Answer to Question 1
A change in demand means the demand curve has shifted. This is caused by a change in any variable other than price that can influence the market demand of the good in question. A change in quantity demanded refers to a movement along the demand curve and this is caused by a change in the price of the good in question.
Answer to Question 2
On the face of it, providing incentives to police officers to make more arrests sounds like a good idea. Motivated by higher wages, police officers are likely to work harder and to increase the number of arrests they make. However, since they earn higher wages simply based on the number of arrests they make, it is entirely possible that a good number of these arrests may not be warranted and would have been made only to earn higher wages.
Bones change radically in size and shape from newborn to adult, as these cervical vertebrae demonstr
Ogburn's Processes of Social Change
The slight (5 microsecond) difference in the firing of the companion cylinders is enough time to ...
Ancient Climate Change
The Impact of Climate Change in the world
A single-nucleotide change in the DNA encoding -globin