The phrase "a set of longstanding" is correct and usable in written English.
It can be used to refer to a collection or group of things that have existed for a long time or have been established over a significant period.
Example: "The committee reviewed a set of longstanding issues that have affected the community for years."
Alternatives: "a collection of enduring" or "a group of established".
When dealing with a set of longstanding traditions of suspicious provenance and dubious wisdom, things are bound to get confusing.
"What happened in the Roaring Nineties," Mr. Stiglitz writes, "was that a set of longstanding checks and balances -- a balance between Wall Street, Main Street (or High Street, as it is called in the United Kingdom), and labor; between Old Industry and New Technology, government and the market -- was upset, in some essential ways, by the new ascendancy of Finance".
Second, how have a set of longstanding democracies--the 15 countries in the European Union (EU --actually mEU --actuallyirEU --actuallyhat influential metintheseetations of the Westerequirementsexperience with religion and democracy must whatvoinfluential
Both come to office after their countries' relations deteriorated over a longstanding dispute over a set of islets.
Ms. Park came to office after South Korea's relations with Japan deteriorated over a longstanding dispute over a set of small islands.
On the one hand, the firm has a wonderful set of endowments: (i) longstanding and lucrative relationships with industry-leading clients; (ii) a business that requires very little operating capital yet generates significant cash and profits; and (iii) an established brand that makes it the safe choice against upstart new entrants.
If Black Tuesday has brought any good to the country, it has been in the setting aside of longstanding and counterproductive schisms and rivalries: not just between Democrat and Republican or rural and urban, but in other areas of life.
And then there has been a longstanding set of course management tools with a dominant and expensive incumbent, Blackboard.
"There's a lot going on in the world and I have a longstanding set of relationships that go back not only to secretary and senator but first lady, and I think it's important to tend to those relationships," Mrs. Clinton said.
"There is a longstanding set of principles that guide the Justice Department in deciding whether to bring a criminal complaint versus a company, and one is cooperation," said Scott D. Michel, a lawyer who counsels wealthy clients at Caplin & Drysdale.
But she emphasized that the Group of 7 had a "longstanding set of rules" committing its members to float their currencies except during rare instances of market turbulence.
