Discrete Dynamics in Nature and Society / 2016 / Article / Tab 2

Research Article

Exploring Determinants of Attraction and Helpfulness of Online Product Review: A Consumer Behaviour Perspective

Table 2

List of variables.

VariableDescriptionValueReference studies

Dependent variable
Review_AttractionTotal votes for the reviewsEqual to or greater than zero
Review_HelpfulnessThe ratio of number of helpful votes to total votesContinuous values between 0 and 1

Independent variable
Review_ExtremityThe difference between the score of individual review and a standard value of 3Integral value between and 2Mudambi and Schuff [6]
Peng et al. [7]
Dellarocas et al. [8]
Kim et al. [9]
Forman et al. [10]
Ghose and Ipeirotis [11]
Review_ReliabilityThe number of characters in review textContinuous values greater than 1Mudambi and Schuff [6]
Reviewer_RankRank of reviewer based on Amazon systemContinuous values greater than 1Forman et al. [10]
Baek et al. [12]
Ngo-Ye and Sinha [13]
Guo et al. [14]
Review_WidthThe ratio of number of features mentioned in the review to the maximum number of features described in the reviews of that particular productContinuous values between 0 and 1
Review_DepthThe ratio of the number of characters to total number of features outlined in the reviewContinuous values between 0 and 1Mudambi and Schuff [6]
Review_ObjectA binary variable indicates whether a review presents a mixture of both subjective and object information or notIt takes value of 1 when there is mixed information; otherwise, the variable has value of 0Krishnamoorthy [15]
Ghose and Ipeirotis [11]
Review_SentimentA binary variable indicates whether a review conveys a mixture of positive and negative attitudes towards the product featuresIt takes value of 1 when there is mixed sentiment; otherwise, the variable has value of 0Cao et al. [4]
Hao et al. [16]
Sun [17, 18]

Moderator variable
Commodity_CategoryA dummy variable indicates the type of commodityIt takes value of 1 if the product is search commodity and its value is 0 for experience commodityMudambi and Schuff [6]

Article of the Year Award: Outstanding research contributions of 2020, as selected by our Chief Editors. Read the winning articles.