Are the following movements or shifts along/of the demand curve:

1. A decrease in the number of consumers

2. A change in tastes of consumers that makes them desire more hot dogs

3. An increase in the price of hot dogs

Any movement which is caused by price will be along the demand curve and any other movement caused by non price factors will shift the demand curve.

1) A decrease in the number of consumers is a non price movement so the demand curve will shift leftwards because of it.

2) A change in taste of consumers making them desire more hot dogs is a non price movement and it will shift the demand curve to the right.

3) An increase in the price of hot dogs is a price movement and this will cause movement along the demand curve.