The phrase "a longstanding model" is correct and usable in written English.
It can be used to describe a model or concept that has been in existence for a significant period of time and is well-established.
Example: "The theory of evolution is a longstanding model in the field of biology that has shaped our understanding of species development."
Alternatives: "an established model" or "a time-honored model".
It challenges a longstanding model of the Arctic ecological response to global warming.
Mr. del Toro's two favorite American writers are Mark Twain and Ambrose Bierce, whose "Occurrence at Owl Creek Bridge" is a longstanding model for him.
"The reason we did that is there's a longstanding model of drawing people in on celebrity news or cat pictures or whatever it is, and you hope they make their way across to the political stuff.
In the words of Jay Carney, the White House press secretary, the game being played is chicken, a longstanding model of game theory in which two players head toward each other on a collision course, swerving at the last possible moment.
Here, too, it is likely that parish officials were still thinking in terms of settlement law and employment prospects, and applying a longstanding model of child labour and training to a changing and mixed economy.
Broad-scope metabolomics encompassing both primary and secondary metabolism has been largely restricted to model plant species, including opium poppy, a longstanding model system for the study of BIA metabolism.
Nonetheless, the initial evidence of multiple rare variants within an individual, coupled with suggestive findings for polygenic common variant risk, provided by this study is consistent with a longstanding threshold model of schizophrenia.
Honig sees life insurance as one of the most promising areas for startups, which have the potential to supplant the longstanding model of face-to-face sales.
This is in keeping with the longstanding model of cumulative genetic change leading to cancer evolution and progression as originally described by Nowell et al. almost 30 years ago [ 29].
What we need is not anxiety over targeted killings but a third way between the longstanding models of war and peace.
The longstanding models for buying and selling a home are also in flux.
