The effects of the following transactions on demand are:
- When small cars are treated as the more fashionable so the demand should be increased.
- When the price of large care rises so the demand should be increased.
- When income falls and the small cars should be inferior goods so the demand should be increased.
- The price of the small cars should be reduced so here the demand should be decreased.
- The gasoline price should fall so the demand can't be determined.
In this way, the effects should be done.
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