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    Once a G.O.P. Rallying Cry, Debt and Deficits Fall From the Party’s Platform

    Fiscal hawks are lamenting the transformation of the party that claimed to prize fiscal restraint and are warning of dire economic consequences.When Donald J. Trump ran for president in 2016, the official Republican platform called for imposing “firm caps on future debt” to “accelerate the repayment of the trillions we now owe.”When Mr. Trump sought a second term in 2020, the party’s platform pummeled Democrats for refusing to help Republicans rein in spending and proposed a constitutional requirement that the federal budget be balanced.Those ambitions were cast aside in the platform that the Republican Party unveiled this week ahead of its convention. Nowhere in the 16-page document do the words “debt” or “deficit” as they relate to the nation’s grim fiscal situation appear. The platform included only a glancing reference to slashing “wasteful” spending, a perennial Republican talking point.To budget hawks who have spent years warning that the United States is spending more than it can afford, the omissions signaled the completion of a Republican transformation from a party that once espoused fiscal restraint to one that is beholden to the ideology of Mr. Trump, who once billed himself the “king of debt.”“I am really shocked that the party that I grew up with is now a party that doesn’t think that debt and deficits matter,” said G. William Hoagland, the former top budget expert for Senate Republicans. “We’ve got a deficit deficiency syndrome going on in our party.”The U.S. national debt is approaching $35 trillion and is on pace to top $56 trillion over the next decade, according to the Congressional Budget Office. At that point, the United States would be spending about as much on interest payments to its lenders — $1.7 trillion — as it does on Medicare.We are having trouble retrieving the article content.Please enable JavaScript in your browser settings.Thank you for your patience while we verify access. If you are in Reader mode please exit and log into your Times account, or subscribe for all of The Times.Thank you for your patience while we verify access.Already a subscriber? Log in.Want all of The Times? Subscribe. More

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    One Obstacle for Trump’s Promises: This Isn’t the 2016 Economy

    Donald J. Trump slapped tariffs on trading partners and cut taxes in his first term. But after inflation’s return, a repeat playbook would be riskier.When Donald J. Trump became president in 2017, prices had risen roughly 5 percent over the previous four years. If he were to win the race for the White House in 2024, he would be entering office at a time when they are up 20 percent and counting.That is a critically different economic backdrop for the kind of policies — tariffs and tax cuts — that the Republican contender has put at the center of his campaign.Mr. Trump regularly blames the Biden administration for the recent price surge, but inflation has been a global phenomenon since the onset of the coronavirus pandemic in 2020. Supply chain problems, shifting consumer spending patterns and other quirks related to pandemic lockdowns and their aftermath collided with stimulus-fueled demand to send costs shooting higher.The years of unusually rapid inflation that resulted have changed the nation’s economic picture in important ways. Businesses are more accustomed to adjusting prices and consumers are more used to those changes than they were before the pandemic, when costs had been quiescent for decades. Beyond that, the Federal Reserve has lifted interest rates to 5.3 percent in a bid to slow demand and wrestle the situation under control.That combination — jittery inflation expectations and higher interest rates — could make many of the ideas Mr. Trump talks about on the campaign trail either riskier or more costly than before, especially at a moment when the economy is running at full speed and unemployment is very low.Mr. Trump is suggesting tax cuts that could speed up the economy and add to the deficit, potentially boosting inflation and adding to the national debt at a time when it costs a lot for the government to borrow. He has talked about mass deportations at a moment when economists warn that losing a lot of would-be workers could cause labor shortages and push up prices. He promises to ramp up tariffs across the board — and drastically on China — in a move that might sharply increase import prices.We are having trouble retrieving the article content.Please enable JavaScript in your browser settings.Thank you for your patience while we verify access. If you are in Reader mode please exit and log into your Times account, or subscribe for all of The Times.Thank you for your patience while we verify access.Already a subscriber? Log in.Want all of The Times? Subscribe. More

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    Get Ready for the Debate Like an Economics Pro

