2. Demand (schedule) 是不是可以不成比例? 只要符合law of demand就可以?
i.e.
$2->8個
$3->5個
$4->4個
$5->1個
咁plot出來個graph就唔係直線...
3. Why demand is larger if the same quantities are spread over a shorter period?
4. 書入面的exercise, 關於relative price
Ten years ago, it cost $1 to print a photograph.Today, it costs $1.2 to print one.
Ten years ago,an electronic calculator cost $100.Today, a similar model costs $50
a. How has the relative price (in terms of calculators) of printing a photograph changed?
from 1/100=0.01 to 1.2/50= 0.024
b. How has the relative price (in terms of other goods in general) of printing a photograph changed?
我唔知part b 個<in terms of other goods in general> 係咩意思....
更新1:
仲有, 既然Price is determined by market demand and supply, 咁點解係real life中, 仲會有shortage/ surplus 呢?