Identificabilidad de Modelos de Elección Discreta con Mecanismos de Elección Heterogéneos
Palabras clave:
modelos de elección discreta, múltiples heurísticas, racionalidad limitadaResumen
Analizamos la identificabilidad de modelos que admiten la posibilidad que los individuos tengan diferentes mecanismos de elección, en forma tanto teórica como empírica. Para esto, derivamos una expresión basada en la matriz de información del modelo, que explica cómo la diferencia de comportamiento de cada mecanismo de elección afecta su identificabilidad. Luego, simulamos una población consistente con las heurísticas modeladas sobre un banco de datos de elecciones reales de modo de transporte. Del experimento analizamos si es posible identificar heurísticas de elección distintas del mecanismo de Maximización de la Utilidad (RUM). Concluimos que el mecanismo de elección más identificable del RUM es el de Eliminación por Aspectos (EBA), mientras que el menos identificable es la Minimización del Remordimiento (RRM); la heurística de elección Satisficing parece un caso intermedio.
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