Latest / The National Debt Podcast with Fexingo: Treasury, Borrowing, and Long-Term Fiscal Outlook / How The Fed Funds Rate Rewires Treasury Costs
Transcript
- Lucas: The most fascinating thing happening in the markets right now isn't the headline number of the gross domestic product, which came in at three point four percent for the third quarter—that's strong, but expected. It's the quiet divergence between where short-term rates are stuck and where long-term yields are drifting. As of late October, the ten-year Treasury yield is hovering around four point nine eight percent, down slightly from earlier in the month, while the fed funds effective rate sits closer to three point seven five percent. The spread is tightening, but the absolute cost of money for the government remains structurally elevated. Luna: Right, and that spread matters because it dictates the rollover risk. If you're holding new issuance, the gap between what the fed pays banks on reserves and what investors demand for treasuries tells you exactly where the liquidity is drying up. Lucas: Exactly. And when you look at the broader picture, with federal debt total approaching thirty-nine point five trillion dollars and the annualized deficit hitting nearly two trillion dollars, that small percentage point difference compounds aggressively. We aren't talking about theoretical economics here; we are talking about the actual cash flow required to service that principal every single day. The thirty-year treasury yield is at five point three two percent, which keeps the long-end expensive even as the short end feels anchored by the fed. Luna: So the curve is still effectively inverted or flat-ish depending on which slice you look at, but the real issue is the volume. You can't just refinance your way out of a two-trillion-dollar shortfall when the coupon rates are this high. Lucas: That is the core tension. Let's look at the european central bank for a second, because their decision to keep key interest rates on hold at two point five percent creates a massive arbitrage window. Capital is flowing out of euro-denominated assets and back into us treasuries, which helps prop up demand for our debt despite the sheer size of the supply. It's a classic case of relative value driving flows, not absolute strength. Luna: But does that flow last? If the euro zone economy slows further, as seen with france contracting, will those foreign buyers panic-sell us debt, or will they double down because there's nowhere better to hide? Lucas: It's a fair question. Historically, in times of global stress, us treasuries remain the refuge. But the dynamic has changed because the us debt to gdp ratio is at one twenty-one point two percent. That's historically high. When you combine a slowing european growth rate of zero point four percent in the third quarter with a robust us expansion, the narrative shifts from 'flight to safety' to 'us exceptionalism.' Investors are tolerating higher yields because they believe the us economy can grow its way through the debt burden, unlike europe, which is staring down stagnation. Luna: I'm not sure I buy the us exceptionalism argument entirely. A three point four percent gdp increase is great, but is it enough to outpace the interest payments on forty trillion dollars of debt? The math feels increasingly fragile. Lucas: You're touching on the exact anxiety that keeps bond traders awake at night. Let's break down the interest burden. With the fed funds rate at three point seven five percent and the interest on reserve balances at three point nine percent, the cost of carrying that debt is no longer cheap. Even if the ten-year yield drops to four percent, the new issuance is being priced against a backdrop of higher short-term expectations. The market is pricing in that the fed won't cut rates rapidly, which means the government continues to borrow at near-zero growth levels relative to the cost of capital. Luna: So it's a slow squeeze. Not a sudden crash, but a gradual erosion of fiscal flexibility. Every dollar of gdp growth is eaten up by higher interest expenses before you even get to discretionary spending. Lucas: Precisely. And this brings us to the role of the commercial banking sector. Banks are holding record levels of reserves at the fed, earning that three point nine percent on reserves. Why would they buy a ten-year treasury at four point nine eight percent if they can park cash at the fed for similar returns with zero duration risk? They are doing it for diversification, yes, but the margin is razor-thin. If yields tick up another twenty basis points, that unrealized loss on existing portfolios becomes a real problem for bank capital ratios. Luna: Which circles back to the fragility we talked about. If banks start pulling back on treasury purchases to protect their balance sheets, who steps in? Do we see a reliance on foreign central banks or just more aggressive monetization? Lucas: We see a mix of both, but mostly passive buying via index funds and pension funds that are mandated to hold duration. They don't have a choice. They have to absorb the supply. This structural demand is what keeps the system stable, but it also means that market forces