The phrase "a single sector that" is correct and usable in written English.
It can be used when referring to one specific area or division within a larger context, often in discussions about economics, industry, or research.
Example: "The report focuses on a single sector that has shown significant growth over the past year."
Alternatives: "one specific sector that" or "a particular sector that".
"There's not a single sector that isn't facing massive changes.
"In a typical recession, major job losses occur in a single sector that is concentrated in one part of the country," he said.
A profits recession, to me, at least, is something that afflicts a broad cross-section of the economy, not simply a single sector that has been hammered by a single factor: the decline in price of a commodity.
While it's critical to prepare a workforce for "tech-creating jobs," it's equally as important to train people for "tech-using" professions, which cut across every single sector that now leverages data analytics and other advanced digital tools to problem-solve.
The slit window was mounted together with a normal window on a single sector cell such that the slit was facing the inside surface of the centerpiece.
"There isn't a single sector of the economy that isn't disastrous -- agriculture, industry, the credit-finance system, the banking system, health, ecology," Ukraine's new Prime Minister said of his country's economy.
Hertel used the approach in a model of a single farm sector that has become common in agricultural economics (see, for example, Hertel 1989; Alston et al. 1995; Gunter et al. 1996; Salhofer 1996; Jamal 1997; Alston and James 2002; Jamal 2003, Ciaian and Swinnen 2006; Ciaian and Kancs 2009; Jafari and Jamal 2015, 2016; among others).
The result of that government largess is an economy extremely dependent on a single industrial sector that has been devastated by plunging worldwide sales of electronics.
That growing dependence on a single sector worries some economists, particularly because its fortunes are largely tied to government programs like Medicare.
This is also more consistent with the ecosystem approach, since the emphasis is on ecological scales that cross administrative boundaries, even though it is within a single sector.
That only happens through collaborations beyond a single company and a single sector.
