Professor David Brown explains how simple strategies can guide better decisions even when information is incomplete

New job postings appear daily. Real estate markets update constantly with fresh listings. In an environment where alternatives continuously multiply and options can seem endless, the hardest decision is knowing when to stop searching and commit.

In this episode, David Brown, the Snow Family Business Professor of Decision Sciences at Duke University’s Fuqua School of Business, discusses how people and organizations can make better decisions when information is scarce or costly.

Building on economist Martin Weitzman’s classic “Pandora’s Box Problem,” Brown and his co-author, Fuqua Ph.D. student Cagin Uru, found that straightforward search rules perform nearly as well as complex algorithms. Their research shows a surprisingly simple solution: commit upfront to search a specific number of alternatives based on search costs, then simply rank what you've seen and choose the best.

What makes their approach practical and appealing is its simplicity: it requires only the ability to rank alternatives you've seen and the discipline to stop searching at the right point, not probability calculations or complex data analysis. This applies broadly, from navigating job searches to booking flights to hiring contractors.

The conversation also explores when sophisticated algorithms are truly necessary. Their research shows that, across several search settings, their simple, transparent rules perform nearly as well as those based on more complex approaches (e.g., AI), raising questions about when algorithmic solutions are worth the investment.

Duke Fuqua Insights features digestible conversations with our faculty about the most impactful research from their careers, including studies they teach in Fuqua classes. New episodes every other week in season.

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A single decision improved by 1% might seem trivial. But make 300 small improvements over a year, and the compounding effect becomes transformative. A/B testing allows companies to systematically test different approaches and optimize performance, but research shows that the startups that could benefit most are the least likely to use it.

In this episode, Professor Sharique Hasan of Duke University’s Fuqua School of Business discusses his paper “Experimentation and Start-up Performance: Evidence from A/B Testing,” which focuses on how startups use A/B testing to drive performance. Based on data from more than 35,000 startups, Hasan and his coauthors found those that adopt A/B testing experience significantly higher performance over time—sometimes doubling outcomes after a year.

Hasan explains that while the impact is strongest for smaller and non–Silicon Valley startups, these firms often lack the resources to implement A/B testing effectively. For them, he introduces the concept of “experimental thinking” as a more accessible alternative: a mindset of comparing options rigorously, asking the right causal questions, and framing decisions with clear counterfactuals.

Drawing from both large-scale quantitative analysis and rich qualitative insights from tech practitioners, Hasan describes how small, compound decisions can lead to transformative outcomes.

Duke Fuqua Insights features digestible conversations with our faculty about the most impactful research from their careers, including studies they teach in Fuqua classes. New episodes every other week in season.

For more from Duke Fuqua, visit us on LinkedIn, Instagram, Facebook, Bluesky, and the Duke Fuqua Insights newsletter.

Professor Bill Mayew explores whether public companies have visibility into the macroeconomy to filter errors in GDP data—and what that means for economic forecasting

Every quarter, the U.S. Bureau of Economic Analysis releases its initial GDP estimate—a flagship measure of economic health that influences corporate boardrooms, Federal Reserve policy, and investor portfolios. But there’s a catch: these early numbers are often wrong.

In this episode, Professor Bill Mayew of Duke University’s Fuqua School of Business discusses his research, published in the Journal of Accounting and Economics, on how corporations respond when government economic data contains errors. Mayew explains why concerns about a potential “macro data crisis” have gained traction and why errors in economic data are not necessarily signs of dysfunction.

Initial GDP estimates rely on incomplete survey data—less than half from actual three-month surveys—with the rest from extrapolations. The Bureau of Economic Analysis refines these estimates at the one-year and five-year marks as more data arrives. Revisions are therefore expected and necessary.

Mayew’s research examined whether large public companies with a unique pulse on the economy could see through the errors inherent in initial GDP estimates. Analyzing firm-level behavior, he and his coauthors found firms tend to take preliminary GDP figures at face value, failing to filter out the inherent noise. When GDP data signals strength in one quarter, companies increase investment, production, and inventory the next — and the same pattern occurs whether the GDP signal reflects real economic change or statistical error.

For policymakers, the findings underscore the need for caution when substituting government data with private sector sources like ADP payroll information. While private data may complement government releases in some cases, Mayew emphasizes government data from agencies like the Bureau of Economic Analysis and Bureau of Labor Statistics still has substantial value.

Instead, he concludes, “we need to think of other ways to improve government data, which may be increasingly possible as new and creative ways of measuring economic activity occur.”

Duke Fuqua Insights features digestible conversations with our faculty about the most impactful research from their careers, including studies they teach in Fuqua classes. New episodes every other week in season.

For more from Duke Fuqua, visit us on LinkedIn, Instagram, Facebook, Bluesky, and the Duke Fuqua Insights newsletter.