Thoughts on the Market

How to Navigate a High Inflation Regime

December 18, 2025

How to Navigate a High Inflation Regime

December 18, 2025

Our Head of Corporate Research Andrew Sheets and Chief Investment Officer for Morgan Stanley Wealth Management Lisa Shalett unpack what’s fueling persistent U.S. inflation and how investors could adjust their portfolios to this new landscape. 

 

Lisa Shalett is a member of Morgan Stanley's Wealth Management Division and is not a member of Morgan Stanley’s Research Department. Unless otherwise indicated, her views are her own and may differ from the views of the Morgan Stanley Research Department and from the views of others within Morgan Stanley.

Transcript

Andrew Sheets: Welcome to Thoughts on the Market. I'm Andrew Sheets, Head of Corporate Credit Research at Morgan Stanley.

 

Lisa Shalett: And I'm Lisa Shalett, Chief Investment Officer for Morgan Stanley Wealth Management.

 

Andrew Sheets: Today, is inflation really transitory or are we entering a new era where higher prices are the norm?

 

Andrew Sheets: It's Thursday, December 18th at 4pm in London.

 

Lisa Shalett: And it's 11am in New York.

 

Andrew Sheets: Lisa, it's great to talk to you again. And, you know, we're having this conversation in the aftermath of, kind of, an unusual dynamic in markets when it comes to inflation. Because inflation is still hovering around 3 percent. That's well above the Federal Reserve’s 2 percent target. And yet the Federal Reserve recently lowered interest rates again. Fiscal policy remains very stimulative, and I think there's this real question around whether inflation will moderate? Or whether we're going to see inflation be higher for longer. And you know, you are out with a new report touching on some of the issues behind this and why this might be a structural shift higher in inflation.

 

So, we'd love to get your thoughts on that, and we'll drill down into the various drivers as this conversation goes on.

 

Lisa Shalett: Thanks Andrew. And look, I think as we take a step back, and the reason we're calling this a regime change is because we see factors for inflation coming from both the demand side and the supply side. For example, on the demand side, the role of the infrastructure boom, the GenAI infrastructure boom, has become global. It has caused material appreciation of many commodities in 2025. We're seeing it obviously in some of the dynamics around precious metals. But we're also seeing it in industrial metals. Things like copper, things like nickel.

 

We're also seeing demand factors that may stem from the K-shaped economy. And the K-shaped economy, as we know, is really about this idea that the wealthiest folks are increasingly dominating consumption. And they are getting wealthy through financial asset inflation.

 

On the supply side, there are dynamics like immigration, dynamics around the housing market that we can talk about. But perhaps the wrapper around all of it is how policy is shifting – because increasingly policymakers are being constrained by very high levels of debt and deficits. And determining how to fund those debts and deficits actually removes some of the degrees of freedom that central bankers may have when it comes to actually using interest rates to constrain demand.

 

Andrew Sheets: Well, Lisa, this is such a great point because we're financial analysts. We're not political analysts. But it seems safe to say that voters really don't like inflation. But they also don't like some of the policies that would traditionally be assigned to fight inflation – be they higher interest rates or tighter fiscal policy.

 

And even some of the more recent political shifts that we've seen – I’m talking about the U.S. around, say, immigration policy could arguably be further tightening of that supply side of the economy – measures designed to raise wages, almost explicitly in their policy goals. So how do you see that dynamic? And, again, kind of where does that leave, you think, policy going forward?

 

Lisa Shalett: Yeah. I think the very short answer – our best guess is that policy becomes constrained. So, on the monetary side, we're already seeing the Fed beginning to signal that perhaps they're going to rely on other tools in the toolkit. And what are those tools in the toolkit? Well, they're managing the size of their balance sheet, managing the duration or the mix of things that they hold in the balance sheet. And it's actual, you know, returns to how they think about reserve management in the banking system. All of those things, all of those constraints may enable the U.S. government to fund debts, right? By buying the Treasury bill issuance, which is, you know, swollen to almost [$]2 trillion a year in terms of U.S. deficits.

