Three settings, each drawn in the clean pedagogical style of Bordalo et al. (2016). Two are abstract illustrations (triangles & circles; boys & girls) and one is political. In every setting an individual's group and trait are carried by two separate visual features. Each setting card below holds its three treatment figures — Symmetric, Majority, Minority — and a switch (top right) that flips all three together between Two groups (identity-inference view) and One group (pooled population, marginal prevalence only). Equal group sizes throughout (μA = μB = ½).
Treatments
The three calibrations used in every setting — share holding trait 1 in each group.
| Treatment | Group A (π1A) | Group B (π1B) | R(1,A) |
|---|---|---|---|
| Symmetric | 0.65 | 0.65 | 1.00 |
| Majority | 0.65 | 0.95 | 0.68 |
| Minority | 0.45 | 0.65 | 0.69 |
Triangles & Circles
An abstract illustration. Groups are a triangle and a circle (the shape), and the binary trait is encoded by colour — green vs blue.
Boys & Girls
A second abstract illustration, distinct from the shapes above. Groups are boys and girls figures, and the binary trait is encoded by a t-shirt colour, in the style of Bordalo et al. (2016).
Icon convention after Bordalo, Coffman, Gennaioli & Shleifer, “Stereotypes,” Quarterly Journal of Economics (2016). Icons drawn originally for this page.
Democrats & Republicans
Groups are Democrats and Republicans in party colours blue and red, and the binary trait is whether the figure wears a globe hat (supports the climate policy) or not.