Do you agree with Trump's "if they screw you, screw them back 10 times as hard" philosophy?
Get even with people. If they screw you, screw them back ten times as hard, I really believe it.
-- DJT
Do you share this philosophy?
In game theory, explorations of the Iterated Prisoners' Dilemma show that the best overall strategy is reciprocation with forgiveness, i.e., in game theory, Trump is playing a losing strategy. Do you think this result is relevant in general life?
Posted May 4, 2018, 8:37 PM UTC
In game theory the most successful strategy is some variant of tit-for-tat, if you are assuming almost everyone is a rational actor trying to maximize their score, and you are comparing approaches over a long time against many opponents with a variety of strategies. That's basically Axelrod's tournament, which is itself basically a simplification of all human interactions.
Trump basically advocates tit-for-tat, or maybe for a variant called two-tits-for-tat, where each defection by an opponent is responded to with 2 turns of defection. This strategy would beat tit-for-tat against an uncooperative opponent but lose or tie against a cooperative opponent.
IIRC the best performing strategy in at least one IPD tournament was to punish defection by only one defection in return. Or am I misremembering?
Basic Tit-for-Tat won in Axelrod's original tournament but there's been a lot of discussion since then about how small variations on Tit-for-Tat might be better depending on the conditions of the tournament. Basic Tit-for-Tat just repeats the opponent's last round, so yes, one defection.
I just had another thought. One difference between an IPD tournament and real life is that you get to choose who you play against in real life. As in people can look at a belligerent punch-bach-ten-times-harder actor and say "never mind that asshole, I'll do business with someone else". In real life, doesn't having a disproportionately aggressive strategy mean you'll lose opportunities to engage productively with people?
You choose in some ways but for the most part it's all random interactions in life too. You didn't "choose" your boss necessarily, although I guess you can leave and roll the dice again. Likewise you don't choose customers, or case workers, etc etc.
All-uncooperative strategies do about as well in IPD tournaments as in real life, which is to say, pretty poorly.
Are you aware of work on Generous Tit For Tat and Win Stay Lose Shift? Tit For Tat is a good stepping stone towards cooperative strategies, but is eventually replaced by GTFT which allows for forgiveness in the presence of mistakes (more realistic than the error-free Axelrod tournaments). Neither TFT or GTFT is stable in the long term, but Win Stay Lose Shift is both forgiving and stable in the long term.
Against an uncooperative opponent GTFT loses an extra round in four rounds vs TFT, and a two-tits-for-tat strategy "ties" one extra round every round in four vs TFT and 2 more vs GTFT. So if you consider China cooperative, then you'd have a point, but that's a hard sell.
WSLS is kind of an "asshole" strategy because it will continue to scam a cooperative opponent over and over, and that's definitely not where we want to go with our foreign policy. Against an all-cooperative opponent it would be the same as TFT.
Do you share this philosophy? Do you think this is a good one to live by?
Well, in game theory it works, which addresses the OP's question.
Okay, but what if we step outside of game theory and talk about real life for a second. Is this a method that you live by?
I'm not a real estate mogul, so no. But what works in one area of life might not work in another.
I play generous tit-for-tat in real life but most of the people I deal with are nice and I don't run a large company or nation-state.
If I ran a company I'd probably play cooperative until first deception, then blacklist forever (never cooperate again). For a nation-state it's a very complicated question.