Which statement accurately describes the long-run aggregate supply (LRAS) curve?
Explanation
The LRAS curve is vertical because when all prices and wages change proportionally, the overall output remains unchanged. This reflects the economy's maximum sustainable output regardless of the price level. Other options are incorrect because the LRAS does not slope upward in the long run, changes in minimum wage typically affect short-run aggregate supply, and a decline in the natural unemployment rate generally shifts LRAS to the right, not left.