What is the difference between the long-run aggregate supply and the short-run aggregate supply curves?
What will be an ideal response?
The long-run aggregate supply curve, LAS, is the relationship between the price level and real GDP when real GDP equals potential GDP. The LAS curve is vertical. Along the LAS curve, both the prices of goods and services and the prices of resources, such as the money wage rate, change. The short-run aggregate supply curve, SAS, is the relationship between the price level and the quantity of real GDP supplied in the short run when the money wage rate and other resource prices are constant. The SAS curve slopes upward. Along the SAS curve, only the price level changes; the money wage rate and other resource prices are constant. The SAS curve shifts leftward when the money wage rate (or other costs) rise.
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The economy pictured in the figure has a(n) ________ gap with a short-run equilibrium combination of inflation and output indicated by point ________. 
A. recessionary; A B. recessionary; C C. recessionary; B D. expansionary; A
Taxes levied on goods and services transported across political boundaries are referred to as:
A) service taxes. B) tariffs. C) value added taxes. D) transport taxes.
A difference between moral hazard and adverse selection is that
a. moral hazard deals with pre-contractually determined public information b. moral hazard deals with post-contractually determined private information c. adverse selection deals with pre-contractually determined private information d. adverse selection deals with post-contractually determined public information
Entry by new firms into a perfectly competitive industry
A. has no effect on existing firms. B. results in higher output by existing firms in equilibrium. C. results in lower output by existing firms in equilibrium. D. results in no change in the market price or output.