The phrase "a vast sector of" is correct and usable in written English.
It can be used to describe a large portion or area of a particular field, industry, or demographic.
Example: "A vast sector of the economy is dependent on technology and innovation."
Alternatives: "a large segment of" or "a significant portion of".
While the exemption approved on Thursday would cover a vast sector of the banking industry, those institutions control only about 20percentt of the roughly $14 trillion in assets held by commercial banks.
In fact, there is a vast sector of the population that, though marked by an intrinsically inferior proficiency in any number of arenas, enjoys an unearned sense of confidence.
Jeremy Rifkin's extremely gloomy--and incorrect--answer is that the central government will have to support a vast sector of social work because jobs will disappear.
It is an engine of growth in the underworld of the city's informal economy, a vast sector with an astonishing volume of supply.
There's another pie-growing aspect, he thinks, within the vast sector of teenage boys who love computer games.
Pointing to the vast sector of the publishing industry built around weddings - engagement announcements in newspapers, bridal magazines and the like - Ms. Ephron predicted that Huff Post Divorce would generate a lot of interest from readers.
Free market economics, whose rules of supply and demand we so conspicuously ignore in this vast sector of the economy, make simple herbs and plant extracts or simply produced chemicals worth many millions of pounds per tonne.
Cardinal Raul Primatesta, the Argentine church's leading political strategist, also backed the demonstration—"as a gesture of solidarity with the suffering of vast sectors of the population," a church spokesman explained.
General Pinochet's intransigent decision to remain in power until 1997, his invasion of the slum areas, the impoverishment of vast sectors of a country where unemployment runs at about 30percentt - all created fertile ground for action by those dissidents who were losing patience.
WASHINGTON — The United States and China will start negotiating a sweeping bilateral investment treaty, which could open vast sectors of each economy to investments from the other side, officials announced Thursday.
They go back a long time, and we are intent on achieving recognition of the rights of vast sectors of our population that have been relegated.
