2. Demand Flashcards
Demand
the amount of goods and services that consumers are willing and able to buy at a certain price over a certain period of time
Law of demand
If D increases, P and Qd increase – proportional
If P increases, D and Qd decrease – inverse proportional
graph the law of demand
…
What does it mean when the D curve is completely linear?
That P and Qd are completely in equilibrium (which is not the case irl - D never actually meets S and vice versa).
change in P or Qd results in…
change in D results in…
movement along the D curve
shift of the D curve
2 types of demand determinants
- price
- non-price
a) income
b) price of other products
c) preferences (on a personal level)
d) future price expectations
e) marketing (heavy advertising)
f) number of consumers
*government intervention (income tax)
a) income (Y)
- (also income tax)
- increase in Y: normal goods – increase in D (increase in P in the long run - producers need time to adapt )
- increase in Y: inferior goods – decrease in D (more money, people can buy more expensive products)
types of other products
i) substitute
- if there is an increase in P of one product there will be a decrease in Qd for that product and an increase in Qd demanded (D) of its substitute
ii) complementary goods
– proportional relationship (phones and chargers)
iii) unrelated goods
– no relationship
d) future price expectations
– if P will rise in the future they will buy more of the product now (increase in demand)
- producers will decrease the supply because they’ll want to sell more later when the prices rise (shift of S to the left)
f) number of consumers
– more consumers=greater demand (tourists – during summer)
Change in income tax results in…
…change of income and demand (P changes when there is a change in VAT indirect tax).
- can also be changed by the syndicates exerting pressure on the government after being unsatisfied
Price of money is the…
…interest rate (in banks), low interest rate = price of money is low.