MMasters in Business
← All episodes
Paul Krugman14 February 2020

Paul Krugman on Challenging Zombie Ideas

4Frameworks
10Insights

Listen

Frameworks in this episode

Insights & moments

The myth-busts, hot takes, explainers, and tools worth keeping.

Myth Buster· 1

Myth Buster06:34

Media Bias Often Means False Balance, Not False Facts

Krugman argues that mainstream outlets generally report individual facts accurately but struggle when evidence is overwhelmingly on one side. Their institutional preference for even-handedness can elevate false claims and make asymmetric political behavior appear balanced.

  • Factual accuracy does not guarantee informative framing
  • Some disputes do not have two equally credible sides
  • Even-handed presentation can create false equivalence
  • Institutional reluctance to call lies lies weakens public understanding

“there's a tremendous bias towards even handedness, even when the hands are not remotely even”

Paul Krugman · 07:45

“if Bush had had said that the Earth was flat, the headline would probably read views differ on shape of the planet.”

Paul Krugman · 07:01
#media#bias#false-equivalence#politics

Explainer· 5

Explainer08:05

How “Very Serious People” Manufacture Conventional Wisdom

The label describes influential figures who repeat establishment views and gain credibility because other prestigious people repeat them too. Krugman warns that titles, wealth, and think-tank affiliations can be poor proxies for subject-matter knowledge, especially when speakers have vested interests.

  • Consensus among prestigious people can become self-validating
  • Status is often mistaken for expertise
  • Think tanks may promote positions rather than conduct genuine inquiry
  • Powerful people may have conflicts or too little time for careful analysis

“very serious people are people who buy into what is a conventional wisdom of the time”

Paul Krugman · 08:15

“going to important people is absolutely the worst place to get information”

Paul Krugman · 10:04
#conventional-wisdom#expertise#media#status
Explainer11:13

Why Trade’s Small National Cost Can Devastate One Town

Free trade can increase aggregate national income while imposing concentrated losses on particular industries and communities. Economists underestimated this geographic concentration, exemplified by Chinese furniture imports hitting a city built around furniture production.

  • Trade can enrich a country without enriching every resident
  • Distributional losses may be geographically concentrated
  • National job-churn statistics conceal severe local shocks
  • The China shock research exposed effects economists had missed

“while free trade generally makes all countries richer, uh, it doesn't make everybody within the country's richer.”

Paul Krugman · 11:39

“the impacts of trade have tended to fall quite heavily on specific communities”

Paul Krugman · 13:14
#trade#inequality#communities#china
Explainer33:40

When Beautiful Economic Models Crowd Out Reality

Krugman attributes part of the profession’s pre-crisis failure to aesthetically appealing models of efficient financial markets. Economists embraced deregulation and lost touch with Keynesian knowledge needed after 2008 because elegant assumptions were allowed to outrank empirical realism.

  • Efficient-market models were intellectually attractive
  • A model’s elegance does not make its assumptions true
  • Deregulation created vulnerabilities before the crisis
  • Parts of the profession had forgotten useful Keynesian analysis

“Efficient financial market where asset prices are always right. Is gorgeous. It's esthetically pleasing”

Paul Krugman · 34:46

“Happens not to be true, but it's it's a huge lure for the profession.”

Paul Krugman · 34:58
#economics#financial-crisis#models#deregulation
Explainer49:22

Why CEO Pay Rose Far Faster Than Worker Pay

Krugman rejects the idea that dramatically higher executive compensation reflects dramatically better executives. He points instead to weakened unions, lower effective taxation of top compensation, self-influenced pay-setting, changing norms, and stock-based incentives that frequently fail to reward genuine performance.

  • Executives influence the selection of their compensation overseers
  • Weaker unions reduced resistance to extravagant pay
  • Lower tax rates increased the value of pursuing larger packages
  • Stock options can be reset after poor performance
  • Failed executives may still receive large severance payments

“CEOs have always pretty much appointed the people who decide how much that they'll be they'll be paid.”

