What exactly is the point of A–Levels?
Certainly not to prepare one for an English university.
There’s little need to work hard until the end of the year and hardly any coursework. Furthermore, it turns out that half of A-Level Economics is covered in one chapter of the EPAIS degree course, while the Maths A-Level seemed so skate around everything important and provide enough easy marks to avoid anything difficult. And they wrote a syllabus-specific textbook to provide the answers.