hdoesecon | Economics Teacher on Instagram: "You’d be surprised how often students get caught out by SRAS vs LRAS. Short-run aggregate supply (SRAS) only shifts when production costs change — things like wages or raw materials. Long-run aggregate supply (LRAS) is about the economy’s full capacity, so it shifts when productivity, skills, investment, or technology improve. Mixing them up in an exam can cost you easy marks, especially on diagrams. Dm for 1-1 A Level Economics tutoring — make sure y