17 research outputs found

    Are Online Reviews Helpful for Consumers? Big Data Evidence From Services Industry

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    This chapter explores the elements influencing online reviews\u2019 usefulness by focusing on the language that consumers use when writing online reviews and on reviewers\u2019 attributes. By using text mining tools, the authors investigate how reviews\u2019 language affects their usefulness perception (i.e., the number of times readers have marked them as useful). The dataset consists of more than 54,000 online reviews from the most frequently used e-WOM source currently available and covers the period 2005-2017. The results suggest that word count and some of reviews\u2019 linguistic features (e.g., the subjectivity score, authenticity score) influence their usefulness perception. Reviewers\u2019 attributes (i.e., their number of reviews, age, class, and gender) also affect their reviews\u2019 perceived usefulness. The chapter concludes by describing the study results\u2019 implications for theory development, for empirical research, and for managerial practice

    Ractopamine Hydrochloride Did Not Impact Carcass Traits, Muscle Fiber Types, or Sensory Traits of Long-Fed Yearling Heifers

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    Crossbred heifers ( = 64; animal was the experimental unit) were assigned to 1 of 8 treatments in a 4 × 2 factorial arrangement, with 4 treatment days-on-feed (DOF; 79, 100, 121, 142) and 2 levels of ractopamine hydrochloride (RAC) supplementation (0 or 300 mg × hd × d). At 24 h postmortem, carcass traits were determined by trained personnel and longissimus samples were removed for muscle fiber type analyses. Boneless strip loins (IMPS #180) were fabricated and vacuum-packaged at 24 h postmortem and aged for 21 d, cut into 2.54 cm thick steaks, then frozen for no longer than 6 mo. After thawing for 24 h, Warner-Bratzler shear force (WBSF) and trained sensory panel analyses were conducted. Marbling was greater ( 0.05) on carcass traits, muscle fiber histology, or meat quality. The addition of RAC had no effect ( > 0.05) on Warner-Bratzler shear force. Feeding RAC had no negative impacts on carcass traits or meat quality and actually improved marbling scores in longer-fed heifers
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