The Grant Williams Podcast Ep. 136 - Marvin Barth FULL EPISODE

Marvin Barth of Thematic Markets returns to The Grant Williams Podcast for a conversation I think is particularly important—not because his recent forecast for the US midterm elections proved correct, but precisely because it didn’t. Before the election, Marvin laid out a carefully reasoned argument that conventional polling was missing a significant population of low-trust, politically disengaged voters who had gravitated towards Donald Trump. As it turned out, he was right about the polling errors but wrong about where those voters would ultimately place their support. Rather than quietly moving on, Marvin joins me to examine exactly what he missed, why those voters appear to have turned against the administration and what the result tells us about the increasingly fluid nature of American politics. We explore the apparent disconnect between voters’ support for certain policies and their rejection of the politicians advocating them, the implications for both parties, and why the Iran war may have played a decisive role in changing the political landscape. From there, we turn to the economic consequences of the election, including fiscal policy, the Federal Reserve, real interest rates and the potential for slower AI-related investment to weigh on equity markets. Above all, this is a discussion about the discipline of forecasting: the importance of identifying where your assumptions failed, separating sound reasoning from an incorrect conclusion, and being willing to change your mind when the evidence demands it.

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