How to share the credit with second(third/fourth...) purchase [Attribution]
I have a question about attribution of multiple purchase .
Let's suppose one situation :" A customer finds your site by clicking one of your AdWords ads. She returns one week later by clicking over from a social network. That same day, she comes back a third time via one of your email campaigns, and a few hours later, she returns again directly and makes a purchase.
Ans 2 days later, she returns again via Referral and make a purchase."
How about the second purchase?
In the Linear attribution model, Referral will receive 100% credit, or all the touchpoint ( AdWords ads, social network, email campaigns, direct, Referral) will share creit equally(20% each)?
Will google treat second purchase as a new activity? Or the second purchase will be affected by the previous activity?