Stablecoins are cryptocurrencies meant to hold stable values. Their market prices are pegged to an underlying stable benchmark. The US dollar is the most common stability benchmark. But there are also other 'pegs' like Euro, Yen or Gold.
The most renowned stablecoin is Tether (USDT). It is now the tenth largest cryptocurrency by market capitalization ($2,055,402,523), but it managed to be in the top-5.
The role of stablecoins is to enable the use of crypto for day to day economic transactions without the fear of volatility and thus help a wider crypto adoption.
The volatility of cryptocurrencies is good for speculation, but I guess not many people would accept a salary in Bitcoin or Ether, having a very volatile price, since the purchasing power of their wages will keep fluctuating.
Stablecoin primers include : Tether (USDT), USD Coin (USDC), True USD (TUSD), Paxos (PAX), Dai (DAI), Stasis (EURS), Digix (DGX) and Carbon.
The number of stablecoins is continuously growing and the new born is TRX-USDT launched on TRON's blockchain on April 16, 2019.
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