Hi,
I guess there is no such equivalent but we can find what authorizations an USER has by querying the table "SYS"."GRANTED_PRIVILEGES" .
You can query by Object type,Schema Name, Grantee, etc.
In order to find privileges for a particular user, the query will be
select * from "SYS"."GRANTED_PRIVILEGES"
where GRANTEE = 'user_name'
Regards
Raj