What share of total costs (averaged over all transactions) would arise from customer service?
That’s a question I can not answer from experience – I can not point you to any deep experience here at Clickshare, or with any other service except First Virtual (who published a paper on this topic!). Of course, FV is not a micro-transaction service. Our financial model shares a portion of the service fee with the billing entity that actually manages the customer relationship. Thus, we recognize the customer service challenge implicit in managing that relationship.