    What you need to know about the economy before Thursday’s showdown between President Biden and Donald J. Trump.President Biden.Doug Mills/The New York TimesFormer President Donald J. Trump.Haiyun Jiang for The New York TimesMany of the issues likely to dominate Thursday’s televised debate between President Biden and former President Donald J. Trump boil down to economics.Inflation, immigration, government taxing and spending, interest rates, and trade relationships could all take center stage — and both candidates could make sweeping claims about them, as they regularly do at campaign events and other public appearances.Given that, it could be handy to go into the event with an understanding of where the economic data stand now and what the latest research says. Below is a rundown of some of today’s hot-button topics and the context you need to follow along like a pro.Inflation has been high, but it’s slowing.Inflation jumped during the pandemic and its aftermath for a few reasons. The government had pumped more than $5 trillion into the economy in response to Covid, first under Mr. Trump and then under Mr. Biden.As families received stimulus checks and built up savings amid pandemic lockdowns, they began to spend their money on goods like cars and home gym equipment. That burst of demand for physical products collided with factory shutdowns around the world and snarls in shipping routes.Shortages for everything from furniture parts and bicycles to computer chips for cars began to crop up, and prices started to jump in 2021 as a lot of money chased too few goods.We are having trouble retrieving the article content.Please enable JavaScript in your browser settings.Thank you for your patience while we verify access. If you are in Reader mode please exit and log into your Times account, or subscribe for all of The Times.Thank you for your patience while we verify access.Already a subscriber? Log in.Want all of The Times? Subscribe. More

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    U.S. Debt on Pace to Top $56 Trillion Over Next 10 Years

    Congressional Budget Office projections released on Tuesday show a grim fiscal backdrop ahead of tax and debt limit fights.The United States is on a pace to add trillions of dollars to its national debt over the next decade, borrowing money more quickly than previously expected, at a time when big legislative fights loom over taxes and spending.The Congressional Budget Office said on Tuesday that the U.S. national debt is poised to top $56 trillion by 2034, as rising spending and interest expenses outpace tax revenues. The mounting costs of Social Security and Medicare continue to weigh on the nation’s finances, along with rising interest rates, which have made it more costly for the federal government to borrow huge sums of money.As a result, the United States is expected to continue running large budget deficits, which are the gap between what America spends and what it receives through taxes and other revenue. The budget deficit in 2024 is projected to be $1.9 trillion, up from a forecast earlier this year of $1.6 trillion. Over the next 10 years, the annual deficit is projected to swell to $2.9 trillion. As a share of the economy, debt held by the public in 2034 will be 122 percent of gross domestic product, up from 99 percent in 2024.The new projections come as lawmakers are gearing up for a big tax and spending battle. Most of the 2017 Trump tax cuts will expire in 2025, forcing lawmakers to decide whether to renew them and, if so, how to pay for them. The United States will also again have to deal with a statutory cap on how much it can borrow. Congress agreed last year to suspend the debt limit and allow the federal government to keep borrowing until next January.Those fights over tax and spending will be taking place at a time when the country’s fiscal backdrop is increasingly grim. An aging population continues to weigh on America’s old-age and retirement programs, which are facing long-term shortfalls that could result in reduced retirement and medical benefits.Both Democrats and Republicans expressed concern about the national debt as inflation and interest rates soared over the last few years, but spending has been difficult to corral. The C.B.O. report assumes that the 2017 tax cuts are not extended, but that is highly unlikely. President Biden has said he will extend some of the tax cuts, including those for low- and middle-income earners, and former President Donald J. Trump has said he will extend all of them if he wins in November. Fully extending the tax cuts could cost around about $5 trillion over 10 years.We are having trouble retrieving the article content.Please enable JavaScript in your browser settings.Thank you for your patience while we verify access. If you are in Reader mode please exit and log into your Times account, or subscribe for all of The Times.Thank you for your patience while we verify access.Already a subscriber? Log in.Want all of The Times? Subscribe. More

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    Inflation Is Stubborn. Is the Federal Budget Deficit Making It Worse?