 

But on the fiscal side, right, the interest payments on debt, begins to crowd out other government spending. So, policy itself in this era of fiscal dominance becomes constrained – both in, you know, Washington, D.C. and from Congress – what they can do, their degrees of freedom – and what the central bank can do to actually control inflation.

 

Andrew Sheets: Another area that you touch on in your report is energy and technology, which are obviously related with this large boom that we're seeing – and continue to expect in AI data center construction. This is a lot of spending on the technology. This is a lot of power needed to power that technology and U.S. data center electricity demand is growing at a rapid rate. And transmission constraints are causing prices to go up. A price that is a pretty visible price for a lot of people when they get their utility bill. So, how do these factors you think shape the story? And where do you think they're going to go as we look into the future?

 

Lisa Shalett: Yeah, 100 percent. I mean, I think, you know, when we talk about, you know, who's going to dominate in Generative AI globally, one of the factors that we have to take into consideration is what is the cost of power? What is the cost of electricity? What is the age of the infrastructure to both generate that electricity and transport it? And transmit it?

 

This is one of the areas where the U.S., at the minute, is facing genuine constraints. When you think about some of the forecasts that have been put out there in terms of $10 trillion of spending related to Generative AI, the number of data centers that are going to be built, and the power shortfall that has been forecast. We're talking about someone having to pay the price, if you will, to ration power until you can upgrade the grid.

 

And in the U.S., that grid upgrade, to be blunt, has lagged some of the rest of the world. Not only because the rest of the world was slower to modernize and leapfrogged in many ways. But we know in China, for example, they have one of the lowest electricity generation costs on the planet. That is an advantage for them. So, we have to consider that power generation writ large is potentially a force for upward inflation, at least in the short term.

 

Andrew Sheets: So we have the fiscal policy backdrop. We have an AI spending backdrop both contributing to the demand side of inflation. We have these supply constraints, whether it's housing or labor also, you know, potentially being more structural drivers of higher inflation.

 

The question I'm sure that investors are asking you is, what should they do about it? So, can you walk us through the key strategies that investors might want to consider as they navigate a new inflationary regime?

 

Lisa Shalett: Sure. So, the first thing that we think it's really important for folks to appreciate is that typically when we've been in these higher inflation regimes in the past, stocks and bonds become positively correlated. And what that means is that the power of a very simple 60-40 or stock-bond-cash portfolio to provide complete or optimal diversification fades. And it requires investors to potentially consider investing, especially beyond fixed income. 

 

Stocks very often are pro-inflationary assets; meaning many, many companies have the power to pass through price increases. If you are consuming income from a fixed income or a bond instrument, inflation is your enemy, right? Because it's eating into your real returns. And so, one of the things that we're talking with our clients a lot about in terms of portfolio construction are things like adding real assets, adding infrastructure assets, adding energy, transportation assets, adding commodities. Adding gold even, to a certain extent. 

 

Andrew Sheets: Just to play devil's advocate, you can imagine that some investors might say, ‘Well, I can look in the market at long-term inflation expectations.’ And those long-term inflation expectations have been kind of stable and a bit above the Fed's target. But not dramatically. So, what do you say to that? And what do you think those markets either might be missing? Or how could investors leverage that more benign view that's out there in the market?

 

Lisa Shalett: Yeah, so look, I think here's where the debate, right? Our perception has been that inflation expectations have remained extraordinarily anchored – because investors have actually reasonably short memories on the one hand, and we have, by and large, been in disinflationary times. Second, there's extraordinary faith in policy makers – that policy makers will fight inflation. And I think the third thing is that there's extraordinary faith in the deflationary forces of technology.

 

Now, all three of those things may absolutely, positively be true. The problem that we have is that the alternate case, right? The case that we’re making – that maybe we’re in a new inflationary regime is not priced, and the risk is non-zero.

 

And so, what we see, and what we’re watching is – how steep does the yield curve get, right? As we look at yields in the 10-30-year tenure – what is driving those rates higher? Is it a generic term premium? Or are we starting to see an unanchoring, if you will, of inflation expectations. And it takes a while for people to appreciate regime change.

