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Economists and a study warn of effects of California’s proposed billionaire tax

By

Coverage spectrum

Covered by 4 outlets, mostly right-leaning (75%).

6 articles in total, 1 of them opinion. The spectrum counts each outlet once and leaves opinion out. How we measure bias

Crowd holds blue signs reading "Billionaire Tax Now" and "Keep Hospitals and ERs Open," faces cropped out.
Image via CBS NewsHow images are chosenReport this image

Proposition 40, on California’s Nov. 3 ballot, would levy a one-time 5% tax on residents whose wealth exceeds $1 billion, according to The Center Square. Stanford economists have cautioned that the tax could have unintended consequences, according to CBS News. Economists told The Center Square the measure could shrink the state’s tax base by $5 billion to $7 billion. According to Reason, a study finds that 85 percent of “plausible scenarios” produce negative revenue as wealthy residents leave, at a cost of $39 billion. The measure is meant to raise about $100 billion for public programs including K-12 education, Medicare and food assistance.

Headline and summary written by Mantle’s AI from the coverage below, under published rules. How this works

What happened

Key points

Each point shows who reports it, from Far Left to Far Right.

  1. Stanford economists have cautioned that a billionaire tax could have unintended consequences.

    Reported byLeft1Far Right1See the outletsHide the outlets
    Left
    CBS News
    Far Right
    Townhall

  2. Proposition 40 would levy a one-time 5% tax on residents whose wealth exceeds $1 billion and is on the Nov. 3 ballot.

    One outletThe Center Square· Right

  3. Economists told The Center Square the tax could cut the state’s tax base by $5 billion to $7 billion.

    One outletThe Center Square· Right

  4. According to Reason, a study finds 85 percent of plausible scenarios produce negative revenue, with a cost of $39 billion.

    One outletReason· Right

  5. The measure is meant to raise about $100 billion for public programs such as K-12 education, Medicare and food assistance.

    One outletThe Center Square· Right

What is contested

Where accounts differ

Points the coverage does not agree on, and who says what.

  • The billionaire tax would raise the revenue its advocates hope for.

    Pacific Research Institute economist Wayne Winegarden, quoted by The Center Square, says the tax would fall short of the revenue advocates expect and would curb the economy; advocates of the measure hope it will generate that revenue.

How each side tells it

Compare views

All four outlets report warnings from economists or a Stanford study about the billionaire tax. The left-side report stresses unintended consequences, while right-side coverage gives dollar estimates of lost revenue.

  • the left

    1 outlet

    CBS News’s headline presents the tax as likely to backfire, attributing the warning to a Stanford study.

    California billionaire tax could backfire, Stanford study says
    CBS NewsLeftAll left-leaning headlines

  • the center

    No coverage yet

    No center outlet that Mantle follows has covered this story yet. That absence is part of the picture.

  • the right

    3 outlets · 1 opinion

    Right-side headlines put economists’ forecasts and dollar estimates of lost revenue first, while the Far Right opinion piece at Townhall calls the Stanford study a cold dose of reality.

    Economists: Billionaire tax Absolutist framing“would hurt, not help”The headline states an economists’ forecast as a settled outcome, while the text says the tax could undermine the economy.More neutral: could hurtDisagree with this highlight?, California
    The Center SquareRightAll right-leaning headlines

The words they chose

Language to notice

Words that carry a judgement beyond the facts. Tap a highlighted word anywhere on the page to see why.

  • Left0

    No loaded words in its own voice.

  • Center

    Has not covered this story.

  • Right2

    stifling innovationwould hurt, not help

In the outlets’ own words

  • Loaded verb

    stifling innovationMore neutral: high tax rates that critics say may reduce innovation

    The piece states as fact that tax rates harm innovation, a contested claim it does not support from the study.

    …the state's continued influx of businesses fleeing the state, high tax rates stifling innovation, and the continued rising costs of living.

    Used byTownhall (Far Right)

  • Absolutist framing

    would hurt, not helpMore neutral: could hurt

    The headline states an economists’ forecast as a settled outcome, while the text says the tax could undermine the economy.

    Economists: Billionaire tax would hurt, not help, California

    Used byThe Center Square (Right)

See the full language guide

See for yourself

Side by side

What each side leads with and what it leaves out. Open a side to read its headlines.

From the left

1 outlet

Leads with

  • Stanford study’s cautions
  • unintended consequences of the tax
See the headline from the leftHide the headlines
  • CBS NewsLeft

    California billionaire tax could backfire, Stanford study says

    A new analysis from Stanford economists cautions that enacting a billionaire tax could have unintended consequences.

    Read at CBS News (opens in a new tab)

From the center

0 outlets

No center outlet that Mantle follows has covered this story yet. That absence is part of the picture.

From the right

3 outlets · 1 opinion

Leads with

  • revenue losses of $5 billion to $7 billion
  • $39 billion cost estimate
  • wealthy residents leaving
See the 4 headlines from the rightHide the headlines

Articles you open from here build My Mix, a private picture of how your reading spreads across the spectrum, kept on this device. What is My Mix?

The left is Far Left and Left together. The right is Right and Far Right together. Every outlet keeps its own five-point rating.

Who reported it when

How the coverage built up

  • Left

    First to report

    CBS News, Oct 19, 2:16 PM EDT

  • Center

    No report yet

    From the outlets Mantle follows

  • Right

    1 day 1 hr later

    Its first report, Oct 20, 3:50 PM EDT

See the order the outlets reported inHide the order
  1. CBS NewsLeftOct 19, 2:16 PM EDT
  2. ReasonRightOct 20, 3:50 PM EDT
  3. The Center SquareRightOct 20, 8:30 PM EDT

Times are the ones the outlets published in their own feeds, in Eastern time. Opinion is left out. Just the News gave only a date, so it is not placed.

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