    Economists are divided over whether the growing amount of federal borrowing is fueling demand and driving up prices.A crucial question is hanging over the American economy and the fall presidential election: Why are consumer prices still growing uncomfortably fast, even after a sustained campaign by the Federal Reserve to slow the economy by raising interest rates?Economists and policy experts have offered several explanations. Some are essentially quirks of the current economic moment, like a delayed, post-pandemic surge in the cost of home and auto insurance. Others are long-running structural issues, like a lack of affordable housing that has pushed up rents in big cities like New York as would-be tenants compete for units.But some economists, including top officials at the International Monetary Fund, said that the federal government bore some of the blame because it had continued to pump large amounts of borrowed money into the economy at a time when the economy did not need a fiscal boost.That borrowing is a result of a federal budget deficit that has been elevated by tax cuts and spending increases. It is helping to fuel demand for goods and services by channeling money to companies and people who then go out and spend it.I.M.F. officials warned that the deficit was also increasing prices. In a report earlier this month, they wrote that while America’s recent economic performance was impressive, it was fueled in part by a pace of borrowing “that is out of line with long-term fiscal sustainability.”The I.M.F. said that U.S. fiscal policies were adding about a half a percentage point to the national inflation rate and raising “short-term risks to the disinflation process” — essentially saying that the government was working at cross-purposes with the Fed.We are having trouble retrieving the article content.Please enable JavaScript in your browser settings.Thank you for your patience while we verify access. If you are in Reader mode please exit and log into your Times account, or subscribe for all of The Times.Thank you for your patience while we verify access.Already a subscriber? Log in.Want all of The Times? Subscribe. More

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    Biden’s $7.3 Trillion Budget Proposal Highlights Divide With Trump and GOP

    President Biden proposed a $7.3 trillion budget on Monday packed with tax increases on corporations and high earners, new spending on social programs and a wide range of efforts to combat high consumer costs like housing and college tuition.The proposal includes only relatively small changes from the budget plan Mr. Biden submitted last year, which went nowhere in Congress, though it reiterates his call for lawmakers to spend about $100 billion to strengthen border security and deliver aid to Israel and Ukraine.Most of the new spending and tax increases included in the fiscal year 2025 budget again stand almost no chance of becoming law this year, given that Republicans control the House and roundly oppose Mr. Biden’s economic agenda. Last week, House Republicans passed a budget proposal outlining their priorities, which are far afield from what Democrats have called for.Instead, the document will serve as a draft of Mr. Biden’s policy platform as he seeks re-election in November, along with a series of contrasts intended to draw a distinction with his presumptive Republican opponent, former President Donald J. Trump.Mr. Biden has sought to reclaim strength on economic issues with voters who have given him low marks amid elevated inflation. This budget aims to portray him as a champion of increased government aid for workers, parents, manufacturers, retirees and students, as well as the fight against climate change.Speaking in New Hampshire on Monday, Mr. Biden heralded the budget as a way to raise revenue to pay for his priorities by raising taxes on the wealthiest Americans and big corporations.We are having trouble retrieving the article content.Please enable JavaScript in your browser settings.Thank you for your patience while we verify access. If you are in Reader mode please exit and log into your Times account, or subscribe for all of The Times.Thank you for your patience while we verify access.Already a subscriber? Log in.Want all of The Times? Subscribe. More

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    Wall Street’s Bond ‘Vigilantes’ Are Back

