other liabilities. CBO projects that remittances will grow from about $34 billion in fiscal year 2009 to more than $70 billion in fiscal years 2010 and 2011.
Projections of the Federal Reserve's remittances to the Treasury over the next few years, however, are more uncertain than projections made in the past. The system's asset holdings are now riskier, exposing the central bank to a considerably greater possibility of losses than its usual holdings of Treasury securities do. Moreover, the risk of losses from default associated with the amounts of the remittances is asymmetric. The chances are great that the Federal Reserve will remit slightly more than the amounts CBO expects. But there is also a small chance that it will remit much less-or even nothing-if serious problems reemerge in the financial markets or the economy greatly weakens again.
Measuring the impact of the Federal Reserve System's actions by the magnitude of its cash remittances to the Treasury fails to account for the cost of the risks to taxpayers from those actions. When the Federal Reserve invests in a risky security, it increases its expected net earnings because the return it anticipates on that security exceeds the interest rate it pays on the debt used to fund the purchase. If the Federal Reserve purchases the security at a fair market price, equivalent to what private investors would have paid, then the purchase creates no economic gain or loss for taxpayers; the price compensates the central bank for the risk it has assumed. By contrast, if the Federal Reserve purchases a risky security for more than the amount that private investors would have paid, it gives a subsidy to the seller of the security, creating an economic loss, or cost, for taxpayers.
The economic cost of the Federal Reserve System's actions to stabilize the financial markets-which incorporates the risks to taxpayers-can be estimated using "fair-value" subsidies. Fair value in many instances corresponds to market value; it is defined as the price that would be received by selling an asset in an orderly transaction between market participants on a designated measurement date. Subsidies estimated on a fair-value basis provide a more comprehensive measure of cost than do estimates made on a cash basis: They take into account the discounted value of all future cash flows associated with a credit obligation, and they include the cost of bearing risk. CBO and the Administration's Office of Management and Budget (OMB) use a conceptually similar subsidy measure, as specified by the Emergency Economic Stabilization Act of 2008, to estimate the budgetary cost of the Troubled Asset Relief Program, or TARP. (CBO calls such subsidies "fair value" in part to distinguish them from subsidies calculated through the method specified by the Federal Credit Reform Act of 1990 and used by CBO and OMB to estimate the budgetary cost of federal credit programs.)
In CBO's estimation, the fair-value subsidies conferred by the Federal Reserve System's actions to stabilize the financial markets totaled about $21 billion (see Summary Table 1 for details). The subsidies are estimated as of the date of inception of the main programs that the central bank put in place-when the major economic commitments occurred-and they incorporate CBO's projections of all future cash flows over the life of those facilities, the uncertainty surrounding the flows, and the expected rate of return that investors would have required for taking on the same obligations. The gains or losses that will ultimately be realized from the Federal Reserve's activities will almost certainly deviate from CBO's estimates of the fair-value subsidies those actions provided. Such forward-looking estimates are based on averages over many possible future outcomes, whereas realized gains or losses reflect a particular outcome.
In total, the fair-value subsidies that CBO has estimated are modest when compared, for instance, with CBO's estimate of the $189 billion subsidy provided by the TARP at its inception-even though most of the central bank's facilities were introduced near the height of the crisis, when the price of risk was substantial and the probability of default was elevated. The subsidies' relatively small magnitude reflects the fact that the Federal Reserve's potential for losses was limited in most instances by requirements for borrowers to provide collateral, by guarantees from the Treasury under the TARP and from the Federal Deposit Insurance Corporation, or by various restrictions on the programs. Furthermore, some of the assistance that the Federal Reserve provided involved no subsidies because the transactions were conducted on a fair-value basis or at prices determined in competitive auctions-meaning that the central bank was fully compensated for the risks it assumed.
CBO's estimates of the economic subsidies that the Federal Reserve has provided are highly uncertain. The estimates necessarily rely on judgments about the probability that the crisis would have deepened or abated, about the sums that might be borrowed and their associated interest rates at such times, and about the severity of losses. Uncertainty also surrounds the discount rates used in CBO's calculations, but that effect is mitigated by the short time over which most of the facilities were scheduled to operate. Indeed, most programs have already been ended.
It bears emphasizing that CBO's fair-value estimates address the costs but not the benefits of the Federal Reserve's actions. In CBO's judgment, if the Federal Reserve had not strategically provided credit and enhanced liquidity, the financial crisis probably would have been deeper and more protracted and the damages to the rest of the economy more severe. Measuring the benefits of the Federal Reserve's interventions in avoiding those worse outcomes is much more difficult than estimating the subsidy costs of the interventions, and CBO has not attempted to do so. It is likely, though, that the benefits of the Federal Reserve’s actions to stabilize the financial system exceeded the relatively small costs reported here for fair-value subsidies.

