EconGuru’s Economic Glossary (reference below) defines fixed input as an input in the production of goods and services that does not change in the short run.
It goes on to say:
“A fixed input should be compared with a variable input, an input that DOES change in the short run. Fixed and variable inputs are most important for the analysis of short-run production by a firm. The best example of a fixed input is the factory, building, equipment, or other capital used in production. The comparable example of a variable input would then be the labor or workers who work in the factory or operate the equipment. In the short run (such as a day or so) a firm can vary the quantity of labor, but the quantity of capital is fixed.”
Atlas topic, subject, and course
Economic Glossary, fixed input, at http://glossary.econguru.com/economic-term/fixed+input, accessed 19 May 2016.
Page created by: Ian Clark, last modified 19 May 2016.