The unexpected flood of tourists causes the population of Houston to increase. With more scone consumers in Houston, the demand for scones increases, which shifts the demand curve to the right.
Note that the supply curve does not shift because none of the factors affecting supply have changed. In particular, the supply curve shifts in response to changes in the following:
• | Price of inputs |
• | Production technology |
• | Number of producers |
• | Expectations of producers |