According to a study done by MailChimp, the average click$-$through rate $($CTR$)$ for email marketing across industries was $2\mathrm{.}91\%$ in $2022.$ Industries that had some of the highest email CTRs include Government $(3\mathrm{.}99\%),$ Media and Publishing $(4\mathrm{.}62\%),$ Home and Garden $(3\mathrm{.}03\%),$ and Hobbies $(5\mathrm{.}01\%).$ These are relatively high numbers compared to the typical display ads that we discussed in the previous module.

What do you think explains the relatively high CTRs of email marketing? And what might be some advantages of email marketing?