Empiriceme · Figure · Adage / Folk Law

Parkinson's Law

Work tends to expand to fill the time available for its completion.

Parkinson's satirical 1955 Economist essay opened with an elderly lady spending a full day on a postcard that a busy person dispatches in three minutes, and noted the Colonial Office growing as the empire shrank. The cleanest test is Bryan and Locke's in 1967: people given twice the time an addition task needed worked more slowly than people given just enough, because the generous deadline led them to set easier goals.

In practice

  • A task assigned three weeks in advance is completed in the final two days, and the three weeks were genuinely occupied.
  • A meeting scheduled for an hour uses the hour, and the same meeting scheduled for twenty-five minutes reaches the same decision.
Possible explanations
One explanation is goals, since a generous deadline leads people to set an easier target, which is what the one controlled test found. Another is bureaucratic: officials multiply subordinates rather than rivals, which is Parkinson's own account of growth.
In its favour
The bureaucratic growth Parkinson measured in the Colonial Office was real, and the experimental result on pace supports the everyday version.
Against it
It began as satire, it specifies no rate or limit, and the evidence concerns how fast people work rather than how well, so it says nothing about quality.
Standing
Satirical in origin. The one clean experiment finds the effect in pace and traces it to the goals people set; it is not a universal law, and it measures speed rather than quality. Compare student syndrome, which puts the expansion before the work starts.
Further reading
Wikipedia
Subject
Organizations & Bureaucracy
Essay
The folklore of office life

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