Joe Wiggins: Applying Behavioral Science to Make Better Investment Decisions

Episode Summary

Executive Summary: Joe Wiggins argues that fund investing is a uniquely difficult decision problem because investors must judge both managers and themselves amid noise, choice overload, and shifting market regimes. He warns against star managers, high fees, weak incentives, and short-termism, and urges long-horizon, probabilistic thinking grounded in base rates and clear process evidence rather than forecasts or narratives.

Main Topics: Joe Wiggins’ background and behavioral lens (Priority: 5/5): Wiggins explains how his career in fund research and portfolio management, plus training in behavioral science, led him to focus on how people make investment decisions and why fund investing is as much about psychology as markets. The behavioral challenge of fund investing (Priority: 5/5): The conversation centers on fund investing as a layered decision: investors judge fund managers while also managing their own biases, time horizons, and reactions to underperformance and noise. Lessons from star managers and Neil Woodford (Priority: 5/5): Wiggins uses Woodford as an example of the risks of 'star' fund managers: asset bloat, style drift, hubris, and weak governance can undermine once-successful approaches. Problems in active management incentives and fees (Priority: 5/5): He criticizes high fees, slow fee reductions, capacity management failures, and short-term business incentives that push asset managers toward marketing-driven behavior instead of long-term client outcomes. Current market regime shift (Priority: 4/5): Wiggins highlights the move from near-zero rates to higher cash yields as a major regime change affecting asset prices, bond attractiveness, equity valuations, and the breakdown of the traditional 60/40 correlation. How investors should make better decisions (Priority: 5/5): He advocates long time horizons, diversification, avoiding aggressive macro forecasts, and using base rates and probabilities to improve the odds of good outcomes rather than betting on certainty. Book recommendations and decision-making under uncertainty (Priority: 3/5): Wiggins recommends Peter Bernstein’s 'Against the Gods' and Geoff Friedman’s 'War and Chance' as works that deepen understanding of risk, uncertainty, and decision-making under pressure.

Key Arguments: Fund investing is harder than many assume because investors must simultaneously assess manager skill and control their own biases and reactions. A low-rate environment allowed poor or unproductive activities to persist; higher rates have reset how investors value assets relative to cash. Traditional 60/40 portfolios can suffer when equity-bond correlations break down, which is a normal test of strategy rather than proof it is broken. Star managers are dangerous because success often brings too much capital, style drift, hubris, and reduced firm-level controls. Most active funds underperform over time primarily because costs are too high, not because active investing is inherently flawed. Asset managers’ incentives are misaligned: they often focus on quarterly flows and earnings rather than long-term client outcomes. Investors should accept that all strategies go through difficult periods and avoid switching based on recent performance. Long-horizon investing requires tolerance for multi-year underperformance; if investors cannot bear that, passive investing may be a better fit. Good active managers should clearly state their beliefs, define where they have skill, and provide evidence linking process to outcomes. Base rates and historical evidence are more useful than narrative-driven macro predictions in complex markets.

Data Points: Years in investment industry: Since 2004 - Wiggins says he has worked in investing since 2004. Length of time at Aberdeen: 7 years - He describes Aberdeen as the most significant part of his career in terms of length. Behavioral science master’s degree: A few years back - Wiggins says he completed a master’s in behavioral science at LSE. Blog writing period: 4 or 5 years - He has been writing behaviouralinvestment.com for several years. Long time horizon: 10 years plus - Wiggins says this is his preferred definition of a genuinely long investing horizon. Alternative time horizon mentioned in discussion: 3 years - He says people often talk him down from 10 years to 3 years because of myopia. Market yield context: 3% or 4% or maybe even higher - He contrasts zero cash rates with higher current rates when discussing asset valuation. Typical active-fund process evidence base: 55%-60% - He says skill should be shown through process-to-outcome evidence, not just 3-5 year outperformance. Book publication: The Intelligent Fund Investor - The book is presented as Wiggins’ guide to the unique challenges of fund investing.

Pivotal Quotes: "you've got these two layers of decisions. Decision making, you're assessing someone else's decision making and also trying to make prudent, rational decisions yourself." — Joe Wiggins: Explaining why fund investing is uniquely difficult and behaviorally rich. "The worst thing that we can do is lurch from strategy to strategy based on what has been working in the past six months." — Joe Wiggins: Warning against performance chasing and strategy switching. "I think the worst thing that active investors can do is go into active investment and expect consistent short-term performance." — Joe Wiggins: Describing the necessity of accepting underperformance periods in active investing.

Implications: Listeners should expect more from managers than strong recent returns: clear beliefs, capacity discipline, lower fees, and evidence of skill matter more. For investors, patience, diversification, and base-rate thinking are essential in a higher-rate, more uncertain regime.