    The financial world has been debating if market appetite for buying U.S. debt is near a limit. The ramifications for funding government priorities are immense.Typically, the esoteric inner workings of finance and the very public stakes of government spending are viewed as separate spheres.And bond trading is ordinarily a tidy arena driven by mechanical bets about where the economy and interest rates will be months or years from now.But those separations and that sense of order changed this year as a gargantuan, chaotic battle was waged by traders in the nearly $27 trillion Treasury bond market — the place where the U.S. government goes to borrow.In the summer and fall, many investors worried that federal deficits were rising so rapidly that the government would flood the market with Treasury debt that would be met with meager demand. They believed that deficits were a key source of inflation that would erode future returns on any U.S. bonds they bought.So they insisted that if they were to keep buying Treasury bonds, they would need to be compensated with an expensive premium, in the form of a much higher interest rate paid to them.In market parlance, they were acting as bond vigilantes. That vigilante mindset fueled a “buyers’ strike” in which many traders sold off Treasuries or held back from buying more.The basic math of bonds is that, generally, when there are fewer buyers of bonds, the rate, or yield, on that debt rises and the value of the bonds falls. The yield on the 10-year Treasury note — the benchmark interest rate the government pays — went from just above 3 percent in March to 5 percent in October. (In a market this large, that amounted to trillions of dollars in losses for the large crop of investors who bet on lower bond yields earlier this year.)Since then, momentum has shifted to a remarkable degree. Several analysts say some of the frenzy reflected mistimed and mispriced bets regarding recession and future Federal Reserve policy more than fiscal policy concerns. And as inflation retreats and the Fed eventually ratchets down interest rates, they expect bond yields to continue to ease.But even if the sell-off frenzy has abated, the issues that ignited it have not gone away. And that has intensified debates over what the government can afford to do down the road.Federal debt compared with the size of the U.S. economy neared peak levels during the pandemicFederal debt held by the public — the amount of interest-generating U.S. Treasury securities held by bondholders — relative to gross domestic product

    Note: Gross federal debt held by the public is the sum of debt held by all entities outside the federal government (individuals, businesses, banks, insurance companies, state governments, pension and mutual funds, foreign governments and more.) It also includes debt owned by the Federal Reserve.Source: Federal Reserve Bank of St. LouisBy The New York TimesUnder current law, growing budget deficits increase the amount of debt the federal government must issue, and higher interest rates mean payments to bondholders will make up more of the federal budget. Interest paid to Treasury bondholders is now the government’s third-largest expenditure, after Medicare and Social Security.Powerful voices in finance and politics in New York, Washington and throughout the world are warning that the interest payments will crowd out other federal spending — in the realm of national security, government agencies, foreign aid, increased support for child care, climate change adaptation and more.“Do I think it really complicates fiscal policy in the coming five years, 10 years? Absolutely,” said the chief investment officer for Franklin Templeton Fixed Income, Sonal Desai, a portfolio manager who has bet that government bond yields will rise because of growing debt payments. “The math doesn’t add up on either side,” she added, “and the reality is neither the right or the left is willing to take sensible steps to try and bring that fiscal deficit down.”Fitch, one of the three major agencies that evaluate bond quality downgraded the credit rating on U.S. debt in August, citing an “erosion of governance” that has “manifested in repeated debt limit standoffs and last-minute resolutions.”Yet others are more sanguine. They do not think the U.S. government is at risk of default, because its debt payments are made in dollars that the government can create on demand. And they are generally less certain that fiscal deficits played the leading role in feeding inflation compared with the shocks from the pandemic.Joseph Quinlan, head of market strategy for Merrill and Bank of America Private Bank, said in an interview that the U.S. federal debt “remains manageable” and that “fears are overdone at this juncture.”Samuel Rines, an economist and the managing director at Corbu, a market research firm, was more blunt — laconically dismissing worries that a bond vigilante response to debt levels could become such a financial strain on consumers and companies that it sinks markets and, in turn, the economy.“If you want to make money, yawn,” he said. “If you want to lose money, panic.”Interest payments for Treasuries have increased rapidlyFederal spending on interest payments to holders of Treasuries

