free goods
the good that's unlimited in supply
example of free goods
air, sea, rain, water and sunlight
complementary goods
the good that are buy and use together
example of complementary goods
pencil and pencil case
substitute goods
the goods which are alternative and can be use instead of each other
example of substitute goods
almond milk and diary milk
normal goods
the goods that people want to buy more as their income increase
example of normal goods
quality bread and H&M cloths
luxury goods
the good which demand increase more than proportionally as increase rise
example of luxury goods
brand name hand bags
inferior goods
the good that people want to buy less as their income increase
example of inferior good
instant noodles and discounted bread