The paper applies economic theories to give an overview of the emerging phenomenon of digital personal assistants (DPAs). A DPA is an intelligent automated system that interacts with the user through a dialogue in natural language, and meanwhile applying third-party services to obtain information and perform various actions. We analyze the benefits of increasing usage of DPAs, such as reduction of transaction costs, enhanced organization efficiency, procompetitive effects, and boosting the e-commerce economy. Besides benefits, however, adopting DPA in life may also contain some risks and downsides, which may reduce the positive welfare effects or even lead to decreasing welfare: biased services, market power on the DPA market and economic dependence on a dominant DPA, potential leveraging of DPA suppliers' market power into neighboring markets, personalized data (ab)use and privacy, media bias and manipulation of public opinion.
digital personal assistant DPA platform economics economics of privacy imperfect competition behavioral economics antitrust smart speaker auto-mated assistant virtual assistant digital butler digital helper digital assistant speech-based interface agent-based assistant algorithmic assistant digitization digital economy