2014-12-29
Explanation
The Joke
A professor explains the concept of a "dollar auction" from economics. In a dollar auction, you auction off a dollar bill, but both the winner and the runner-up must pay their bid amounts. This leads to a surprising result: if you have bid 99 cents and someone else bids $1.00, you can either give up and lose 99 cents, or bid $1.01 and only lose a net of one cent (since you win the dollar back). So it is always rational to keep bidding -- but this logic leads to infinite escalation.
The professor explains that the point is to illustrate how rational individual choices can lead to irrational collective behavior. She then muses about real-life applications: "I'''ll wait for my spouse to call off the marriage. That'''ll be easier."
The Humor
The joke works by first presenting a genuinely interesting economic concept (the dollar auction, also known as an escalation auction), then applying it to a failing marriage. Just as bidders in a dollar auction keep escalating because quitting at any given point seems worse than continuing, a spouse in an unhappy marriage might reason that it is always easier to wait for the other person to initiate the divorce rather than doing it themselves. The humor lies in the dark, deadpan application of game theory to a personal relationship -- she has intellectually understood the trap of irrational escalation through rational steps, and yet she immediately falls into the exact same pattern in her own marriage.
References
The dollar auction is a real concept in game theory and behavioral economics, originally designed by economist Martin Shubik in 1971. It is used to demonstrate how rational decision-making at each individual step can lead to collectively irrational outcomes, a concept related to the sunk cost fallacy and escalation of commitment.