Unfortunately, I am out of ideas. Given this turn of events, I feel that it is time we go to Purple Alert.
Have we tried the "good old" game theory related dilemma? I have
one of the traveler's dilemma and I adapt it into a more realistic scenario, but not sure it's related to ethical or not. It's a price related problem, but also testing if you are greedy, honest, or cunning /calculated.
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Let's say you and your coworker went on a business trip, and you two are not that familiar with each other, but just share the same flights. Each of you is given an identical company-issued suitcase. And on your return flight, an unfortunate event happened : the flight company lost both of your luggage.
The insurance company will pay the loss in cash, so you /your coworker can buy new suitcase to return them to the company for compensations. Although the insurance company wants both of you write down the assessment value of the suitcase first.
The insurance company already knew a suitcase is worth $50 to $200 on the market, but doesn't know what kind of suitcase you are using, they are lost after all. Its just both of your words count. And your own company doesn't care what kind of suitcase you replaced, as long as they are available to use, and your company don't keep detailed records.
But the insurance company is cleaver to set up a mechanism for this kind of situation, so no one will try to cheat on filling the highest price. You and your co-worker each fill a number separately, not knowing the answer of another, and the insurance company will choose the lower price from your answers. There is also an incentive to promote "honesty", and punish liars, that the one who fill the lower number will receive a bonus of $50. And on the other hand, "the liar" (who fills higher price) will not just compensate using the common honest price (lower price), but also minus the $50 as punishment which will be given as another one's reward. Or if you both choose the same, then there will be no reward or punishment. (But given not knowing what other will do, and the price range is large, so not likely to choose the same price).
And here is the choices :
1. Choose a high / greedy price (from $150~$200)
2. Choose a middle / modest price (from $100~$150)
3. Choose a low / calculated price (from $50~$100)
*. Always choose the lowest $50, and highest $200 can be added as options.
(Perhaps it can be divided into more level like every $25 with 6 level, or $30 for 5 level)
Extra : you may think you can go online and check the real price of that particular suitcase price, but it's not relevant here. Since the only factor are what you think your coworker will choose, and the only ones in the world who know(and case) what kind of suitcases you used are the two of you. Is your word against another.
A quick evaluation I can tell you, if you choose the lowest price, and your coworker choose anything higher, will grant you $100 ($50 for price + $50 bonus), and leave your coworker with $0 ($50 price - $50 punishment). On the other case, if you choose very high, like $170 and you coworker is even more greedy to choose $200, then your will get more than the highest price as $220 ($170+$50) and your coworker get $120 ($170-$50). However, if your coworker choose a not so greedy price of $150, then he/she will get $200 ($150+$50), and leaves your only $100 ($150-$50).
P.S game theory has its prediction on this one, but I am not convinced that people will actually make that decision.