The current pandemic era has given uncertainty to the country's economic growth and resulted in many countries experiencing a drastic decline in share prices. This condition impacts investors' perceptions of the funds that have invested in the stock market. This study investigates the effect of essential information and disposition effect on shifting decision investment with the character investor's moderation as the moderator variable. A survey was conducted on 252 investors who have invested in the Indonesian stock exchange. The Data processing used the partial least square (PLS) technique. This study indicates that essential information for investors in the pandemic era can increase the disposition effect in deciding beneficial share ownership. The essential information obtained by investors in the covid era regarding stock market movements and its internal performance in the stock market list can increase investor shifting decisions. The disposition effect can have a significant effect on shifting decision investors. Essential information related to stock price movements and its internal performance affects investors' courage to take risks and provide optimism for shifting decisions. Then the investor type does not affect the disposition effect on shifting decisions. This study contributes to the theory of financial behavior in decision making by considering psychological factors when uncertainty exists in the stock market.

The use of social media for young people has encouraged communication and socialization with other users massively and excessively. Besides, activities by the community of social media users have allocated much time. This condition exposed productivity as a challenge in the place and family communication. This study explores the effect of excessive use of social networking sites on customer loyalty with the mediating role of perceived usefulness, behavioral intention, and essential information. This research focused on adult-young people who use social networking media daily. Data collection used questionnaires designed with a five-point Likert scale and distributed online through Google Forms link. The respondents were given rewards through internet charge vouchers to encourage them, respondents, to complete the questionnaires. The questionnaire was distributed successfully to 932 prospective respondents during 2019-2023 through social media (WhatsApp, Line) and e-mail. Four hundred seventy-two (472) respondents were considered to meet the sample criteria as an adult-young group—data processing using Partial Least Square (PLS) with SmartPLS Software version 4.0. The results found that excessive use of social networking sites positively affects perceived usefulness, essential information, and behavioral intention. Perceived usefulness positively influences essential information and behavioral intention. The essential information increases behavioral intention and customer loyalty. The results also found that behavioral intention positively impacts customer loyalty. The practical contribution of research to young adults can determine the top priority in using social networking sites so as not to interfere with work activities and good relationships between family members. The film industry can promote products through social media effectively and efficiently. The theoretical contribution of research by enriching marketing behavior theory and technology acceptance model to improve user welfare and comfort.