Question

1. which of the following would be the least likely thing an economist would study?

what new platforms are teens and young adults using to download music and movies?
what types of movies do children like to watch in the summer?
what is the effectiveness of a new $50 million government campaign to keep teens from vaping?
what are the health effects of new energy drinks on young consumers?

Explanation:

Economists study topics related to economic behavior, resource allocation, costs/benefits of policies, or market - related activities. The question "What are the health effects of new energy drinks on young consumers?" is about health impacts, which falls under the domain of health sciences (like medicine, public health) rather than economics. The other questions relate to economic - relevant areas: the first about platforms for downloading (market/consumer behavior), the second about children's movie preferences (could relate to consumer demand), and the third about the effectiveness of a government campaign (cost - benefit, policy impact in an economic context).

Answer:

The least likely thing an economist would study is "What are the health effects of new energy drinks on young consumers?"