Question #10 for 2025: Will inventory increase further in 2025?

Earlier I posted some questions on my blog for next year: Ten Economic Questions for 2025. Some of these questions concern real estate (inventory, house prices, housing starts, new home sales), and I’ll post thoughts on those in this newsletter (others like GDP and employment will be on my blog).

I'm adding some thoughts, and maybe some predictions for each question.

Here is a review of the Ten Economic Questions for 2024.

10) Housing Inventory: Housing inventory decreased sharply during the pandemic to record lows in early 2022. Since then, inventory has increased but is still below pre-pandemic levels. Will inventory increase further in 2025?

First, a brief history. Here are a few times when watching existing home inventory helped my analysis.

Starting in January 2005, I was very bearish on housing, but I wasn’t sure when the market would turn. Speculative bubbles can go on and on. However, the increase in existing home inventory in late 2005 (see red arrow on graph below) helped me call the top for house prices in 2006.

Several years later, in early 2012, when many people were still bearish on housing, the plunge in inventory in 2011 (blue arrow on graph below) helped me call the bottom for house prices in early 2012 (see The Housing Bottom is Here).

Six years ago, in January 2018, I was quoted in a Bloomberg article that included a bearish outlook for housing. I disagreed, and the steady level of inventory helped (see orange arrow above):

Bill McBride, who runs the Calculated Risk blog and also called the crash, doesn’t think home prices are inflated this time around. Unlike in 2005, lenders are acting responsibly and the Wild West of real estate speculation hasn’t returned, he said. There is less to speculate on, too. Compared with the overbuilding that preceded the bust, today’s pace of construction isn’t fast enough, he said.

And in December 2018, I disagreed with Professor Shiller A comment on Professor Shiller's "The Housing Boom Is Already Gigantic. How Long Can It Last?". My conclusion:

No big deal, and definitely not a "gigantic" boom in house prices.

In 2019, when several commentators were bearish on housing, I pointed out there was no sharp increase in housing inventory (like in 2005), and that was one of the reasons I remained optimistic on housing and the economy (correctly!).

And the sharp decline in inventory during the pandemic (green arrow) was an indicator that price appreciation would increase. Inventory declined due to a combination of potential sellers keeping their properties off the market during a pandemic, and a pickup in buying due to record low mortgage rates, initially a move away from multi-family rentals and strong second home buying (to escape the high-density cities). And at the same time, demographics were favorable for home buying (a large cohort had moved into the peak home buying years.

For 2024, inventory increased significantly according to the National Association of Realtors® (NAR). The second graph shows the year-over-year (YoY) change in reported existing home inventory and months-of-supply. Since inventory is not seasonally adjusted, it really helps to look at the YoY change. Note: Months-of-supply is based on the seasonally adjusted sales and not seasonally adjusted inventory.

The NAR reported inventory was up 17.7% year-over-year in November compared to November 2023.

Alternative measures of inventory

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