Gig economy is the name given to the part of the labour market in which people are paid per task or contract rather than employed, with work found and paid for through digital platforms that match independent workers to customers.
The phrase covers a wide spread of work, from local delivery and driving to skilled professional services, and Upwork sits at the professional end of it. What the platforms share is the model: the worker is an independent contractor, the platform provides matching, payment and some form of reputation, and the customer buys an outcome or a block of time without an employment relationship. What separates the ends is who sets the price and the terms. On ride and delivery platforms the platform sets both; on a freelance marketplace such as Upwork the freelancer or agency sets the rate, writes the proposal and negotiates the scope, and the platform takes a fee on the result. Upwork tends to describe its own market as skilled, remote, project-based work rather than as gigs.
The term carries policy weight. Governments in several countries have tested whether platform workers are really contractors, and the rules on classification are among the risks Upwork Inc. discloses in its annual report; Upwork Payroll and its Enterprise compliance services exist partly as an answer to that question for clients who want to avoid it. The classification debate is also why the contractor relationship on Upwork is defined so carefully in its terms of service.
For an agency the gig framing fits least well: an agency is a business with staff, selling through a platform built for individuals, and its earnings, badges and score belong to the business rather than to any one worker.
How Upwork Insights uses it
This term describes Upwork's own rules or product rather than a figure the index measures; the pages that do carry live figures are the stats and rate pages.