Masters in Business

Special Edition: Nobel Prize Winner Richard Thaler Live from the Economic Club of New York

November 20, 2025

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  • The updated edition of *The Winner's Curse* significantly expands upon the original 1992 work by incorporating 30 years of behavioral economics research, demonstrating that classic anomalies like the endowment effect replicate even among sophisticated market participants. 
  • Behavioral economic phenomena, such as the Winner's Curse and the Endowment Effect, are fundamentally bred and fed by uncertainty, as people struggle to rationally process unknown future outcomes. 
  • Technological advancements and the democratization of finance have magnified behavioral biases, as seen by retail traders losing billions trading high-volatility instruments like weekly options, which profit from these very biases. 

Segments

Genesis of The Winner’s Curse
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(00:03:06)
  • Key Takeaway: The original The Winner’s Curse book originated from a series of accessible ‘anomalies’ columns published in an American Economic Association journal starting around 1986.
  • Summary: An anomaly in economics is defined as a phenomenon unexplained by standard assumptions of smart, unemotional, selfish agents. Richard Thaler compiled these columns into the original 1992 version of The Winner’s Curse after they accumulated into book length. Thaler adopted a strategy of ‘corrupting the youth’ after realizing he wasn’t changing the minds of established economists.
Alex Imas’s Path to Behavioral Economics
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(00:07:04)
  • Key Takeaway: Alex Imas transitioned from a neuroscience undergraduate major, initially aiming for medical school, to pursuing an economics PhD after hearing Richard Thaler discuss behavioral economics on NPR in 2008.
  • Summary: Imas was initially drawn to economics as an easier STEM subject to boost his GPA while pre-med. Hearing Thaler discuss Nudge sparked his interest in combining neuroscience with economics, leading him to abandon medical school plans. The collaboration on the book update took five years, resulting in about two-thirds new content reflecting 30 years of research.
Replication Crisis and Robust Anomalies
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(00:12:26)
  • Key Takeaway: The behavioral economics findings in The Winner’s Curse have proven robust against the replication crisis affecting adjacent fields because the original anomalies selected involved large effect sizes.
  • Summary: Thaler chose topics with big effects, which helped ensure their findings could be reproduced across studies. The endowment effect, where ownership increases perceived value (about 2.5 times more than non-owners), has been documented in housing markets, matching lab magnitudes. The Ultimatum Game shows that offers below 20% are often rejected, contradicting game theory’s prediction that a dollar offer should be accepted.
The Winner’s Curse in Auctions
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(00:21:36)
  • Key Takeaway: The Winner’s Curse occurs because winning an auction means you bid high, implying you won not a random sample of bids, but the most optimistic or least accurate valuation.
  • Summary: The original research on the Winner’s Curse came from engineers at ARCO bidding on oil leases who noticed their won leases contained less oil than expected. This insight applies to contractors who often forget to factor in contingency costs when submitting the lowest bid. Contractors, however, often apply a fixed fudge factor (like adding 25%) rather than understanding the mathematical necessity of shading bids down in multi-bidder scenarios.
Beauty Contest Game and Market Learning
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(00:26:51)
  • Key Takeaway: The Beauty Contest Game, modeling Keynes’s stock market view, reveals that people rarely reach the Nash equilibrium (guessing ‘one’) because they fail to fully iterate on what others might think.
  • Summary: In the game where the winner guesses two-thirds of the average guess (between 1 and 100), the theoretical equilibrium is one, but most participants stop at Level 2 or 3 (guessing around 13-16). Learning in markets, like the slow adoption of the three-point shot in basketball or going for it on fourth down in football, is surprisingly slow because people resist looking foolish.
Selling Decisions vs. Buying Rigor
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(00:45:16)
  • Key Takeaway: Professional fund managers exhibit rigorous, quantitative buying decisions but make poor, emotionally biased selling decisions, often selling assets too early based on salience rather than expected alpha decay.
  • Summary: Alex Imas’s research showed fund managers performed worse than random when selling, comparing their sales to a random dart throw from their portfolio. Managers often neglect selling decisions, viewing them as less important than buying, leading them to sell assets they recently bought (endowment effect) around six months, missing out on the estimated nine-month alpha decay period.
Choice Architecture and Making it Easy
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(00:48:22)
  • Key Takeaway: The most effective way to improve decision-making across complex areas like retirement savings or tax compliance is to implement choice architecture that makes the desired action easy, such as changing the default setting.
  • Summary: Changing the 401k default to automatic enrollment invested an estimated $2 trillion that would have otherwise sat in cash, demonstrating the power of choice architecture. Thaler’s mantra is to ‘make it easy’ by removing obstacles preventing people from doing the right thing, as demonstrated by UK tax letters that increased on-time payments simply by changing the wording.