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A hairbrush gift decision: when every pair has a winner

Three friends compare two actual brush proposals with postponing a gift purchase; their fictional pairwise preferences produce a complete majority cycle.

A hairbrush gift decision can remain unsettled even when three people have each written a clear preference. In the fictional example below, every two-option comparison has a majority. Yet those comparisons point around a circle: one proposal beats a second, the second beats a third, and the third beats the first.

This is an invented shopping discussion, not a survey or a test of either brush. Three friends are considering one gift, with postponing the purchase as a separate proposal. Their written rankings supply every preference used in the exercise. No ranking establishes what the intended recipient wants, whether a brush suits that person, or whether anyone has authorized an order.

Keep the three proposals identifiable

Call the first proposal A: consider the selected military-style brush offer. Call the second B: consider the selected oval brush offer. Call the third P: postpone this purchase. These letters keep the worksheet short. They do not represent product ratings, quality grades or a recommendation that postponement is always preferable to buying.

The JASPÈ military hair brush offer names boar bristle. Its description repeats that title, and its catalog brand is recorded as unknown. The photograph shows one handleless brush with bristles. This brief account supplies no dimensions, applicable care method or independently tested hair result. Keep those questions open if they matter to a real purchase.

The Jaspè oval pneumatic hair brush offer names synthetic pins, while its catalog brand is also unknown. Its photograph shows an oval handled brush and a KOH-I-NOOR marking. That marking does not resolve the title, catalog and supplied-brand relationship here. Confirm the actual offered identity rather than treating this article as manufacturer authentication.

The exercise gives the friends no performance evidence beyond those limited accounts. Their rankings are stipulated fictional inputs. A person can prefer asking about one proposal before another, but that preference cannot fill missing product information. Likewise, choosing to postpone would describe a purchasing intention, without diagnosing a defect in either brush.

Read pairwise gift preferences from whole lists

For pairwise gift preferences, give each fictional person a complete ordered list. Maya places A first, B second and P third. Noor places B first, P second and A third. Owen places P first, A second and B third. In this exercise, a higher position means that person prefers that proposal to a lower one.

Keep all three lists visible throughout the comparison. Maya's A, B, P list does not change when a different pair is considered. Noor retains B, P, A, and Owen retains P, A, B. There are no tied positions, missing proposals or additional people in this deliberately small worksheet.

The comparison rule is equally limited: present two proposals and give each person one preference between them, taken from their existing list. The proposal preferred by two of the three people wins that comparison. A two-person majority identifies the winner of that pair. The rule has not yet said how a final proposal will be chosen from three.

For example, Maya prefers B to P even though A is her first choice overall. Removing A from one comparison does not move P above B in her written list. Read the relative positions of the two proposals actually being compared. Do not count only first-place entries when the stated rule asks a different question.

Compare A with B before drawing a conclusion

Place A and B beside the three lists. Maya prefers A because A appears above B in her list. Noor prefers B because B appears above A in hers. Owen prefers A because his list places A above B, even though P is his first choice overall.

A therefore wins the A-versus-B comparison by two preferences to one. Write the result with its full meaning: A is preferred to B by Maya and Owen under the stated rule. This records the people and the pair. It does not say that A beats every proposal available to the group.

Owen's contribution is easy to overlook if someone reads only the first line of each person's list. His first choice is P, but P is absent from this comparison. Owen still has an explicit A-versus-B preference. The complete list supplies it without asking him to invent another answer halfway through the exercise.

Check the other two comparisons

Now compare B with P. Maya places B above P, and Noor does too. Owen places P above B. B wins this comparison by two preferences to one. The two supporters are Maya and Noor, a different pair of people from the supporters of A over B.

Finally compare P with A. Maya places A above P. Noor places P above A, and Owen does too. P wins by two preferences to one. Keep this result alongside the other two, rather than discarding it because an earlier comparison made A look promising.

The complete record is now A over B, B over P and P over A. Each result came from the same three unchanged lists and the same two-of-three rule. No person needed to reverse their own ranking. The majority supporting one comparison need not consist of the same people as the majority supporting another.

