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Digital assets and currencies

Understand assets, networks and trading mechanics with sources you can check.

Fiat currencies

Special drawing rights

Special drawing rights (SDRs, code XDR) are a supplementary foreign exchange reserve asset defined and maintained by the International Monetary Fund (IMF). SDRs are the units of account for the IMF, and not a currency; rather, SDR value is based on a basket of currencies, the specific composition of which is reviewed every five years. SDRs represent a claim to currency held by IMF member

Finance

Speculative attack

In economics, a speculative attack is a precipitous selling of untrustworthy assets by previously inactive speculators and the corresponding acquisition of some valuable assets (currencies, gold). The first model of a speculative attack was contained in a 1975 discussion paper on the gold market by Stephen Salant and Dale Henderson at the Federal Reserve Board. Paul Krugman, who visited

Assets

Stablecoin

A stablecoin is a type of cryptocurrency that aims to maintain a stable value relative to a specified asset, a pool or basket of assets. The specified asset might refer to fiat currency, commodity, or other cryptocurrencies. Despite the name, stablecoins are not necessarily stable. Stablecoins rely on stabilization tools such as reserve assets or algorithms that match supply and demand

Assets

Stellar (payment network)

Stellar, or Stellar Lumens (symbol: XLM), is a cryptocurrency protocol which allows transactions between any pair of currencies.

Finance

Stock market

A stock market, equity market, or share market is the aggregation of buyers and sellers of stocks (also called as shares), which represent ownership claims on businesses; these may include securities listed on a public stock exchange as well as stock that is only traded privately, such as shares of private companies that are sold to investors through equity crowdfunding platforms. Invest

Fiat currencies

Taylor rule

The Taylor rule is a monetary policy targeting rule. The rule was proposed in 1992 by American economist John B. Taylor for central banks to use to stabilize economic activity by appropriately setting short-term interest rates. The rule considers the federal funds rate, the price level and changes in real income. The Taylor rule computes the optimal federal funds rate based on the gap be

Networks

Terra (blockchain)

Terra is a blockchain protocol and payment platform used for algorithmic stablecoins. The project was created in 2018 by Terraform Labs, a startup co-founded by Do Kwon and Daniel Shin. It is best known for its Terra algorithmic stablecoin and the associated LUNA reserve asset cryptocurrency.

Networks

Tezos

Tezos is an open-source blockchain that can execute peer-to-peer transactions and serve as a platform for deploying smart contracts. The native cryptocurrency for the Tezos blockchain is the tez (ISO 4217: XTZ; sign: ꜩ). The Tezos network achieves consensus using proof-of-stake. Tezos uses an on-chain governance model that enables the protocol to be amended when upgrade proposals receive

Assets

The DAO

The DAO was a digital decentralized autonomous organization and a form of investor-directed venture capital fund. After launching in April 2016 via a token sale, it became one of the largest crowdfunding campaigns in history, but it ceased activity after much of its funds - in the form of US$ exchanged for "Ether-crypto coins" - were taken in a hack in June 2016.

Finance

Trade (finance)

In finance, a trade is an exchange of a security such as stocks, bonds, commodities, currencies, derivatives or any valuable financial instrument for "cash". Such a financial transaction is usually done by participants of an exchange such as a stock exchange, commodity exchange or futures exchange with a short-dated promise to pay in the currency of the country where the 'exchange' is lo

Fiat currencies

Trade-weighted US dollar index

The trade-weighted US dollar index, also known as the broad index, was a measure of the value of the United States dollar relative to other world currencies. It was a trade weighted index that improved on the older U.S. Dollar Index by incorporating more currencies and yearly rebalancing. The base index value was 100 in January 2006.

Fiat currencies

Triangular arbitrage

Triangular arbitrage (also referred to as cross currency arbitrage or three-point arbitrage) is the act of exploiting an arbitrage opportunity resulting from a pricing discrepancy among three different currencies in the foreign exchange market. A triangular arbitrage strategy involves three trades, exchanging the initial currency for a second, the second currency for a third, and the thi

Fiat currencies

Triffin dilemma

In international finance, the Triffin dilemma (sometimes the Triffin paradox) is the conflict of economic interests that arises between short-term domestic and long-term international objectives for countries whose currencies serve as global reserve currencies. This dilemma was identified in the 1960s by Belgian-American economist Robert Triffin. He noted that a country whose currency i

Networks

Tron (blockchain)

Tron (stylized in all caps) is a decentralized, proof-of-stake blockchain with smart contract functionality. The cryptocurrency native to the blockchain is known as Tronix (TRX). It was founded in March 2014 by Justin Sun and, since 2017, has been overseen and supervised by the TRON Foundation, a non-profit organization in Singapore, established in the same year. It is open-source softwa

Fiat currencies

U.S. Dollar Index

The U.S. Dollar Index (USDX, DXY, DX, or, informally, the "Dixie") is an index (or measure) of the value of the United States dollar relative to a basket of foreign currencies, often referred to as a basket of U.S. trade partners' currencies. The Index goes up when the U.S. dollar gains "strength" (value) when compared to other currencies.

Assets

Unspent transaction output

In cryptocurrencies, an unspent transaction output (UTXO, often capitalized as UTxO) is a distinctive element in a subset of digital currency models. A UTXO represents a certain amount of cryptocurrency that has been authorized by a sender and is available to be spent by a recipient. The utilization of UTXOs in transaction processes is a key feature of many cryptocurrencies, but it prima

Assets

Virtual currency law in Iran

In 2018, Iran recognized cryptocurrency mining as a legal industry in order to monitor and regulate the mining farms that were already operating. In December 2025 Iranian regime globally banned any and all transaction and transfer of cryptocurrency and along with that of in gold. In July 2018, President Hassan Rouhani's administration declared its intention of launching a national crypto

Assets

WhopperCoin

WhopperCoin was a cryptocurrency launched by the Russian branch of Burger King as a loyalty program in the summer of 2017. It was primarily notable for being the first issuance of branded cryptocurrency by a major company and the first form of loyalty points that could be traded freely; the BBC noted that Burger King was the "first major corporate brand to issue its own crypto-cash", wit

Fiat currencies

XRP Ledger

The XRP Ledger (XRPL), also called the Ripple Protocol, is a cryptocurrency platform launched in 2012 by Ripple Labs. The XRPL employs the native cryptocurrency known as XRP, and supports tokens, cryptocurrency or other units of value such as frequent flyer miles or mobile minutes.

Assets

Zcash

Zcash is a privacy-focused cryptocurrency which features an encrypted ledger using zero-knowledge proofs.