Comment by elliekelly

> At least in Pennsylvania. This decision is based on state law.

Only in part. Section B @ page 21 is the Court outlining their reasoning under the Second Restatement of Torts which has been adopted in some form or another in most states. The court could have ended with the Pennsylvania four-factor analysis but the ruling would have definitely been limited in scope. Instead, the 3rd Circuit has anticipated this case going to the Supreme Court and went through the effort of detailing the logic for a SCOTUS ruling that would hold Amazon accountable beyond the boundaries of Pennsylvania as well.