[[ch04_merchant]] == Using bitcoin as a merchant This chapter examines bitcoin from the perspective of a retail merchant who wishes to sell goods or services, priced or paid (or both) in bitcoin. The chapter examines the differences between consumer single-wallet use and merchant-level use of the bitcoin software. === Merchant and payment services === Transaction fees and conversion fees === Handling thousands of transactions === Address per transaction === Deterministic key generation === Master public key (MPK) === Cold storage === Customer culture (early adopter) and expectations ==== Anonymity and privacy expectations ==== Trust without chargebacks ==== Corporate and personal identity for trust === Refunds and reversals === Pricing in bitcoin or fiat currencies === Exchange rate and Conversion timing === Handling currency risk === Currency exchange and liquidity risk === Volatility risk === Regulatory risk