The following graph shows a decrease in short-run aggregate supply (AS) in a hypothetical economy where the currency is the dollar. Specifically, the short-run aggregate supply curve shifts to the left from AS1AS1to AS2AS2, causing the quantity of output supplied at a price level of 100 to fall from $200 billion to $150 billion.

0501001502002503003504002001751501251007550250PRICE LEVELQUANTITY OF OUTPUTAS1AS2

The following table lists several determinants of short-run aggregate supply.

Fill in the table by indicating the changes in the determinants necessary to decrease short-run aggregate supply.

	Change Needed to Decrease AS
Inflation expectations
Tax rates
Burdensome regulations