Assume there is a simultaneous decrease in the incomes of people in the market for new homes and a decrease in the wages paid to carpenters, plumbers, and electricians. All else constant, we can predict, with certainty, that in the market for new homes the equilibrium:

Lower price for new houses.

Explanation:

The decrease in the income of people will decrease the demand for houses and the demand curve will shift leftwards. Meanwhile, the decrease in the wages for carpenters, plumbers, etc will decrease the cost of production so the producer will supply more when the cost of production decreases. So supply curve will shift rightwards. Resulting there will be lower prices due to shifts in the leftward demand curve and rightward supply curve.

1. c

2. b

3. a

4. c

5. a

6. b

7. c

8. c

9.b

10. d

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