the inverse relationship between income and quantity demanded.
the direct relationship between consumer preferences and quantity demanded.
18. The demand curve of a commodity slopes downward because of:
the insatiable nature of human wants.
the presence of double coincidence of wants.
the scarcity of goods and services in an economy.
the law of diminishing marginal utility.
19. Consider a demand curve for peaches. Which of the following movements will be observed if the price of peaches
decline at a point in time?
The demand curve will rotate inward at the given price level.
The will be a movement up along the demand curve.
The demand curve will rotate outward at the given price level.
There will be a downward movement along the demand curve.
The demand curve will become steeper.
20. The market demand curve is derived by:
studying an individual’s demand for a product over a year.
comparing the monthly consumption of a group of people.
surveying a set of consumers and ascertaining their preferences.
adding up the quantities that consumers in a market are willing and able to purchase at each price.
calculating the average price a random sample of consumers are willing to pay for a product.
The table given below reports the quantity demanded of a good by individuals 1, 2, and 3 at different prices.
Table 3.1
21. Refer to Table 3.1. Calculate the market demand at prices $5, $4, $3, $2, and $1 respectively.
Market demand is 30, 40, 50, 60, and 70
Market demand is 30, 60, 90, 120, and 150
Market demand is 30, 50, 70, 90, and 1,100
Market demand is 10, 30, 40, 50, and 70
Market demand is 10, 20, 30, 40, and 50
22. Refer to Table 3.1. If Quantity Demanded 1, Quantity Demanded 2, and Quantity Demanded 3 are market demand