Heuristics for deciding collectively rational consumption behavior

F. Talla Nobibon, L.J.H. Cherchye, B. de Rock, J. Sabbe, F. Spieksma

Research output: Contribution to journalArticleScientificpeer-review

9 Citations (Scopus)


We propose a directed graph for testing whether observed household consumption behavior satisfies the Collective Axiom of Revealed Preferences (CARP). More precisely, the data satisfy CARP if the graph allows a node-partitioning into two induced subgraphs that are acyclic. We prove that partitioning the obtained graph into two acyclic subgraphs is NP-complete. Next, we derive a necessary condition for CARP that can be verified in polynomial time, and we present an example to show that our necessary and sufficient conditions do not coincide. We also propose and implement fast heuristics for testing the sufficient condition. These heuristics can be used to check reasonably large data sets for CARP, and can be of particular interest when used prior to computationally demanding approaches. Finally, based on computational results for both real-life and synthetic data, we conclude that our heuristics are effective in testing CARP.
Original languageEnglish
Pages (from-to)173-204
JournalComputational Economics
Issue number2
Publication statusPublished - 2011


Dive into the research topics of 'Heuristics for deciding collectively rational consumption behavior'. Together they form a unique fingerprint.

Cite this