More than 70% of global e-mail traffic consists of unsolicited and commercial direct marketing, also known as spam. Dealing with spam incurs high costs for organizations, prompting efforts to try to reduce spam-related costs by installing spam filters. Using modern econometric methods to reduce...

Programmatic advertising is prevalent in online advertising. However, it offers managers limited control over the type of website where the ad appears, resulting in brand safety issues. Aware of the risk that ads may potentially display on websites of poor quality (nonpremium websites), managers...