Fintech, the convergence of finance and internet related technology, is regard as new promising financial service. Among Fintech services, mobile payment which is new type of payment tool for consumer with smartphone started to draw attention. As the mobile payment started to replace current...

The cause for the observed trends in prostate cancer mortality is unclear. Several authors have indicated that incorrectly classified causes of death have played a role in recent mortality trends. This dissertation is devoted to analyzing competing risks survival data with a misclassified cause...

The rapid growth of the digital content market has fueled the expansion of the creator economy, driving platforms to innovate and vie for creators' attention. In South Korea, the competitive landscape intensified with Twitch's withdrawal from the market in December 2023. This decision...