One way to have people create more dataverses is to make it easier to see how to do it. People who get to dataverse from google and bypass the home page or search results page don't see a clear way to add data.

One solution: adding a button to the header on every page will help make it clear how to add to Harvard Dataverse.

Adding a button. The button has a dropdown to select a new dataverse or new dataset, as current Add Data functionality from the buttons on the home page:

If users are not logged in, the Log in/Sign in popup with a link to sign up (issue #6170) is shown.
Proposed flow:

Removing the "Add Data" button from the search results page, and showing it on the header for not logged in users: