Documented path
Krugman studied economics at Yale and MIT, working as a research assistant to William Nordhaus while still an undergraduate, and developed the new trade theory that would earn him the Nobel Prize while in his mid-twenties.
Born in Albany, New York; family background not well documented in reviewed sources; studied at Yale University as an undergraduate.
Distinguished Professor of Economics at the Graduate Center of the City University of New York; Nobel Laureate in Economics (2008); prominent New York Times columnist.
Where the conditions came from
Each is placed on a −1 to 3 scale from documented evidence, and the three are never added together. A combined total would rank Paul Krugman against other people. Held apart, they explain why this path ran differently from another one—which is the only comparison this project supports.
The marble itself
+1Tailwind
What capability, drive, or early skill is documented in the person rather than their surroundings?
Self-described 'utterly conventional background.' Interest in economics sparked by Isaac Asimov's Foundation novels. Attended ordinary public schools. Good student who benefited from an early research apprenticeship with William Nordhaus at Yale, but not a prodigy with exceptional early ability.
Where it was dropped
0Neither way
What money, family standing, network, or permission was already in place before the work began?
Born in Albany, New York to Ukrainian Jewish family — mother Anita and father David Krugman. Grew up in suburbs (Merrill, Long Island). Ordinary middle-class background. No notable family wealth, academic lineage, or domain connections.
The shape of the track
+2Tailwind
What place, timing, institution, or peer group made the next step available?
Yale University (BA summa cum laude), MIT for PhD under Rudi Dornbusch. William Nordhaus mentorship at Yale was the key early break — Nordhaus hired him as research assistant after a term paper. The MIT economics ecosystem with Dornbusch, Solow, and others was a world-class environment for economics.
A −1 is a documented headwind, not a missing value; a 0 means the sources record nothing notable either way. Annotation confidence: High. These are analyst readings of what the sources record, not measurements of merit, talent, or effort. The twenty-two scored dimensions remain available inside the deeper research detail.
What moved through the conditions
Silence in a biography is not evidence that perseverance was absent.
A successful-only archive cannot recover all encounters, avoided setbacks, or alternative outcomes.
Strongest documented signals: Elite institution pipeline, Dedicated mentor / coach, Frontier geography.
Describes the starting position, not what the person later made of it.
Strongest observed levers: Scarce skill depth, Elite ecosystem network, Concentration intensity.
Measures what was present, not whether it was inherited, earned, self-built, external, or mixed.
The timeline below shows the sequence of work and transitions around the selected early milestone. It is evidence of a path, not proof that every step was necessary.
Legendary or globally iconic career standing. The tier summarizes documented career recognition through the data cutoff—not Paul Krugman's worth or future potential.
Question four · where did the leverage come from?
Each non-zero lever gets a best-supported origin, evidence signals, and confidence. Unresolved is the honest default when the biography cannot distinguish self-built, advantage-enabled, earned, external, or mixed.
One or more documented starting advantages plausibly enabled this lever.
One or more documented starting advantages plausibly enabled this lever.
One or more documented starting advantages plausibly enabled this lever.
One or more documented starting advantages plausibly enabled this lever.
One or more documented starting advantages plausibly enabled this lever.
One or more documented starting advantages plausibly enabled this lever.
A structural wave is external to the person, even when their position improved access to it.
One or more documented starting advantages plausibly enabled this lever.
One or more documented starting advantages plausibly enabled this lever.
This is a bounded inference from the current annotations—not a claim about private effort, merit, or the percentage of Paul Krugman's outcome attributable to any origin.
Structural luck, Encounter luck, Event luck, Outcome variance can change every arrow in the path. This successful-only dataset cannot observe the near-identical paths that did not break through, so luck stays visible and unscored.
Multiplying capacity documented later in the path. Measures what was present, not whether it was inherited, earned, self-built, external, or mixed.
Access or conditions documented near the beginning of the path. Zero means "no clear evidence in reviewed sources," not "advantage was absent."
Born in Albany, New York; not much is documented about his family's financial status in reviewed sources.
Not documented in reviewed sources.
Krugman studied at Yale, working as a research assistant to William Nordhaus, then completed his PhD at MIT at 24. His key insight on new trade theory came in January 1978 at age 25 after a conversation with advisor Rudi Dornbusch, leading to his foundational 1979 paper. The MIT economics ecosystem and mentorship from Dornbusch and Solow were crucial.
advantage confidence: High · source count: 3 · audit: source_verified · status: subagent_researched_beta