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Share your dilemmas and get honest opinions from other Mumsnetters.

A social experiment - your view?

48 replies

poetryandwine · 12/11/2025 12:26

Rafael Behr writes today in the Guardian about a social experiment that was new to me.

In a society, each person can contribute whatever % of their personal wealth they like to a common fund. No consultation between participants is allowed. After all contributions are made, the money in the fund will be trebled and distributed to all members of the society equally.

a. What % of your personal wealth would you contribute?

b. What % of personal wealth do you think current supporters of the various British political parties would contribute?

I am genuinely perplexed. I think my own answer depends on reading the room - the more others will contribute, the more I will contribute (and the better off we will all be). I do feel some obligation, perhaps to the tune of the 1- 2% wealth tax one hears about, to those who are struggling. So that might have to be my answer. It is sad to feel cynical.

My intuition is that the Greens, Labour, Lib Dems, SNP, etc are more likely to be generous but I could well be wrong.

OP posts:
BunnyLake · 12/11/2025 13:37

I’d contribute about 0.01% because I’m just trying to survive. I don’t have money to generously put into an experiment.

BunnyLake · 12/11/2025 13:39

Did they actually use the word wealth or is that your word?

ErrolTheDragon · 12/11/2025 13:42

mumsnit1 · 12/11/2025 13:35

It also depends how many people are in the group as the more people the thinner the money is spread, not to mention the idea that the Gov would triple peoples resources is nonsensical.

Yes, it’s a pretty silly experiment.

stnvcfo · 12/11/2025 13:45

He has pinched this from John Rawles.

FudgeSundae · 12/11/2025 13:47

Anyone saying they would pay more than they already do in tax, just to be nice (?) already has the option to do so, via charitable giving or extra tax contributions. Anyone giving with the expectation that they will get more than they give is effectively gambling.

BrucesBarAndGrill · 12/11/2025 13:50

It would depend very much on how much wealth I had. If I could live comfortably once giving away a certain amount.

At the moment I'd probably say 20% as I could afford to do that and still pay bills, buy food and have a little bit left but no real savings.

There was a time when even 2% would have meant something not getting paid so I wouldn't expect people worse off to give the same amount.

If I had more I'd probably up to 50% as long as i could still pay bills... being selfish I'm not sure I'd ever give more than 50% unless in the serious millionaire category.

ickystickybubblegun · 12/11/2025 14:25

Would you not say 20% as that’s the lowest rate of tax?

poetryandwine · 12/11/2025 14:42

PuzzlesonSaturday · 12/11/2025 13:24

My intuition is that the Greens, Labour, Lib Dems, SNP, etc are more likely to be generous but I could well be wrong.

Lib Dems, possibly, but not the others.

Socialists like to be generous with other people's money. I'm not sure they are as generous with their own. Also, they don't want to be too generous, because a slightly impoverished, but grateful population is the easiest kind to control.

Edited

Interesting.

OP posts:
poetryandwine · 12/11/2025 14:46

unlimiteddilutingjuice · 12/11/2025 13:19

If I was asked, I would contribute 10%
That's the amount the bible suggests as a tithe. And it always used to be the basic level of income tax. (I think its 20% now).
So for me, that feels like a fair amount.
When I've come into money (compo payout, bonus etc) I've usually donated 10% to charity.

I also like the concept of tithing. I am trying to work up to 5-10% giving after tax. It is a bit scary, though.

OP posts:
poetryandwine · 12/11/2025 14:49

ArtTheClownIsNotAMime · 12/11/2025 13:27

This seems an utterly pointless thought experiment. What are you supposed to learn from it?

I think it is getting at altruism.

OP posts:
poetryandwine · 12/11/2025 14:49

Edit: getting at beliefs about altruism and self interest

OP posts:
DoAWheelie · 12/11/2025 14:50

30% was the figure that jumped into my head once I read the OP. I've not read the other replies yet (the no conferring bit).

Going to read them after I post this.

poetryandwine · 12/11/2025 15:07

SockBanana · 12/11/2025 13:34

This really depends on what you can afford, surely. But if it's voluntary and the people are unknown then it's 0%, because I know for sure the rich ones are not risking their money and I'm not giving them any of mine if they're not contributing.

You cant even depend on this being people you know. It's like the opposite of the drinks kitty, everyone puts in £20 and everyone decides what they 'take out'. There's always some fucker ordering a cocktail or doubles, while others have half a larger.

Plenty of better off people will put in. What makes you say otherwise? Oh, I know there are also plenty who will not! But generalising isn’t right.

I do like your analogy with the drinks kitty. I remember one of my first academic conferences; I was still a PG and it was in the UK. Out to a pub dinner with a fellow PG and a bunch of academics. The FRS in our group, who I am sure was the best paid member of the party, carefully totted up the cost of his food and left exactly that amount. He had bought no rounds and left no contribution to the tip. I suppose he would have said others had made free choices to spend their money on him and the waitstaff.

I sometimes feel this is a metaphor the way the middle class is going. Of course not having money is something else entirely.