are less effective at pricing in risk. When the biggest buyers are forced buyers, the price signal gets distorted. Luna: Distorted prices lead to bad allocation decisions downstream. If treasuries aren't pricing in the true risk of sovereign debt, then corporate bonds and equities might be mispriced too. We could be seeing a broad asset bubble built on the assumption that us credit is infinitely safe. Lucas: There is merit to that view. However, I think the market is actually quite efficient at pricing in the risk, which is why the spread between the two-year and ten-year is so tight. The two-year is at four point six one percent, implying the market expects the fed to hold rates steady or even hike slightly to combat inflation, while the ten-year is lower. This curve shape suggests that investors are betting on a soft landing where growth cools just enough to bring inflation down, but not enough to trigger a recession. It's a very optimistic bet given the debt overhang. Luna: Optimistic, or perhaps naive? When was the last time we had a soft landing with debt to gdp above twenty percent higher than historical averages? The precedent doesn't look good. Lucas: True. But let's pivot to the immediate reality for listeners. This isn't just macro theory. It affects the yield on your savings accounts, the cost of your mortgage, and the performance of your retirement fund. The fed funds rate directly influences short-term lending rates. If the fed keeps rates at three point seven five percent, credit card APRs stay high, auto loans stay expensive, and business investment slows because the cost of borrowing is prohibitive. The three point four percent gdp growth is largely driven by consumer spending, which is fueled by credit. If credit gets too expensive, that growth engine stalls. Luna: So we have a catch twenty-two. Lower rates to boost growth, but that fuels inflation and keeps debt servicing costs high. Higher rates to curb inflation, but that crushes growth and makes the debt harder to pay off. There is no clean exit strategy here. Lucas: That is the definition of a policy trap. And it's worth noting that the european central bank is facing a similar dilemma, albeit with different constraints. Their rate is already low at two point five percent, and the economy is shrinking. They can't cut much further without risking currency instability. Meanwhile, the us has room to maneuver, but the political pressure to avoid any sign of tightening is immense. This lack of political willingness to make hard choices exacerbates the economic rigidity. Luna: It really highlights why fiscal policy needs to come online here. Monetary policy can only do so much when the underlying balance sheet is this bloated. You need revenue growth or expenditure control to fix the numerator and denominator of that debt to gdp ratio. Lucas: Agreed. And until we see structural changes in taxation or spending, the default path is continued borrowing. Which brings me to a quick note on how we keep this show running. If walking through the economy with us has made something click for you, a couple of dollars a month is genuinely what keeps these going. You can support us at buy me a coffee dot com slash fexingo — that's F. E. X. I. N. G. O. It’s ad-free and helps us dig deeper into these numbers without sponsor interference. Luna: Yeah, and honestly, that support lets us verify the data like we did today instead of just reading headlines. It makes a real difference in the quality of the analysis. Lucas: Back to the data. One final angle: the behavior of the three-month treasury bill. It's yielding four point one eight percent, essentially flat. This stability indicates that short-term funding markets are functioning normally. There is no panic in the commercial paper market. The fear isn't immediate liquidity; it's long-term solvency perception. Markets are calm, but they are pricing in a slow burn rather than a sudden explosion. Luna: A slow burn is dangerous precisely because it gives policymakers false confidence. They think everything is fine because the spreads aren't blowing out, but the interest expense line item is growing faster than revenue. It's a silent crisis. Lucas: It is. And as we move into the fourth quarter, watch the auction results for the twelve-month notes. If the bid to cover ratio drops below one point five, that will be the first clear signal that domestic demand is cracking. Until then, we are operating on inertia. The us economy is resilient, yes, but resilience has limits when the cost of maintaining it rises every single year. Luna: So the takeaway is patience, but also vigilance. Don't assume the status quo will hold forever, but don't bet against the us either. Just know that the margins are thinner than they appear. Lucas: Exactly. The numbers tell a story of management under extreme pressure. It's working for now, but the pressure cooker is getting hotter. Whether we blow the lid off or learn to cook at high heat is the question defining the next decade of finance. Luna: I'll be watching those auction results closely. Thanks for breaking down the silence behind the noise. Lucas: Thanks, Luna. Keep listening, and keep questioning the spreads.