    Note: Data is not adjusted for inflation.Source: U.S. Bureau of Economic AnalysisBy The New York TimesThe debate over public debt is as fierce as ever. And it echoes, in some ways, an earlier time — when the term “bond vigilantes” first emerged.In 1983, a rising Yale-trained economist named Ed Yardeni published a letter titled “Bond Investors Are the Economy’s Bond Vigilantes,” coining the phrase. He declared, to great applause on Wall Street, that “if the fiscal and monetary authorities won’t regulate the economy, the bond investors will” — by viciously selling off U.S. bonds, sending a message to stop spending at its heightened levels.On the fiscal side, Washington reined in spending on major social programs. (A bipartisan deal had actually been reached shortly before Mr. Yardeni’s letter.) On the monetary side, the Federal Reserve began a new series of interest rate increases to keep inflation at bay.The Treasury bond sell-off continued into 1984, but by the mid-1980s, bond yields had come down substantially. Inflation, while mild compared with the 1970s, averaged about 4 percent in the following years, a level not tolerable by contemporary standards. Yet interest payments on government debt peaked in 1991 as a share of the U.S. economy and then declined for several years.That sequence of events may be an imperfect guide to the Treasury bond market of the 2020s.This time around, the Peterson Foundation, a group that pushes for tighter fiscal policy, has joined with policy analysts, former public officials and current congressional leaders to push for a bipartisan fiscal commission aimed at imposing lower federal deficits. Many assert that “tough questions” and “hard choices” are ahead — including a need to slash the future benefits of some federal programs.But some economic experts say that even with a debt pile larger than in the past, federal borrowing rates are relatively tame, comparable with past periods.According to a recent report by J.P. Morgan Asset Management, benchmark bond yields will fall toward 3.4 percent in the coming years, while inflation will average 2.3 percent. Other analyses from major banks and research shops have offered similar forecasts.In that scenario, the “real” cost of federal borrowing, in inflation-adjusted terms — a measure many experts prefer — would probably be close to 1 percent, historically not a cause for concern.Adam Tooze, a professor and economic historian at Columbia University, argues that current interest rates are “not a cause for action of any type at all.”At 2 percent when adjusted for inflation, those rates are “quite a normal level,” he said on a recent podcast. “It is the level that was prevailing before 2008.”In the 1990s, when bond vigilantes helped prod Congress into running a balanced budget, real borrowing rates for the government were hovering higher than they are now, mostly around 3 percent. Government yields were historically low before recent riseThe inflation-adjusted rate for the 10-year Treasury note, a key market measure of “real” government borrowing cost, jumped well above its 2010s levels this year.

    Source: Federal Reserve Bank of ClevelandBy The New York TimesIn the broader context of the interest rate controversy, there is disagreement on whether to even characterize U.S. debt as primarily a burden.Stephanie Kelton, an economics professor at Stony Brook University, is a leading voice of modern monetary theory, which holds that inflation and the availability of resources (whether materials or labor) are the key limits to government spending, rather than traditional budget constraints.U.S. dollars issued through debt payments “exist in the form of interest-bearing dollars called Treasury securities,” said Dr. Kelton, a former chief economist for the U.S. Senate Budget Committee. She argues, “If you’re lucky enough to own some of them, congratulations, they’re part of your financial savings and wealth.”That framework has found some sympathetic ears on Wall Street, especially among those who think paying more interest on bonds to savers does not necessarily impede other government spending. While the total foreign holdings of Treasuries are roughly $7 trillion, most federal debt is held by U.S.-based institutions and investors or the government itself, meaning that the fruits of higher interest payments are often going directly into the portfolios of Americans.David Kotok, the chief investment officer at Cumberland Advisors since 1973, argued in an interview that with some structural changes to the economy — such as immigration reform to increase growth and the ranks of young people paying into the tax base — a debt load as high as $60 trillion or more in coming decades would “not only not be troubling but would encourage you to use more of the debt because you would say, ‘Gee, we have the room right now to finance mitigation of climate change rather than incur the expenses of disaster.’”Campbell Harvey, a finance professor at Duke University and a research associate with the National Bureau of Economic Research, said he thinks “there is a lot of misinformation” about current U.S. debt burdens but made clear he views them “as a big deal and a bad situation.”“The way I look at it, there are four ways out of this,” Mr. Harvey said in an interview. The first two — to substantially raise taxes or slash core social programs — are not “politically feasible,” he said. The third way is to inflate the U.S. currency until the debt obligations are worth less, which he called regressive because of its disproportionate impact on the poor. The most attractive way, he contends, is for the economy to grow near or above the 4 percent annual rate that the nation achieved for many years after World War II.Others think that even without such rapid growth, the Federal Reserve’s ability to coordinate demand for debt, and its attempts to orchestrate market stability, will play the more central role.“The system will not allow a situation where the United States cannot fund itself,” said Brent Johnson, a former banker at Credit Suisse who is now the chief executive of Santiago Capital, an investment firm.That confidence, to an extent, stems from the reality that the Fed and the U.S. Treasury remain linchpins of global financial power and have the mind-bending ability, between them, to both issue government debt and buy it.There are less extravagant tools, too. The Treasury can telegraph and rearrange the amount of debt that will be issued at Treasury bond auctions and determine the time scale of bond contracts based on investor appetite. The Fed can unilaterally change short-term borrowing rates, which in turn often influence long-term bond rates.“I think the fiscal sustainability discourse is generally quite dull and blind to how much the Fed shapes the outcome,” said Skanda Amarnath, a former analyst at the Federal Reserve Bank of New York and the executive director at Employ America, a group that tracks labor markets and Fed policy.For now, according to the Treasury Borrowing Advisory Committee, a leading group of Wall Street traders, auctions of U.S. debt “continue to be consistently oversubscribed” — a sign of steady structural demand for the dollar, which remains the world’s dominant currency.Adam Parker, the chief executive of Trivariate Research and a former director of quantitative research at Morgan Stanley, argues that concerns regarding an oversupply of Treasuries in the market are conceptually understandable but that they have proved unfounded in one cycle after another. Some think this time is different.“Maybe I’m just dismissive of it because I’ve heard the argument seven times in a row,” he said. More

