Climate and the Curve

Episode Summary

Executive Summary: The episode opens with a lively debate on recession risk and the yield curve, then shifts to a detailed discussion of Moody’s Analytics paper on the macroeconomic consequences of climate change. The team compares current policy, the Inflation Reduction Act, a carbon tax, and net-zero pathways, arguing that earlier and more forceful climate action lowers long-run GDP losses, fiscal stress, and physical damages. They close with real-time indicators, including weak leading indicators and subdued jobless claims.

Main Topics: Recession risk and the yield curve (Priority: 5/5): Mark, Chris, and Marissa debate whether the inverted yield curve still reliably signals recession, with Chris raising recession odds and Mark questioning whether QE and today’s credit environment distort the historical relationship. Why the yield curve predicts recessions (Priority: 5/5): Chris explains two channels: bond investors’ expectations of slower growth and a bank-lending mechanism in which inverted curves compress net interest margins and tighten credit. “This time is different” arguments (Priority: 4/5): Mark advances several reasons the current cycle may differ from past yield-curve episodes: QE/QT effects, unusually modest prior credit growth, and strong bank capitalization and liquidity. Climate paper methodology and scenarios (Priority: 5/5): The team reviews a new Moody’s Analytics paper using the global macro model to compare current policy, IRA, a $40/ton carbon tax, and a net-zero-by-2050 scenario, incorporating acute physical risk, chronic physical risk, and transition costs. Why carbon pricing is favored (Priority: 5/5): The discussion argues that putting a price on carbon is the most economically efficient decarbonization tool, while the IRA relies more on incentives and subsidies, making it politically easier but less efficient than a carbon tax. Implementation frictions and border adjustments (Priority: 4/5): Gaurav highlights real-world limits to climate modeling and policy, stressing transmission constraints, sectoral hard-to-abate emissions, and the need for carbon border adjustment mechanisms to preserve competitiveness. Real-time indicators and market signals (Priority: 3/5): The conversation ends with weak leading indicators, still-low but normalizing jobless claims, and the idea that some short-term data are consistent with slower growth without necessarily confirming an immediate deep recession.

Key Arguments: The 10-year/2-year and related yield curves remain historically powerful recession signals because they reflect both market expectations and bank lending constraints. The policy curve (funds rate vs. 10-year) has false positives, but a sustained hard inversion would reinforce recession risk. QE may have distorted long-term rates, but current balance-sheet policy is less interventionist than during the financial crisis and pandemic, so the signal should still matter. This cycle may be different because credit growth before inversion was modest, so there may be less rollover stress and fewer defaults than in prior recessions. Bank capital and liquidity are much stronger than in prior cycles, reducing the likelihood of a classic financial crisis even if recession occurs. Climate inaction becomes more costly over time because physical risk rises through the century and eventually overwhelms short-term transition costs. Among policy options analyzed, a slowly phased-in carbon tax is the most efficient way to reduce emissions and GDP losses. The Inflation Reduction Act is more politically feasible and uses mostly tax credits and incentives, but it is less efficient than carbon pricing and may shift more burden to the future. Border carbon adjustments are likely necessary if nations want to impose meaningful carbon pricing without undermining domestic industry competitiveness. Transmission expansion is a major bottleneck to achieving rapid U.S. decarbonization under the IRA. The October Conference Board Leading Economic Index signaled recessionary territory, but strong components in retail and claims data suggest a mixed near-term picture.

Data Points: Recession probability, Mark Sandy: 50% - Mark says his odds of recession are around even and that incoming data are moving in the right direction. Recession probability, Chris Doriz: 70% to 72% - Chris increases his recession odds as the yield curve steepens in inversion. Recession probability, Marissa Di Natale: Two-thirds (about 66%) - Marissa says her recession odds have risen from 60% a couple of weeks earlier. Recession probability, Chris Lafakis: 60% to 65% - Chris Lafakis says recession odds feel about right in that range. Policy carbon tax: $40 per metric ton in 2020, escalated by inflation + 5% annually - Carbon-tax scenario used in the modeling exercise. Federal balance sheet: Close to $9 trillion - Mark references the Fed’s Treasury and MBS holdings as a possible distortion to long rates. 10-year minus 2-year yield curve inversion: About 70 basis points - Chris cites a deep inversion in the 10-year vs. 2-year Treasury spread. 10-year minus 3-month yield curve inversion: About 50 basis points - Chris notes the curve is also deeply inverted at the front end. Policy curve inversion (funds rate vs. 10-year): About -4 basis points - Mark says this curve has only just recently inverted by a small amount. Yield-curve comparison period: Back to 1982 for a similar inversion - Chris says the current inversion is historically extreme. Climate action scenarios: 4 scenarios - Current policy, current policy plus IRA, carbon tax, and net zero by 2050. Carbon tax scenario escalation: Inflation + 5% per year - Assumed path for the tax rate in the modeled carbon-tax scenario. Federal disaster aid share: 46% - Bernard says historical federal appropriations cover about 46% of economic losses from major U.S. extreme weather events. Revenue returned to households: About 60% - Assumed dividend share returned under the tax scenarios. IRA tax credits: About $270 billion - Bernard describes the largest chunk of IRA support as clean-energy tax credits. IRA direct spending: About $120 billion - Bernard says direct spending supports climate resilience and related programs. IRA pay-fors / revenue raisers: About $20 billion - Includes Superfund tax and methane emissions fee components. Large tech layoffs and UI claims: Close to 40,000 job cuts this month - Bernard says layoffs are not likely to fully show up in claims due to severance and quick rehiring. Conference Board Leading Economic Index: -0.8% in October - Marissa’s statistic; the index fell for the eighth straight month. Leading Index streak: 8 consecutive monthly declines - The October decline was the eighth in a row. Leading Index comparison: Largest monthly decline since March 2009, excluding March-April 2020 - Signals recessionary territory. Jobless claims change: -4,000 - Bernard’s statistic refers to the weekly decline in initial UI claims. Paris Agreement / UN emissions gap: 52 gigatons of CO2e in 2030 - Gaurav cites the median estimate if pledges are implemented. 2023 recession timing expectation: First half to second half of 2023 - The hosts debate whether the recession, if any, would arrive mid-year or later.

Pivotal Quotes: "“Credit is the mother’s of economic activity.”" — Chris Doriz: Used to explain why bank lending conditions matter so much when the yield curve inverts. "“In the very long term, it’s more expensive to do nothing than to do something.”" — Chris Lafakis: Summarizing the paper’s conclusion that climate action reduces long-run economic damage. "“The solution to climate risk is pretty simple. Just tax the carbon, put a price on it.”" — Mark Sandy: Mark’s framing of carbon pricing as the cleanest economic solution to decarbonization.

Implications: Listeners should expect continued recession debate, with credit conditions and the yield curve still central signals. On climate, the message is that delaying action raises long-run GDP, fiscal, and physical costs, while carbon pricing remains the most efficient tool even if politically difficult.