While retaining the censorship resistance of bitcoin, Terra protocol stabilises the price of the currency through an elastic monetary policy and introduces fiscal policies to incentivise the expansion of the ecosystem and attract more users and programs to participate. Terra's stability is achieved by using a fiat-pegged policy to maintain its purchasing ability. Unlike other cryptocurrencies that are pegged to the USD, Terra is pegged to international major currencies such as USD,EUR, GBP etc., and the variety of currencies pegged increases with the number of votes. In addition, when users want to exchange TerraEUR for TerraUSD, it will use the EUR/USD exchange rate, and it ensure Terra's liquidity and flexible demand supply. Luna is the native crypto of Terra protocol that enable miners to stake it to mine transactions, and the size of Luna a miner stakes determines the miner’s mining power and voting power. Meanwhile, in order to avoid Terra's price fluctuation, the protocol uses Luna to maintain Terra's price to an expected exchange rate by agreeing the swap Terra and Luna. As for Terra's fiscal incentive policy, Terra provides a dApp platform and allocates resource from seigniorage to fund dApps by voting dApps that satisfy requirements.

Currently, you can buy Terra Luna crypto on several crypto exchanges such as OKX.

-Firstly, you need to create an account on OKX. -Secondly, there are two ways to buy Terra Luna: 1) If you want to use fiat to purchase Luna directly, you can go to 'Buy crypto' page, select the fait you wanted to pay with and choose Luna crypto, enter the volume you want to buy, then click 'Buy'. 2) If you already hold some cryptos, such as BTC or USDT, you can go to 'Trade', and find Luna crypto in the search box, choose your preferred trading pair. Then, enter the price and amount of Luna crypto you wanted, and wait for the fulfilment of the order.