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    Higher Rates Stoke a Growing Chorus of Deficit Concerns

    A long period of higher interest rates would make the government’s large debt pile costly, a possibility that is fueling a conversation about debt sustainability.The U.S. government’s persistent budget deficit and growing debts were low on Wall Street’s list of worries when interest rates were at rock bottom for years. But borrowing costs have risen so sharply that it is causing many investors and economists to fret that the United States’ big debt pile could prove less sustainable.Federal Reserve officials have raised interest rates to about 5.3 percent since early 2022 in a bid to control inflation. Officials predicted at their meeting last month that interest rates could remain high for years to come, shaking expectations among investors who had bet on rates falling notably as soon as next year.The realization that the Fed could keep borrowing costs high for a long time has combined with a cocktail of other factors to send long-term interest rates soaring in financial markets. The rate on 10-year Treasury bonds has been climbing since July, and reached a nearly two-decade high this week. That matters because the 10-year Treasury is like the market’s backbone: It helps drive many other borrowing costs, from mortgages to corporate debt.The exact cause of the latest run-up in Treasury rates is hard to pinpoint. Many economists say a combination of drivers is probably helping to drive the pop — including strong growth, fewer foreign buyers of America’s debt, and concerns about debt sustainability in and of itself.What’s clear is that if rates remain elevated, the federal government will need to pay investors more interest in order to fund its borrowing. America’s gross national debt stands just above $33 trillion, more than the total annual output of the American economy. The debt is projected to keep growing both in dollar figures and as a share of the economy.While the climbing cost of holding so much debt is stoking conversations among economists and investors about the appropriate size of the government’s annual borrowing, there is no consensus in Washington for deficit reduction in the form of either higher taxes or big spending cuts.Still, the renewed concern is a stark reversal after years in which mainstream economists increasingly thought that the United States might have been too timid when it came to its debt: Years of low interest rates had convinced many that the government could borrow cheap money to pay for relief in times of economic trouble and investments in the future.The deficit as a share of the economy rose this year under President Biden even though the economy was growing.Pete Marovich for The New York Times“How big of a problem deficits are depends — and it depends very critically on interest rates,” said Jason Furman, an economist at Harvard and former economic official under the Obama administration. “That’s changed a lot,” so “your view on the deficit should change as well.”Mr. Furman had previously estimated that the growing cost of interest on federal debt would remain sustainable for some time, after factoring in inflation and economic growth. But now that rates have climbed so much, the calculus has shifted, he said.Since 2000, the United States has run an annual budget deficit, meaning it spends more than it receives in taxes and other revenue. It has made up the gap by borrowing money.Tax cuts, spending increases and emergency economic assistance approved by both Democratic and Republican presidents has helped fuel the rising deficits in recent years. So has the aging of America’s population, which has driven up the costs of Social Security and Medicare without corresponding increases in federal tax rates. The deficit as a share of the economy rose this year under President Biden even though the economy was growing, just as it did in the prepandemic years under President Donald J. Trump.Now, borrowing costs are poised to add to the gap.Higher interest rates are a leading cause, along with surprisingly weak tax collections, of what the Congressional Budget Office projects will be a doubling of the federal budget deficit over the last year. The deficit, when properly measured, grew