1.2.1 Demand Flashcards
demand
no of consumers willing and able to purchase a good or service at a given price
Demand curve
relationship between price and quantity demanded
shows quantity demanded for a good at any given price over period of time
price changes - movement along curve - inverse relationship
change in any factor other than price e.g tastes shown by shift in demand curve (increase demand = seen as shift in demand)
decrease price = increase quantity demanded
increase price = decrease quantity demanded
ceteris paribus
all other things being equal
complementary goods
bought in conjunction with each other
e.g. cars and petrol
normal goods
ones for which sales move in line with changes in consumer incomes e.g. sales at dry cleaner
inferior goods
sales fall when people are better off
rise when consumers struggling financially
DEMAND
SHIFT
PRICE
MOVEMENT
luxury goods
sales rise rapidly when people are better off
may fall rapidly in hard times
substitutes
products/services in competitions with each other
customers sub one for another
e.g. cadbury/galaxy
6 determinants of demand (change in demand)
- tastes (consumer preferences)
times, personal, experience/culture/mood/season - advertising/branding
change tastes, awareness, loyalty - income (reward for economic activity)
quantity demand is physically limited by income - population
size/age/different demographics - substitutes (alternatives)
price of one increase = demand of other increase
goods in competition = replacement - complementary products (used together/complement)
price of one increase = demand of other decrease
shift
anything to do with demand change curve moves
price
movement chose a different price point (dotted lines)