NEO Smart Economy is a next generation economy and trade where trade agreements are written in almost any programming language using a Smart Contract.
NEO is often called "China's Ethereum" because of it's similiarities to the Etherum blockchain.
What is GAS?
GAS is a Cryptocurrency which is distributed by holding NEO in your wallet.
GAS is used to fuel transactions on the NEO blockchain.
With each NEO Block getting generated, GAS will be distributed to all NEO holders.