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Economist Emmanuel Saez Helps Architect California’s Billionaire Tax Campaign

Emmanuel Saez uses his research on top incomes to help design the state's proposed wealth tax.

2 publishers · 2 articles · first seen 24 Sept 2026 · updated 44d ago

Headline and summary written by an AI model from the linked articles; not reviewed by a person. How this was made

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The odds

How the odds moved · Yes
0%50%100%95%23 Sept, 08:48 UTCnowWashington Post Business: The chart that inspired California’s billionaire tax campaign · 24 Sept, 09:00 UTCAll Content from Business Insider: A Nobel Prize-winning economist explained why he's backing California's billionaire tax · 24 Sept, 11:50 UTC

Each tick is a source publishing on this story

Price data
TimeChance of yes
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The story so far

2 publishers have covered this in 2 articles since 24 Sept 2026. Washington Post Business published first, on 24 September at 09:00 UTC; All Content from Business Insider followed 2h 51m later. The most recent article, from All Content from Business Insider, appeared on 24 September at 11:50 UTC.

Outlets reporting it: Washington Post Business (major outlet), All Content from Business Insider.

3 prediction markets price this story:

  • Yes — resolved “Yes” on 4 Nov 2026. The market resolves to Yes if California holds an official one-time billionaire tax ballot initiative before November 5, 2026. Otherwise, it resolves to No. Readers often mistake any proposed legislation or campaign activity for the required official ballot vote.
  • In 2026 — the market puts it at 4%, with $1.1M traded in the last 24 hours, closing 3 Nov 2027. The market resolves to Yes if a specific one-time tax on billionaires appears on a California ballot and wins voter approval. It resolves to No if that initiative fails or does not appear on the ballot. Readers often mistake general billionaire taxes for this specific ballot measure.
  • Before Jan 1, 2027 — the market puts it at 1%, with $4k traded in the last 24 hours, closing 1 Jan 2027. The outcome is Yes if California's 2026 billionaire tax becomes legally operative between now and January 1, 2027. It is No if the tax does not become legally operative within that window. Readers often mistake the news story about the campaign for proof that the tax is already in effect.

Odds are the market's probability that the outcome happens, updated every few minutes. They are information about what traders expect, not a forecast we make and not investment advice.

Sources

Every article we clustered into this story. Headlines link to the publisher.

  1. The chart that inspired California’s billionaire tax campaign Washington Post Business ·
  2. A Nobel Prize-winning economist explained why he's backing California's billionaire tax All Content from Business Insider

Related prediction markets

Linked by software because they are about the same subject. Most ask a different question from the one this story reports, so read each market's own question. How often the link is right

  • Resolved Yes Yes 3d ago

    The market favoured Yes at 99% a day out, and it won. How often it's right

    Wrong market?

  • Kalshi In 2026 4% −16 $1.1M 24hends 3 Nov 2027

    Does the market have this right?

    Wrong market?

  • Kalshi Before Jan 1, 2027 1% −10 $4k 24hends 1 Jan 2027

    Does the market have this right?

    Wrong market?

Have your say

Your call. How does this end?

Free, no money involved. Calls are scored against the market's price when you make them, so backing an underdog that wins scores most. Leaderboard · Your calls

In this story

  • Emmanuel Saez
  • California
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