MANIFOLD
What is the average probability of a Manifold market? (v2)
13
Ṁ1.3kṀ1.8k
resolved Mar 14
71%62%
41
29%16%
40
0.4%
35
0.4%
36
0.6%
37
1.1%
38
0.5%
22
0.4%
21
0.5%
23
0.5%
24
0.6%
25
5%
39
1.5%
34
2%
42
2%
43
6%Other

On March 13, 2024, I will run a script to calculate the average probability of open Manifold markets. Only binary markets will be counted.

Resolves to a linear interpolation between nearest percentages. I can resolve Other or partially Other as needed.

Examples:

53.59% will resolve to 59% 54 and 41% 53.

55.4% will resolve to 60% 55 and 40% 56

Any answers that are not integers between [0,100] resolve NO.

This is a rescaling of the original market: /Mira/what-is-the-average-probability-of

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I calculated 30,447 eligible markets.

Here's a histogram:

It looks like the average should be around 40%, and when I calculate it I get 40.709%. So it resolves 71% "41%" and 29% "40%", which is somewhat close to the market probabilities.

Why do you think the average is below 50%?

I can speculate. My guess is that there a lot of markets for asking about 10% or 20% events which would be notable if they happen, fewer about 80% or 90% events that people generally expect. Probably also there is "will X happen by deadline" where it resolves if it happens and the market isn't open long, but if not it slowly decays to 0.

I am curious if you can run some more scripts to see where the bias away from 50% is coming from.

@nathanwei see my two comments on the original market linked in the description, happy to do some more exploration if you have specific hypotheses.

The current average is 40.77%.

@3721126 holy moly that is a strong effect of "will X happen this year?" markets.

This doesn't weight markets by volume, right?

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