from $1 trillion in the 2022 fiscal year to an estimated $2 trillion in the 2023 fiscal year, which ended last month.If borrowing costs climb further — or simply remain where they are for an extended period — the government will accumulate debt at a much faster rate than officials expected even a few months ago. A budget update released by Biden administration economists in July predicted annual average interest rates on 10-year Treasury bonds would not exceed 3.7 percent at any time over the next decade. Those rates are now hovering around 4.7 percent.That recent surge in longer-term bond yields ties back to a number of factors.While the Federal Reserve has been raising short-term interest rates for roughly 18 months, rates on longer-term bonds had remained fairly stable over the first half of this year. But investors have been slowly coming around to the possibility that the Fed will leave interest rates higher for longer — partly because growth has remained solid even in the face of elevated borrowing costs.At the same time, there have been fewer buyers for government bonds. The Fed has been shrinking its balance sheet of bonds as it reverses a pandemic-era stimulus policy, which means that it is no longer buying Treasuries — taking away a source of demand. And key foreign governments have also pulled back from bond purchases.“We’ve whittled down to a smaller universe of buyers,” said Krishna Guha, head of global policy and central bank strategy at Evercore ISI.Some analysts have suggested that the pickup in bond yields could also tie back to concerns about debt sustainability. To pay higher interest costs, the government may need to issue even more debt, compounding the problem — and focusing attention on America’s mammoth debt pile, said Ajay Rajadhyaksha, global chairman of research at Barclays.“The problem is not just that number,” he said, referencing the increasing deficit. “The problem is that this economy is as good as it gets.”The economy has remained strong even though the Federal Reserve has raised borrowing costs. That has many expecting the Fed to leave rates higher for longer.Jim Wilson/The New York TimesThat, several economists have said, is the core of the issue: America is borrowing a lot even at a time when the unemployment rate is very low and growth is strong, so the economy does not need a lot of government help.“Right now we have an incredible amount of issuance at the same time as the Fed is messaging higher for longer,” said Robert Tipp, chief investment strategist at PGIM Fixed Income, noting that typically higher issuance comes in periods of turmoil when central bank policy is more accommodative. “This is like a wartime budget deficit but without any help from the central bank. That is why this is so different.”White House officials say it is too early to know whether rising bond yields should spur Mr. Biden to add new deficit-reduction proposals to the $2.5 trillion in plans he included in this year’s budget. Those proposals consist largely of tax increases on corporations and high earners.“We might be having a different discussion about this a month from now,” said Jared Bernstein, the chair of the White House Council of Economic Advisers. “And when you’re writing budgets, you don’t go back and change your path lightly.”The Treasury Department has sold close to $16 trillion of debt for the year through September, up roughly 25 percent from the same period last year, according to data from the Securities Industry and Financial Markets Association. Much of that issuance replaced existing debt that was coming due, leaving a net debt issuance of around $1.7 trillion, more than at any other point over the past decade except for the pandemic-induced bond binge in 2020. The Treasury’s own advisory committee forecasts the size of government debt sales to rise another 23 percent in 2024.Maya MacGuineas, the president of the bipartisan Committee for a Responsible Federal Budget and a longtime proponent of reducing deficits, said it was hard to tell what had caused rates to climb recently. Still, she said, the move serves as a “reminder.”“From a fiscal perspective, the story is very simple: If you borrow too much, you become increasingly vulnerable to higher interest rates,” she said.Santul Nerkar More