Which of the following events would directly cause the long-run aggregate supply curve (LRAS) to shift? Instructions: You may select more than one answer. Click the box with a check mark for correct answers and click to empty the be the wrong answers. To stimulate the economy, the Federal Reserve drastically cuts interest rates. A major breakthrough in energy technology enables power companies to generate power 40 percent more efficiently. A civil war erupts in a small country which results in major death and destruction An unusually cool summer in the Midwest causes poor yields in the corn crop.