of the business. Sales Effect on + Sales increased by engagement of customers on Twitter + “Over 50% of our sales are driven by word of mouth.” - Very low customer engagement on Twitter - No increase of word of mouth, no increase of sales -Neil Blumenthal, Co-founder Warby Parker
of the business. Cost Effect on + Cost for customer service: <$1 per customer contact on Twitter + More cost-effective customer service - Cost for customer service: $6-12 per customer contact using traditional call center - No customer service on Twitter, costs cannot be driven down