\fPrice Level Real GDP Which of the following statements is a valid explanation of the change shown in the graph? ' An economy experiences a positive supply shock, leading to short-run deflation. An economy experiences a negative supply shock, leading to short-run inflation. An economy experiences a negative demand shock, leading to short-run deflation. An economy experiences a positive supply shock, leading to short-run inflation. An economy experiences a positive demand shock, leading to short-run deflation