 

And so, look, as is always the case, there’s no absolutes in the market. There’s no one theory that is priced and the other theory is not. But sometimes you want to hedge, and we think that we're going through a period where diversified portfolios and hedging for these alternative outcomes -- because there are such powerful structural crosscurrents – is the preferred path.

 

Andrew Sheets:  Lisa, thanks for sharing your insights

 

Lisa Shalett: Of course, Andrew. That's my pleasure.

 

Andrew Sheets:  As a reminder, if you enjoy Thoughts on the Market, please take a moment to rate and review us, wherever you listen. It helps more people find the show.

 

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Our Chief Fixed Income Strategist Vishy Tirupattur responds to some of the feedback from clients o...

Transcript

Vishy Tirupattur: Welcome to Thoughts on the Market. I am Vishy Tirupattur, Morgan Stanley’s Chief Fixed Income Strategist.

 

Today, I consider the pushback we've received on our 2026 outlooks – distilling the themes that drew the most debate and our responses to the debates.

 

It’s Tuesday, Dec 16th at 3:30pm in New York.

 

It's been a few weeks [since] we published our 2026 outlooks for the global economy and markets. We’ve had lots of wide-ranging conversations, much dialogue and debate with our clients across the globe on the key themes that we laid out in our outlook. Feedback has ranged from strong alignment to pointed disagreement, with many nuanced views in between. We welcome this dialogue, especially the pushback, as it forces us to re-examine our assumptions and refine our thinking.

 

Our constructive stance on AI and data center-related CapEx, along with the pivotal role we see for the credit market channels, drew notable scrutiny.  Our 2026 CapEx projections was anchored by a strong conviction – that demand for compute will far outstrip the supply over the next several years. We remain confident that credit markets across unsecured, structured, and securitized instruments in both public and private domains will be central to the financing of the next wave of AI-driven investments. The crucial point here is that we think this spending will be relatively insensitive to the macro conditions, i.e., the level of interest rates and economic growth. Regarding the level of AI investment, we received a bit of pushback on our economics forecast: Why don’t we forecast even more growth from AI CapEx? From our perspective, that is going to be a multi-year process, so the growth implications also extend over time.

 

Our U.S. credit strategists’ forecast for IG bond supply – $2.25 trillion in gross issuance; that’s up 25 percent year-over-year, or $1 trillion in net issuance; that’s 60 percent year-over-year – garnered significant attention. There was some pushback to the volume of the issuance we project. As CapEx growth outpaces revenue and pressures free cash flow, credit becomes a key financing bridge. Importantly, AI is not the sole driver of the surge that we forecast. A pick-up in M&A activity and the resulting increase in acquisition-driven IG  supply also will play a key role, in our view.

 

We also received pushback on our expectation for modest widening in credit spreads, roughly 15 basis points in investment grade, which we still think will remain near the low end of the historical ranges despite this massive surge in supply. Some clients argued for more widening, but we note that the bulk of the AI-related issuance will come from high-quality – you know AAA-AA rated issuers – which are currently underrepresented in credit markets relative to their equity market weight. Additionally, continued policy easing – two more rate cuts – modest economic re-acceleration, and persistent demand from yield-focused buyers should help to anchor the spreads.

 

Our macro strategists’ framing of 2026 as a transition year for global rates – from synchronized tightening to asynchronous normalization as central banks approach equilibrium – was broadly well received, as was their call for government bond yields to remain broadly range-bound. However, their view that markets will price in a dovish tilt to Fed policy sparked considerable debate. While there was broad agreement on the outlook for yield curve steepening, the nature of that steepening – bull steepening or bear steepening – remained a point of contention.

 

Outside the U.S., the biggest pushback was to the call on the ECB cutting rates two more times in 2026. Our economists disagreed with President Lagarde – that the disinflationary process has ended. Even with moderate continued euro area growth on German fiscal expansion, but consolidation elsewhere, we still see an output gap that will eventually lead inflation to undershoot the ECB’s 2 percent target.

