Nowadays, the multidimensional rating systems are increasingly popular in practice to help consumers evaluate multiattribute products or services. This study aims to examine the helpfulness and economic impact of multidimensional rating systems and the moderating effect of product type (ordinary, premium) from the perspective of product line. To identify the different effects of different product characteristics on consumers' behavior, multidimensional ratings and textual reviews are classified into two different sets according to the product attributes (functional, hedonic). Besides, the effects of review valence are considered simultaneously. Econometric analysis and text mining are conducted on the real data from autohome.com , a leading Chinese automobile rating platform. Results show that (a) in terms of perceived helpfulness, reviews with positive functional ratings or with negative hedonic ratings are perceived more helpful for ordinary product, whereas reviews with positive hedonic ratings are perceived more helpful for premium product. (b) Regarding product sales, the impacts of functional and hedonic ratings on product sales are inverted U‐shape. Furthermore, for ordinary product, variance of functional ratings has a negative effect on product sales, whereas hedonic ratings variance has an opposite impact. Surprisingly, ordinary product consumers tend to pay more attention to the negative hedonic reviews, whereas premium product consumers concentrate more on the negative functional reviews. In summary, various influences of multidimensional reviews and ratings across product type on review helpfulness and product sales are deeply explored in this study, suggesting that firms' online marketing strategies should be contingent on product type and characteristics. 相似文献
This article describes an initiative to train public sector clinicians in competency-based clinical supervision. It was delivered as an 18-session course taught online to clinicians employed in departments of behavioral health in nine Southern California counties. The curriculum was co-constructed by a team of clinical supervision scholars and leaders who then served as instructors. Each two-hour meeting addressed a specific topic for which a training video had been prepared, usually featuring a member of the training team who had expertise in that topic. The second part of each meeting focused on a class member’s supervision case presentation. Those presentations revealed 35 themes; the four most frequently occurring were: developing supervisees’ clinical competencies, addressing countertransference and parallel process, balancing clinical and administrative supervisory roles, and addressing record keeping/paperwork. Participants’ pre-to-post supervisory self-efficacy changes demonstrated a moderate effect size (Cohen’s d?=?.46) for the training, with the greatest pre- to post-training changes being in the use of technology, multicultural competencies (awareness of oppression, bias, and stereotyping in clinical work and in clinical supervision), and contracting. They reported that the strengths of the course included an inclusive learning environment and opportunities to reflect on and apply new knowledge and skills, though they also reported struggling with the assignments and the course platform software. Lessons learned reflected the use of technology in this online program, the importance of obtaining buy-in from agency decision makers and being prepared to address challenges related to the use of direct observation in supervision, gatekeeping, and enacting the simultaneous roles of administrative and clinical supervisor.
The twinning behaviour of Twinning-induced plasticity (TWIP) steel has been studied by analysing the grain orientation and the Taylor factor, based on microstructural and electron backscatter diffraction device observations. It is demonstrated that the Taylor factor can give an important guideline for determining the deformation mode of TWIP steel. The higher the Taylor factor, the easier the formation of twins and thus a tendency for the deformation mode to be mechanical twinning, while a low Taylor factor corresponds to a slip deformation mode. When the loading temperature is relatively low, the high Taylor factor regions increase and thus deformation twinning becomes easier while slip becomes more difficult, leading to increased tensile stress and decreased elongation. 相似文献