overidentification.

The condition of an identified model having more identifying restrictions than are needed to determine its parameters.

Use it for

Words that belong together

• overidentification test
• test of overidentification
• overidentification restrictions

On the page

The overidentification test examined whether the additional restrictions were consistent with the data.

Overidentification did not by itself establish that every instrument was valid.

Usage notes

Primary category: academic / formal / analytical. Lexical Type: Word. Forms: Usually uncountable; no ordinary plural in this sense. Commonness: uncommon (editorial estimate; not a corpus frequency statistic). Legacy lexical fields mirror sense 1; numbered fields keep each relevant meaning separate. Research distinction: CEMMAP paper directly read: model is identified with required rank; surplus moments/restrictions then make it overidentified. Extra restrictions can be tested. Does not establish instrument validity merely from their number. Individually useful in research, criticism, methodology or conceptual analysis. Definitions and examples are original; no mood or intensity assigned to neutral analytical concepts. Commonness is an editorial estimate, not a frequency statistic. Writing functions: surplus restrictions in econometric models, testability without assumed instrument validity.