# <center><i class="fa fa-edit"></i> 4.5 Payment Services </center> ###### tags: `Blockchain` The following notes are taken from [Coursera](https://www.coursera.org/learn/cryptocurrency/home/week/2) --- ### Scenario: Merchant Accepts BTC - Customer wants: to pay with Bitcoin - Merchant wants: - To receive dollars - Simple deployment - Low risk - Tech risk - Security risk - Exchange rate risk ![](https://i.imgur.com/KwejTVB.jpg) ### End Result - Customer: pays Bitcoins - Merchant: gets dollars, minus a small percentage - Payment Service: - Gets Bitcoins - Pays dollars (keeps small percentage) - Absorbs risk: security, exchange rate - Needs to exchange Bitcoins for dollars, in volume :::warning The user is exposed to exchange rate risk to some degree since they must hold bitcoins at least temporarily to be able to pay with bitcoins. :::