Decisions are made by many different groups and individuals.
To be elaborate, it's the separation and distribution of authority, resources, and/or bureaucratic processes and jurisdictions to lower levels of government, divisional and departmental levels, or lower/middle-level managers.
Digital money organized by a synced distributed ledger online. While centralized currencies are backed by the economies of countries, decentralized currencies typically don't have a government affiliation. These currencies are run by incentivized volunteers via appropriate consensus algorithms. Much like incentivized volunteers run Uber, called drivers, and Airbnb, called hosts, incentivized volunteers, traditionally called "miners," run these decentralized currency protocols. Examples of decentralized currencies include Bitcoin and Ethereum.
I haven't been trading much decentralized currency lately.
