February 2009

IZA DP No. 4046: Choice by Lexicographic Semiorders

published in: Theoretical Economics, 2012, 7 (1), 1-23.

We propose an extension of Tversky's lexicographic semiorder to a model of boundedly rational choice. We explore the connection with sequential rationalisability of choice, and we provide axiomatic characterisations of both models in terms of observable choice data.