Bloomberg Opinion Columnist Justin Fox on the AI Spending Boom

11 snips

Nov 20, 2025

Justin Fox, a Bloomberg Opinion columnist and author of The Myth of the Rational Market, explores the AI spending boom and its historical parallels. He discusses how current investments in AI might mirror past tech bubbles. Justin also weighs in on the implications of tech concentration, the challenges of private equity valuations, and the public perception of AI compared to the internet boom. He offers insights into long-term investment strategies while cautioning against potential market downturns related to today's hype.

Ask episode

AI Snips

Chapters

Books

Transcript

Episode notes

INSIGHT

Finance Reconciles Competing Schools

Finance blends efficient-market models with behavioral insights today, rather than choosing one side.
Younger researchers borrow from both traditions to better explain prices and investor behavior.

INSIGHT

Experience Shapes Market Risk Appetite

Investors' expectations shift with personal experiences of markets and recessions.
That time-varying risk appetite helps explain cycles in valuations and equity premia.

INSIGHT

Indexing Has Hidden Market Effects

Rise of index funds removed many poor active managers but created side effects.
Shared ownership and indexing can raise betas and affect corporate investment decisions.

Get the Snipd Podcast app to discover more snips from this episode

Get the app

In this episode, co-hosts Elliot Turner and John Mihaljevic welcome Justin Fox, Bloomberg Opinion columnist covering business, economics, and other topics. He is also the author of The Myth of the Rational Market: A History of Risk, Reward, and Delusion on Wall Street.

Justin discusses the AI spending boom and how he sees it playing out based on his research into the current period and similar episodes in history.

Enjoy the conversation!

-----

Further reading:

-----

Justin Fox is a Bloomberg Opinion columnist covering business, economics and other topics involving charts. A former editorial director of the Harvard Business Review, he is author of “The Myth of the Rational Market.”

-----

The primary purpose of this podcast is to educate and inform. The views, information, or opinions expressed by hosts or guests are their own. Neither this show, nor any of its content should be construed as investment advice or as a recommendation to buy or sell any particular security. Security specific information shared on this podcast should not be relied upon as a basis for your own investment decisions -- be sure to do your own research. The podcast hosts and participants may have a position in the securities mentioned, personally, through sub accounts and/or through separate funds and may change their holdings at any time.

-----

About the Co-Hosts:

Elliot Turner is a co-founder and Managing Partner, CIO at RGA Investment Advisors, LLC. RGA Investment Advisors runs a long-term, low turnover, growth at a reasonable price investment strategy seeking out global opportunities. Elliot focuses on discovering and analyzing long-term, high quality investment opportunities and strategic portfolio management. Prior to joining RGA, Elliot managed portfolios at at AustinWeston Asset Management LLC, Chimera Securities and T3 Capital. Elliot holds the Chartered Financial Analyst (CFA) designation as well as a Juris Doctor from Brooklyn Law School.. He also holds a Bachelor of Arts degree from Emory University where he double majored in Political Science and Philosophy.

John Mihaljevic leads MOI Global and serves as managing editor of The Manual of Ideas. He managed a private partnership, Mihaljevic Partners LP, from 2005-2016. John is a winner of the Value Investors Club’s prize for best investment idea. He is a trained capital allocator, having studied under Yale University Chief Investment Officer David Swensen and served as Research Assistant to Nobel Laureate James Tobin. John holds a BA in Economics, summa cum laude, from Yale and is a CFA charterholder.