EMC is a monetary unit used for transaction operations on Emercoin blockchain. It also opens access to the extensive network of Emercoin blockchain services for business and users.
So how do you exactly buy cryptocoins on an exchange? The easiest way is to place a “market” order, meaning that you will buy EMC for USD at the lowest rate currently offered by sellers.
All cryptocurrency exchanges charge a small fee on the deal amount, usually varying from 0.10% to 0.25%. A third party has compiled a set of comparisons here.
Just like with any cryptocurrency, you can earn coins by generating new blockchain blocks. This can be done either through merged mining with Bitcoin, or through minting blocks in Emercoin’s own blockchain.
In the latter case, you get PoS bonuses at the rate of approximately 6% per annum on the staked EMC amount.