Chapter 25: Q.20 (page 623)
Suppose the economy is operating at potential GDP when it experiences an increase in export demand. How might the economy increase production of exports to meet this demand, given that the economy is already at full employment?
Short Answer
The view of the AD/AS Model uses the curve of SRAS, which is nearly horizontal at levels of output below potential GDP and vertical at potential GDP output level. Thus, when there is beginning made from potential output, any decrease in (from to ) affects only output (as output decreases from to ), but prices are not affected.
Similarly, the prices and not the output is affected by any increase in .
Due to increase in Exports demand, increases, and this might cause an inflationary gap in the economy, where demand puts effort to push the economy past the potential output.