Check each individual's ordering separately. Maya has one first, one second and one third choice; so do Noor and Owen. The circular result belongs to the collection of pairwise comparisons. It is not evidence that a person has written A above B and B above A in the same list.

A cyclic majority choice leaves no unbeaten proposal

A cyclic majority choice describes this particular worksheet: following the recorded winners takes you from A over B, to B over P, to P over A. Ask whether any proposal defeats both others. A loses to P. B loses to A. P loses to B. None meets that requirement in the example.

There is still useful information in the comparisons. They tell the friends exactly which two-person preference applies to each pair. What they do not supply is a proposal that beats both alternatives. Calling one comparison's winner the group's overall winner would add a conclusion the complete record does not support.

Also distinguish this question from counting first choices. Maya's first choice is A, Noor's is B and Owen's is P. That gives one first-choice entry to each proposal. It answers a different counting question from the three two-option comparisons. The exercise supplies no additional tie-breaking rule for that count.

Changing the comparison order can change the last survivor

Suppose the friends try an elimination arrangement: compare two proposals, keep that pair's winner, and compare it with the remaining proposal. Begin with A against B. A survives. Compare A against P next, and P survives. Under this particular order, P is the last remaining proposal.

Reset the exercise to the original three lists. Begin instead with B against P. B survives. Compare B against A next, and A survives. The last remaining proposal is now A. Nobody changed a preference; the comparisons were simply presented in a different order.

A third order leaves B last. Begin with P against A, which P wins. Then compare P against B, which B wins. These three complete traces show three different final survivors under three different starting pairs. They establish that the order matters for this invented profile and elimination arrangement.

Do not turn that observation into a claim about every group vote. This worksheet contains three particular rankings and one particular elimination rule. It gives no frequency for such outcomes in real households and no proof that a different profile would behave the same way. Preserve the inputs when sharing the result.

Check the boundary with a different fictional profile

To see why the actual lists matter, set the first worksheet aside and make a separate one. In this second invented profile, all three people rank A first, B second and P third. A beats B by three preferences to none, and A also beats P by three to none. This profile does have a proposal that defeats both alternatives.

B also beats P in the second worksheet, but that does not remove A's two wins. The comparison record is different because the preferences are different. Keep the second profile on a separate page. It is a check on the limits of the earlier conclusion, without correcting or replacing the first profile's circular results.

Return to the original lists when checking the friends' unresolved discussion. The unanimous example supplies no new vote from Maya, Noor or Owen in that first version. Likewise, a real recipient's answer would be new information to record, rather than permission to rewrite an earlier comparison as though it had always contained that answer.

Agree what a result would authorize

In the fictional discussion, the friends can stop before ordering and decide what question they actually need answered. Perhaps they want a proposal for the recipient to consider. Perhaps they want permission to seek missing supplier information. Neither task is automatically the same as authorizing someone to buy a brush.

If they choose another decision rule, name it before treating its result as settled. The group might agree to ask the recipient directly or leave the purchase postponed while questions remain open. Those are additional choices in the fictional discussion. This article does not establish that one is the fairest rule or that everyone must accept it.

Keep any later product answer attached to the exact offer it concerns. A reply identifying the oval brush's supplied brand would not provide the military-style brush's care instructions. If new information changes somebody's preference, record a new list and inspect the new comparison. Do not silently replace an old input while retaining the earlier tally.

Leave care and wrapping to their own decisions

The hairbrush care and replacement-cost guide follows supported Bass 206 and Kent LR6 care before reconsidering a replacement purchase. Those instructions belong to those constructions. They supply no method for either brush selected here, and a fictional majority cannot establish which treatment is appropriate for a real brush.

The rectangular holiday gift-box wrapping guide begins with a gift already chosen and suitably boxed. Its paper overlap, end-fold and recipient-identification task comes later than this unresolved selection exercise. A wrapped parcel would not demonstrate that the friends had agreed on the purchase inside it.

Finish the hairbrush gift decision worksheet with the three lists and all three comparisons still visible. Each pair has a two-person winner, yet each proposal loses another comparison. Record that result honestly. A further agreement may settle what the friends do next; the existing tally alone has not chosen an unbeaten proposal or authorized an order.