Paul Krugman · 49:42

“people do good work for lots of reasons.”

Paul Krugman · 53:22
#inequality#ceo-pay#unions#compensation
Explainer55:43

Why Medicare for All Is Technically Easier Than Politically

Single-payer healthcare can work technically, as Taiwan demonstrates, but replacing existing private coverage creates a formidable political transition. Krugman expects an enhanced version of the Affordable Care Act because it can move toward universal coverage without abruptly displacing arrangements many people already use.

  • Medicare originally entered a market private insurers avoided
  • Many under-65 Americans already have private insurance
  • Replacing current coverage requires unusually high public trust
  • Universal systems can also operate through regulated private insurers
  • Incremental expansion may be more politically achievable than immediate single payer

“private insurers weren't interested in covering people over sixty five.”

Paul Krugman · 56:37

“what we will in fact get is Obamacare two point Oh”

Paul Krugman · 59:03
#healthcare#medicare#obamacare#politics

Story· 1

Story03:22

Why Krugman Made an Economics Textbook Story-Driven

Krugman and Robin Wells wanted to counter the perception that economics is irredeemably dry. Their textbook begins with real-world stories and then shows how economic reasoning makes sense of them, although producing and revising it required far more labor than expected.

  • Students often expect economics to be dry
  • Real-world stories can introduce economic mechanisms
  • Textbook production demands extensive revision work
  • The financial crisis forced an emergency rewrite of the banking chapter

“Most students come thinking economicis is this totally dry subject”

Paul Krugman · 03:56

“here's how economics helps me makes sense of these things.”

Paul Krugman · 04:11
#economics#education#textbooks#storytelling

Takeaway· 3

Takeaway14:22

A Safety Net Can Replace Income, but Not Lost Dignity

Targeted retraining programs have often struggled to repair communities disrupted by trade or technology. Krugman favors a strong general safety net that gives people resources to move or seek work, while acknowledging that transfers cannot fully replace the dignity associated with a lost occupation or community role.

  • Trade is not the only source of regional disruption
  • Technology can eliminate jobs even without globalization
  • A general safety net can address many kinds of shocks
  • Income support cannot automatically restore social dignity

“What you really wanted to straw long safety net so that at least some basics are supplies”

Paul Krugman · 14:58

“We can't replace the dignity, and but it's not clear that anyone knows how to do that.”

Paul Krugman · 15:52
#safety-net#labor#regional-policy#dignity
Takeaway27:48

The Post-Crisis Data Vindicated Keynesian Predictions

Krugman says modernized Keynesian models correctly anticipated low interest rates, subdued inflation, and the damaging effects of austerity after the financial crisis. He highlights that even the estimated fiscal multiplier—about 1.5—was supported by subsequent evidence.

  • Predicted hyperinflation did not occur
  • Austerity failed to produce the promised recovery
  • Keynesian models correctly anticipated major outcomes
  • The observed spending multiplier was approximately 1.5

“the models worked.”

Paul Krugman · 27:54

“the multiplayer is one point five.”

Paul Krugman · 28:43
#keynesianism#austerity#inflation#fiscal-policy
Takeaway1:25:27

Krugman’s Regret About Missing Misogyny in Economics

Krugman says the profession has confronted how badly women were treated in hiring, publishing, seminars, and private commentary. Although he does not believe he directly participated, he regrets being comfortable and oblivious rather than recognizing the pattern and campaigning against it.

  • Discrimination affected hiring and publishing
  • Women were treated differently in professional seminars
  • Anonymous media exposed degrading private attitudes
  • Comfort and privilege can conceal systemic harm
  • Not participating directly is different from actively opposing injustice

“we're realizing just how strong the misogyny within the profession has been”

Paul Krugman · 1:25:34

“I really wish that I had been more aware.”

Paul Krugman · 1:26:23
#economics#misogyny#discrimination#professional-culture