Question 11. The falling of the price of some goods and attracting more buyers/consumers – (b)
the substitution effect
Question 12. The price of the red herring is (a) $96
Question 13. As the demand curve becomes more inelastic, the consumer surplus in the market
tends to – (a) increase
Question 14. The quantity of good demanded by a typical consumer increases in response to the
growth in purchases by the other consumers – (b) a positive network externality is present
Question 15. The variable input in the long run – (a) labour
Question 16. The figure showing the impact of technological improvement conveys the message
that – (b) technology causes an increase in the output per time period, but as the production
functions show, the contributions of technology are also subject to diminishing marginal
returns
Question 17. The output in the isoquant map shows – (b) diminishing marginal returns
Question 18. Increasing the inputs by 9% but the output increases by less than 9% - (a)
decreasing returns to scale
Question 19. The situation pictured in the figure – (c) shows a constant returns to scale
Question 20. The MRTS for isoquants in a fixed-proportion production function is – (a) zero or
one