Shadow work
Encyclopedia
Shadow work in economics, is the unpaid labor in an economy through self service. The term was first used by Ivan Illich
Ivan Illich
Ivan Illich was an Austrian philosopher, Roman Catholic priest, and "maverick social critic" of the institutions of contemporary western culture and their effects on the provenance and practice of education, medicine, work, energy use, transportation, and economic development.- Personal life...

, in his 1981 book of the same title. An example would be self checkout
Self checkout
Self checkout machines provide a mechanism for customers to pay for purchases from a retailer without direct input to the process by the retailer's staff. They are an alternative to the traditional cashier-staffed checkout...

at a supermarket.
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