 

We also engaged in lively dialogue and debate on China. The key debate here comes down to a micro versus macro story. Put differently, the market is not the economy and the economy is not the market. Sentiment on investments in China has turned around this year, and our strategists are on board with that view. However, from an economics point of view, we see deflation continuing and fiscal policy from Beijing as a bit too modest to spark near-term reflation.

 

Thanks for listening. If you enjoy the show, please leave us a review wherever you listen and share Thoughts on the Market with a friend or colleague today.

 

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Our CIO and Chief U.S. Equity Strategist Mike Wilson explains the significance of the Fed’s decisi...

Transcript

Welcome to Thoughts on the Market. I'm Mike Wilson, Morgan Stanley’s CIO and Chief U.S.  Equity Strategist.

 

Today on the podcast I’ll be discussing the Fed’s decision last week and what it means for stocks.

 

It's Monday, December 15th at 11:30am in New York.  

 

So, let’s get after it.

 

Last week's Fed meeting provided incremental support for our positive 2026 outlook on equities. The Fed delivered on its expected hawkish rate cut but also indicated it would do more if the labor market continues to soften. 

 

More important than the rate cut was the Fed's decision to restart asset purchases. More specifically, the Fed intends to immediately begin buying $40 billion of T-Bills per month to ensure the smooth operation of financial markets. Based on our conversations with investors prior to the announcement, this amount and timing of bill buying exceeded both consensus, and my own expectations. It also confirms a key insight I have been discussing for months and highlighted in our Year Ahead Outlook. 

 

First, the Fed is not independent of markets, and market stability often plays a dominant role in Fed policy beyond the stated dual mandate of full employment and price stability.

 

Second, given the size of the debt and deficit, the Fed has an additional responsibility to assist Treasury in funding the government, and will likely continue to work more closely with Treasury in this regard.

Finally, the decision to intervene in funding markets sooner and more aggressively than expected may not be ‘Quantitative Easing’ as defined by the Fed.  However, it is a form of debt monetization that directly helps to reduce the crowding out from the still growing Treasury issuance, especially as Treasury issues more Bills over Bonds.

 

At the Fed's October meeting, it indicated some concern about tightening liquidity which I have discussed on this podcast as the single biggest risk to the bull market in stocks. Evidence of this tightness can be seen in the performance of asset prices most sensitive to liquidity, including crypto currencies and profitless growth stocks.

 

While the Fed probably isn't too concerned about the performance of these asset classes, it does care about financial stability in the bond, credit and funding markets. This is what likely prompted it to restart asset purchases sooner and in a more significant way than most expected.

 

We view this as a form of debt monetization as I mentioned, given the Treasury's objective to issue more bills going forward. More importantly, these purchases provide additional liquidity for markets, and in combination with rate cuts, suggest the Fed is likely less worried about missing its inflation target. This is very much in line with our run it hot thesis dating back to early 2021. As a reminder, accelerating inflation is positive for asset prices as long as it doesn’t force the Fed’s hand to take the punch bowl away like in 2022.  

 

Ironically, the risk in the near-term is that this larger than expected asset purchase program may be insufficient if the Fed has materially underestimated the level of reserves necessary for markets to operate smoothly. This is what happened in 2019 and why the Fed created the Standing Repo Facility in the first place. However, this is more of a tool that is used on an as-needed basis. What the markets may want or need is a larger buffer if the Fed has underestimated the level of reserves required for smoothly functioning financial markets.

 

To be clear, I don’t know what that level is, but I do believe markets will tell us if the Fed has done enough with this latest provision. Liquidity-sensitive asset classes and areas of the equity market will be important to watch in this regard,  particularly given how weak they traded last Friday and this morning.

 

Bottom line, the Fed has reacted to the markets' tremors over the past few months. Should markets wobble again, we are highly confident the Fed will once again react until things calm down. Last week's FOMC meeting only increases our conviction in that case and keeps us bullish over the next 6-12 months, and our 7800 price target on the S&P 500. We would welcome a correction in the short term as a buying opportunity. 

 

Thanks for tuning in; I hope you found it informative and useful. Let us know what you think by leaving us a review. And if you find Thoughts on the Market worthwhile, tell a friend or colleague to try it out!

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