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This research investigated the influence of advertisement (ad) duration and key elements (titles, logos, and texts) on advertising effectiveness in mobile feeds. We recruited 40 participants (27 men and 13 women) who are aged from 20 to 43 years (M = 29.33, SD = 6.67). The participants were assigned randomly to four groups to watch four different types of ads: 6-second ads with key elements, 15-second ads with key elements, 15-second ads without key elements, and 30-second ads without key elements. We measured advertising effectiveness from four aspects: users’ attention, emotion, memory, and attitudes. During the experiment, a researcher recorded participants’ electroencephalography and eye movements. After the experiment, participants were required to complete a questionnaire and were interviewed. Results showed that participants felt more positive when watching 6-second duration ads in mobile feeds than the 15-second and 30-second ads; however, their memory of the ads was worse. The participants paid more attention to the key elements rather than the content of the ads. This research elucidated the features of native video ads in mobile feeds and provided some useful suggestions for advertisers who design video ads.

The purpose of this study is to test different effects of three components of innovation legitimacy on business model innovation. We selected the full-time employees of 211 enterprises and institutions as samples, built models taking gender, age, education level and rank as the control variables and taking cognitive legitimacy, moral legitimacy, and practical legitimacy as independent variables. This chapter made descriptive statistic analysis, reliability testing, and correlation analysis through SPSS15.0, and tested the relationships between variables using hierarchical regression analysis. The final conclusions: the moral legitimacy shows a significant relationship on business model innovation; while the effect of others on business model innovation does not reach the level of significance.