In the US military, returns to education are mediated almost completely by hierarchical rank.

Blair Fix

In The Social Environment as a Cause in Economics I argued that human behavior has two parts: Individual variation An environment that acts on this variation  To illustrate these two parts, I used the example of the peppered moth. This species comes in two colors — black and white. Which color is better for survival? It depends on the environment. On natural-colored trees, white moths are better camouflaged. So being white is better.

Messaggi di Rogue Scholar

How Hierarchy Can Mediate the Returns to Education