Are acts, efforts, or performances exchanged from producer to user without ownership rights.

I believe the answer is: Services.

In non-service industries, the product that sold by the customer has an actual concrete shape that would be given along with the ownership rights.
In service industries, the product that sold is in the form of time, skills, or intellectual property, that given to the customer without the ownership rights

Vanessa had a dream to be a ballerina. with her father's she had that opportunity.