The level of consumer confidence in e-commerce Indonesia is increasing, and the financial situation is getting better. Peoples are optimistic about their financial condition. Consumer optimism in Indonesia is increasing with the economic recession that happened in 2015, 69% to 58%, followed by 2016, 58% to 51%. This situation has increased the shopping options available to the consumers. Indonesia as the one of the most consumptive country have 41 % consumers visit e-commerce every day with 6 % consumers makes the transaction in 2010. However discount on the e-commerce platform also encourage people to shop, and Self-efficacy, which is an important variable in explaining individual behaviors and preferences. The aim of this study is to know the influence of Optimism and Self–efficacy to e-commerce consumers decision making. Participants were 133 persons in the range of ages between 18 to 35 years old. Among persons surveyed, 36 were men, and 97 were a woman. Most of the respondents were in the group ages 20-23 (n= 119). The instrument used in this study is Revised Life orientation (LOT-R) to measure optimism, Online Transaction Self-efficacy to measure Self-efficacy, and Consumer Decision Making (DCM) to measure decision making. All of the items were measured with Likert-type ranging from strongly agree to strongly disagree. This is a quantitative research by using multiple regression method. Using path analysis, it’s found that optimism and self-efficacy give the contribution to decision making (R square 25,4%). Based on the result of this study, optimism and self-efficacy consequently and influencing the e-commerce consumer behaviors (Sign= 0,014). The result of this study points out that optimism and self-efficacy positively influencing e-commerce consumer decision making. In this study optimism, no existing scale could be found to measure optimism in a business to consumer e-commerce environment. Mostly the research was an attempt to know people perception, satisfaction, and trust because the consumers are not able to touch or see their product. In this research, self-efficacy has to establish measures of cognitive processes, such as the urge to make transactions. Similarly optimistic on the economy and society also increased confidence towards e-commerce that is correlated with positive outcomes. Optimistic indicates the direction and purpose of the consumer, self-efficacy gives a boost to the community to make decisions. In this case Optimistic and self-efficacy plays a fundamental role in the e-commerce business due to good effect against the decision. Maintaining the momentum of optimism and self-efficacy community can increase the business value of e-commerce. In addition Optimistic and Self-efficacy may improve general health, and will rarely feel depressed. Decision making has always been something that is commonly encountered every day, in this study has been approved that an optimistic perspective can influence decision making, especially have a better impact. In addition, digital innovation especially e-commerce greatly affects the economic level in Indonesia, such as the complimentary circle between variables related to e-commerce business environment.

Keywords: optimism, self-efficacy, decision making, e-commerce, consumer
Word Count: 501