40% of Work Time Goes to Decisions — 61% of It Wasted
By McKinsey’s survey of more than twelve hundred global executives, managers spend close to 40 percent of their working time making decisions — and 61 percent say most of that time is used ineffectively. The invoice has been translated too: at a typical large company, roughly 530,000 manager-days a year — in the neighbourhood of 250 million dollars of wages — flow into inefficient deciding. Only one organisation in five believes it is good at decisions.
This number documents the data age’s least discussed paradox: measurement has never been more abundant, decisions never more tired. As dashboards multiplied, meetings did not shorten; they stretched. The missing thing, then, was never the number — the line between number and decision was simply never laid.
What the Number Says
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- Deciding: the dearest process, the least designed
- The complaint list points at the arrangement, not the data
- The dissenting finding: speed does not cost quality
The measurement’s three layers carry three separate diagnoses.
Deciding: the dearest process, the least designed
An activity eating 40 percent of working time has, in most organisations, no written arrangement: who decides, on which information, at what threshold, within what deadline? The business that draws flowcharts for its production line leaves its decision line to improvisation. The largest time item receives the least engineering — the inefficiency is not accident but the natural product of designlessness. And designlessness has a comfortable side: nobody is accountable, because no arrangement exists to be accountable to.
The complaint list points at the arrangement, not the data
The troubles participants name are familiar: committees without end, proposals with no clear approver, signal drowned in information bombardment. Note what is absent: “we lack data” is not on the list — “we are drowning in it” is. Read beside the fallow measurement, the picture completes itself: data idle in the barn, managers exhausted at the table, and no line between them. Two measurements, two shores of one story — one counts the supply’s waste, the other the demand’s fatigue.
The dissenting finding: speed does not cost quality
The measurement’s most valuable line demolishes a myth: organisations that decide fast also report deciding better. “Haste makes waste” fails to replicate in the corporate data — instead, slowness is usually the shadow not of care but of disorder. A well-built line accelerates and sharpens at once; the two are not rivals but twin products of the same arrangement.
What the Headline Misses
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- The bill grows with seniority
- The unit of waste is the meeting
- The problem is unconnected information, not too little
The headline sells the waste figure; the guidance sits in three details.
The bill grows with seniority
By the measurement, upper ranks spend an even larger share of their time deciding; a slice of the C-suite reports above 70 percent. Every improvement to the decision line therefore saves the most expensive hours in the building — the return on arrangement-work multiplies as it climbs the hierarchy. In a small business the same mechanism is starker still: the owner’s hour is the firm’s scarcest resource, and every minute saved on the line is drawn straight from that till.
The unit of waste is the meeting
Most decision time passes in meetings; the line’s repair point is therefore the table itself. How the number enters the meeting — on which page, against which threshold, answering which question — settles the decision’s fate before anyone sits down. That single line of the research is why the numbers reading gets its own tip in this set.
The problem is unconnected information, not too little
The “bombardment” complaint inverts a founding assumption — that more data would make deciding easier: every new unconnected number joins the noise. A number’s value comes not from its volume but from the decision wired to its end — a metric without threshold or owner carries load to the table, not light.
What a Business Should Do
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- Draw the decision line once
- Wire the number before the meeting
- Retire the fear of speed
The number’s decision translation is three steps.
Draw the decision line once
For recurring decision types, one page each: which number does this decision watch, what is its threshold, who decides, by when at the latest? A line drawn once repays on every recurrence — an improvised decision costs full price every time; a designed one gets cheaper with use.
Wire the number before the meeting
The meeting’s job should be interpreting the number, never hunting it: which number will be read, where its threshold sits and what a breach means are written in advance. A team that sits down to pre-wired numbers exits the 61-percent waste band within its first quarter.
Retire the fear of speed
The data does not support “faster means worse”, and neither should the business. Putting a ceiling on decision time — this type closes within so many days — does not cut quality; it cuts ownerless waiting. A waiting decision does not ripen; it goes stale.
The measurement itself is in McKinsey’s research.
If 40 percent of working time goes to decisions and most of it drains away, the highest-yield investment is not another dashboard — it is the short pipe between the number and the act.