... the two categories of data that we collected Transaction Data: The first part of our data set contains details of the transactions that took place on the marketplace of Amazon.com for each of the ... online reputation, thus far, base a merchant’s reputation on the numeric rating that characterizes the seller (e.g., average number of stars and number of completed transactions) (Melnik and Alm, ... transactions and 107,922 price premiums (recall that each transaction generates multiple price premiums) Reputation Data: The second part of our data set contains the reputation history of each merchant...