The dynamics of higher-order novelties.

Studying how we explore the world in search of novelties is key to understand the mechanisms that can lead to new discoveries. Previous studies analyzed novelties in various exploration processes, defining them as the first appearance of an element. However, novelties can also be generated by combining what is already known.

The number of boundedly rational choices on four elements.

We use a combinatorial approach to identify and compute the number of non-isomorphic choices on four elements that can be explained by several models of bounded rationality. •These estimates offer a tool to analyze choice experiments designed on four-element sets.•The presented methodology allows the application of an algorithm to estimate the fraction of choices justifiable by these models on finite sets.