"Both cryptocurrencies and stablecoins are based on blockchain technology. Yet, unlike cryptocurrencies utility tokens, the value of which is directly linked to the growth or decline in the use of the token, a stablecoin value is pegged to a stable real-world asset, from commodities to currencies.
Another significant difference between cryptocurrencies and stable coins is that any stablecoin value has to be backed by assets held in reserve by the stablecoin issuer. This means that stablecoins are centralized by definition, as there has to be a central authority in charge of holding the backing assets, supervising the assets management and providing the documentation for audits."
https://ban.cr/stableMore on why Bancor's Head of Marketing, Anna Stone, is optimistic about using stablecoins to fight poverty:
https://ban.cr/stable