Publication

Using semi-open questions to integrate perceptions in choice models

Michel Bierlaire
2012
Reports

Abstract

This research investigates the measurement of perceptions by means of adjectives freely reported by respondents in semi-open questions. The objective of this work is to use these adjectives as indicators of perceptions in hybrid choice models (HCM) in order to derive demand indicators. Perceptions are indeed assumed to impact choice significantly and this type of data has not been integrated yet into HCM.We exploit a quantification of the adjectives performed by external evaluators (called experts). Given the subjectivity that is involved, we analyze the sensitivity of the results across experts who rated the adjectives. We observe that the aggregate indicators of demand, such as market shares, elasticities and values of time, are rather robust across experts. This is not the case for the disaggregate indicators that may vary substantially across experts.

Official source

https://infoscience.epfl.ch/entities/publication/b18e0b78-5f05-421c-bdcb-7fed4e68fb05

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Michel Bierlaire
2012
Reports

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/b18e0b78-5f05-421c-bdcb-7fed4e68fb05

About this result

Related concepts (32)

Adjective

An adjective (abbreviated adj.) is a word that describes a noun or noun phrase. Its semantic role is to change information given by the noun. Traditionally, adjectives were considered one of the main parts of speech of the English language, although historically they were classed together with nouns. Nowadays, certain words that usually had been classified as adjectives, including the, this, my, etc., typically are classed separately, as determiners. Here are some examples: That's a funny idea.

Data

In common usage and statistics, data (USˈdætə; UKˈdeɪtə) is a collection of discrete or continuous values that convey information, describing the quantity, quality, fact, statistics, other basic units of meaning, or simply sequences of symbols that may be further interpreted formally. A datum is an individual value in a collection of data. Data is usually organized into structures such as tables that provide additional context and meaning, and which may themselves be used as data in larger structures.

Rational choice theory

Rational choice theory refers to a set of guidelines that help understand economic and social behaviour. The theory originated in the eighteenth century and can be traced back to political economist and philosopher, Adam Smith. The theory postulates that an individual will perform a cost-benefit analysis to determine whether an option is right for them. It also suggests that an individual's self-driven rational actions will help better the overall economy. Rational choice theory looks at three concepts: rational actors, self interest and the invisible hand.

Related publications (32)

Using semi-open questions to integrate perceptions in choice models

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