England. Closing the Gap between Vocational and General Education? Evidence from University Technical Colleges in England
For students who enter at a more conventional transition age of 16, University Technical Colleges (UTCs) boost vocational achievement without harming academic achievement. They also improve achievement in STEM qualifications, and enrolment in apprenticeships. By age 19, UTC students are less likely to be unemployed and more likely to study STEM at university.
https://www.iza.org/publications/dp/13837/closing-the-gap-between-vocational-and-general-education-evidence-from-university-technical-colleges-in-england