Answer:
The actual price level turns out to be 90. Faced with high menu costs, the firms that rely on catalog sales choose not to adjust their prices. Sales from catalogs will remain the same, and firms that rely on catalogs will respond by increasing the quantity of output they supply.
If enough firms face high costs of adjusting prices, the unexpected decrease in the price level causes the quantity of output supplied to rise above the natural rate of output in the short run.
Explanation:
The inputs are based on the sticky-price theory, with explaination as below:
"In the short run, the quantity of output that firms supply can deviate from the natural rate of output if the actual price level in the economy deviates from the expected price level. Several theories explain how this might happen. For example, the sticky-price theory asserts that the output prices of some goods and services adjust slowly to changes in the price level."