1- The STEEM crypto-currency is directly created by the Steem blockchain, how?

New Steem are generated every day, in a certain volume, according to a very specific algorithm called DPoS (Delegated Proof of Stake) with (20+1) witnesses responsible for creating, signing transactions and securing the network. More concretely, blocks are created approximately every three seconds (each block now contains 2,945 STEEM).

2- It increases in value by entering the cryptocurrency exchange market. This value is measured by its usefulness, its rarity and the confidence placed in it on the markets. Plus a product, service, etc. is useful, sought after and rare, the more its value increases.

3- - The money also comes from new people who buy Steem and who therefore inject money into the network in a way, by valuing the tokens already issued.