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David Booth on Investing, Dimensional and Staying Calm | The David Rubenstein Show

Bloomberg Markets
Thursday, September 24, 2026 at 3:33 PM
~4 min read

Original Report

David Booth started Dimensional Fund Advisors out of a Brooklyn brownstone in 1981 with an idea that challenged conventional investing: investors should have exposure to smaller companies as part of...

David Booth started Dimensional Fund Advisors out of a Brooklyn brownstone in 1981 with an idea that challenged conventional investing: investors should have exposure to smaller companies as part of a diversified portfolio. Today, Dimensional manages more than $1 trillion. Booth sits down with David Rubenstein to discuss his new book, "Stay Calm," which applies his investment philosophy of staying calm during periods of market volatility, to navigating the uncertainties of life. He's on this week's episode of The David Rubenstein Show: Peer to Peer Conversations. This interview was recorded August 10 in New York. (Source: Bloomberg)

Glass House Analysis

This story reflects the interconnected nature of modern economic systems, where developments in one sector inevitably affect others. Understanding these connections is essential for grasping how policy decisions and market movements translate into real-world outcomes for families, workers, and communities. The economy is not an abstract system of numbers—it's the sum total of decisions about who works, who prospers, and who struggles.

The implications extend beyond the immediate news cycle. Every economic development creates ripples that affect employment, prices, and opportunities in ways that may not be immediately visible but are deeply felt. By tracking these connections, we can better understand how the economy truly works—not as an abstract machine, but as a human system shaped by and shaping the lives of millions.

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