Demand changes can effect on quantity of supply in both positive and negative ways. For this time, we will look at 5 factors of demand shifters and how they affect on price and quantity of products in the market.

Five Demand Shifter Factors are as follows;
- Number of potential buyers in the market – increase or decrease of buyers wanting to buy product in the market
- Buyers’ taste and preferences – fashion products as jeans may be in trend this season, the buyers want to buy them so the price goes up. For next season, the same model of jeans may not be a fashion trend so buyers don’t want to buy them. The price will drastically drop.
- Buyers’ income – Increase in buyers’ income will have a great purchasing power. Conversely, decrease in buyers’ income will badly affect on demand to buy things.
- Buyers’ expectation – This is the expectation of buyers of future market conditions and it will impact on the economy outlook if there are a lot of buyers having the same expectations.
- Price of substitute and complementary goods – Substitute goods are products that can be use in place of one another such as potatoes and rice. Complementary goods are products the used together such car and fuel.





