ECONOMICS
DEMAND
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
studies showing using cellular phones can cause brain cancer
|
|
|
a decrease in the price of cellular phones
|
|
|
a decrease in the quantity demanded of cellular phones
|
|
|
an increase in the services provided by cellular phones, such as text messaging
|
Detailed explanation-1: -Answer a that shows cell phones use will cause brain cancer will lead consumers to shift their preferences away from cell phones. This change in preferences will reduce the demand and shift the demand curve to the left.
Detailed explanation-2: -Explanation: A reduction in production costs will cause a rightward shift of the supply curve. Successful advertising campaigns will cause the demand for cell phones to shift to the right.
Detailed explanation-3: -Answer and Explanation: A decrease in subsidies to apple juice producers will shift the supply curve of apple juice to the right. A decrease in the price of grape juice will shift the demand curve for apple juice to the left. An increase in the price of apple juice will increase the quantity supplied of apple juice.
Detailed explanation-4: -Factors that can shift the demand curve for goods and services, causing a different quantity to be demanded at any given price, include changes in tastes, population, income, prices of substitute or complement goods, and expectations about future conditions and prices.
Detailed explanation-5: -The prices of a commodity cause a movement along the supply curve and not a shift. Therefore a decrease in prices of smartphones will result in a decrease in the amount supplied.