fiscal policy — Alpha.Sources

Crowding out and AI debt issuance

Analysts and economist are, broadly speaking, offering up four separate reasons for the continued rise in developed market, and in particular, US bond yields. A resurgence in inflation due to the negative supply shock in global energy markets as a result of the US-Iran war, loose fiscal policy with little or no credible plan for any near-term consolidation, a reflection of improving underlying growth and rising productivity—linked to the AI investment boom—lifting the real neutral rate for “the right” reasons, and more specifically in the context of AI, rapidly accelerating AI debt issuance “crowding out” government debt issuance, lifting the cost of capital for the sovereign.

The idea that AI debt issuance is now a key driver of rising bond yields via a “crowding out” effect has captured a lot of attention in recent weeks with key Wall Street analysts and publications offering evidence to support the claim. The FT’s Toby Nangle, however, is not so sure, and in a recent FT Alphaville piece he sets out to rebut the claim.

December 21 - Tax Incidence

The economics of tax incidence concerns the question of who ultimately bears the burden of taxation—whether it falls on consumers, workers, or producers—and under what conditions that burden shifts between them. It is a foundational topic in public economics, tracing back to the work of early classical economists such as David Ricardo, John Stuart Mill, and later formalised within the marginalist revolution of the late nineteenth and early twentieth centuries. The key insight is that the party legally responsible for paying a tax is not necessarily the one who bears its economic cost. Rather, the incidence of a tax depends on the relative elasticities of supply and demand in the market affected.

Advent Calendarclaus vistesenDecember 21, 2025tax, tax policy, tax incidence, fiscal policy

The inflation and interest rate shocks are fading; what next?

I have a few speaking engagements coming up, prompting me to update my view on the world beyond the borders of the Eurozone, which makes up the day job. One trend that I am looking forward to present to, and discuss with, investors and capital allocators is the tension between signs that the inflation and interest rate shocks are now fading, in a cyclical sense, and the risk that inflation will stabilise above 2%, posing a challenge for monetary policymakers. Will they channel their inner Volcker or fudge the 2% inflation target?

Kinky economics - When must fiscal policy tighten to combat inflation?

The prevailing mood in global macro discussions seems to be as follows; inflation is past its peak, but it is set to remain a lot higher for a lot longer than initially anticipated, forcing central banks to continue hiking, keep rates higher for longer, or a combination of the two. The interest rate shock in the UK, as markets have adjusted their expectations for the BOE bank rate higher, and hawkish comments from the ECB are the two most obvious cases in point in developed markets. But a surprise hike by the Bank of Canada, and a larger-than-expected hike in Norway have added to the sentiment. We only really need the Fed to be forced into a hawkish turn to complete the narrative. This shift is important for investors. We are not just trying to calibrate when central banks will pause their hiking cycles—probably soon—but we’re also increasingly discussing, and pricing, how long rates will stay elevated, and whether central banks will have to resume hiking before they cut. Higher-for-longer, or #H4L, is already a trending hashtag on FinTwitter.

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