A decrease in the money supply in an economy results in a lower equilibrium interest rate

What will happen to the demand curve for workers in steel mills if some technology that increases their productivity is introduced assuming all else equal?

A) It will cause a downward movement along the demand curve of the workers. B) It will cause an upward movement along the demand curve of the workers. C) It will cause a leftward shift in the demand curve of the workers. D) It may cause a rightward shift in the demand curve of the workers.

The three business cycle models differ mostly in their treatment of ________

A) aggregate demand B) short-run aggregate supply C) long-run aggregate supply D) productivity shocks