# Post-Office Revenue ## Definition The income generated by a sovereign through the operation of a postal system, derived from fees charged for carrying letters and parcels, which can provide both public service and profit to the state. ## Source Chapter Book V, Chapter 2 ## Context Smith identifies the post-office as a mercantile project that has been successfully managed by various governments, noting its advantages of requiring moderate capital, having certain returns, and providing immediate payment. ## Economic Domain General Theory ---