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Q&A for those who study, teach, research and apply economics and econometrics
select a.OwnerUserId as [User Link], count(PostId) as [Answer Edits] from Posts q join PostHistory e on PostId = q.Id join Posts a on a.ParentId = q.Id and IsNull(q.OwnerUserId, -1) <> a.OwnerUserId and UserId = a.OwnerUserId and abs(datediff(hour, a.CreationDate, e.CreationDate)) < 12 and PostHistoryTypeId in (4, 5) where q.PostTypeId = 1 and a.PostTypeId = 2 and a.Score >= 1 group by a.OwnerUserId having count(PostId) >= 500 order by count(PostId) desc