OP posts:
CaminoPlanner · 12/11/2025 15:12

Like all these scenarios, the boring but true answer is always: it depends. If I had plenty of money to cover all the basics for my own life and the lives of my closest loved ones, then I'd be playing with fun money and might be very generous. i'd only offer what I could happily afford to lose, without expectation of gain - like lending money to a broke friend who you know won't pay it back.

But if I were struggling to pay bills, or knew my family members were, I would put in almost nothing and instead use the money where I knew it was needed.

PastaAllaNorma · 12/11/2025 15:18

Octavia64 · 12/11/2025 13:22

It’s known a tragedy of the commons.

if something is owned together (in common) there are always people who want a free ride.

ao jn the days of villages having common land, everyone got their cows to go there and eat the grass because it was free. You literally got a free lunch (for your cows).

but in most societies there are customs in place to stop anyone turning up and using the common.

for example, only commoners of the new forest have the right to graze their ponies on the new forest and their ponies are tagged so everyone knows who they are. If you randomly turn up and start letting your ponies eat for free they’ll get caught and it’ll be known you aren’t allowed to do that.

in the same way, most human societies have some way of supporting the sick and injured and old. But it often relies on social custom and ostracising or at least shunning those who don’t pay their share or don’t look after their parents like they should.

this game, because of the no talking rule, means that people can’t punish those who are seen to not contribute enough. So people won’t contribute enough.

Eleanor Ostrem, the Nobel prize winning economist, debunked the tragedy of the commons myth. It sounds plausible it would work like that, but she produced countless examples to show that in reality it doesn't.

parietal · 12/11/2025 15:23

This is a version of the Trust Game. It is more commonly played with 2 people. If you get repeated rounds, the optimal solution is to put lots of money in and get lots back. But people don’t always do that.

also, most lab versions start with everyone having equal wealth. In the “whole nation” version, the wealth is very unequal to start with.

SerendipityJane · 12/11/2025 16:05

This is all pretty much covered in Freakonomics.

poetryandwine · 12/11/2025 16:26

Thanks, @SerendipityJane

It is still interesting to wonder what individuals would do.

I agree collaborating with a trusted network of reasonable size makes it easier to take a risk.

OP posts:
EilonwyWithRedGoldHair · 12/11/2025 16:37

Currently my wages don't cover our outgoings therefore putting anything in would cause us financial issues. So I don't know.

Maybe of more interest is my initial reaction, which was that of course I'd put money in, followed by second thoughts after reading everyone's comments that most people wouldn't put anything in...

poetryandwine · 12/11/2025 17:43

EilonwyWithRedGoldHair · 12/11/2025 16:37

Currently my wages don't cover our outgoings therefore putting anything in would cause us financial issues. So I don't know.

Maybe of more interest is my initial reaction, which was that of course I'd put money in, followed by second thoughts after reading everyone's comments that most people wouldn't put anything in...

Would collaborating with a trusted network, if you had the money, make it easier for you? If I thought everyone in the society was sincerely planning to participate (accepting that people with no positive net wealth cannot) I would commit about 10%, hoping for a return of 15% or at least to break even.

If almost everyone with net wealth participates and I get less, at least the chances are that my money has gone to people who really need it. That helps.

OP posts:
EilonwyWithRedGoldHair · 12/11/2025 18:42

poetryandwine · 12/11/2025 17:43

Would collaborating with a trusted network, if you had the money, make it easier for you? If I thought everyone in the society was sincerely planning to participate (accepting that people with no positive net wealth cannot) I would commit about 10%, hoping for a return of 15% or at least to break even.

If almost everyone with net wealth participates and I get less, at least the chances are that my money has gone to people who really need it. That helps.

Yes, if it was a trusted network I'd be likely to take more of a risk.

poetryandwine · 12/11/2025 19:05

Sunflower2461 · 12/11/2025 13:25

Is this a one off payment and who is responsible for trebling the money? Surely this would be highly inflationary. Maybe I have entirely missed the point.

I suspect if voluntary and secret the vast majority of people would contribute nothing whatever party they support.

It is a thought experiment, assessing attitudes to altruism and equality. The money is trebled by magic.

I’ve clarified to myself that in this scenario I would like some return (in the real world at this time of life I am looking at the NHS) but if I was convinced that most people with positive net wealth were contributing as they felt they comfortably could, I would be very happy getting back 1.5 x my contribution and okay with less.

However at this point I don’t have that kind of confidence. It’s been interesting!

OP posts:
shuddacuddadidnt · 12/11/2025 19:12

It's been a while since I read Freakonomics, but this game is similar to the world of keeping promises in Moral Philosophy. It only works if everyone keeps their promises, otherwise it will end up with no promises being trusted, leading to the disappearance of a world with promises.

Given that we are now talking about money, even with an equal amount of money, people are not the same. Some will have the capability to generate more wealth, but as they put increasingly larger amounts in the pot, there will come a point when they will question why they are contributing so much when they don't gain anything more from their harder efforts.

This is where the term "all things being equal" comes in. Unfortunately in the real world, all things are not equal, so it ends up as an unrealistic mind game about altruism and justice.

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