1. Why a lot of HKU students choose Mobile 3 Vivid, Liu Chu

2. My Presentation Part Ⅰ : The cost of choosing 3 Part Ⅰ : The cost of choosing 3 Part Ⅱ : The benefit Part Ⅱ : The benefit

3. $58 up to 550 min talk free intranet messages 0 $58 550min

4. Do you make phone calls up to 550 minutes every month?

5. Other alternatives? Other alternatives? Peoples Peoples $0.05/min $0.05/min 550min: $27.5 550min: $27.5 $58-$27.5=$30.5 $58-$27.5=$30.5 Why 3 then??? SMS messages~ Free!

6. Network economy P1 P2 D D’ S

8. Temporary Card If don’t join: If don’t join: $0.3 /min $0.3 /min $1/ message $1/ message

9. Nicole & I

10. So the Cost is: Friends~

11. Suppose: In order to have more friends, we’d like to pay $10/mon In order to have more friends, we’d like to pay $10/mon By choosing this price plan, we end up paying $8 more every month. By choosing this price plan, we end up paying $8 more every month. Will you choose it? Will you choose it?

12. Will you join? A temporary card 3months You join You don’t join Others join Others don’t join Others join Others don’t join A B Lots of friends though pay more Pay more Pay less but less friends Pay less and other ways to find friends $10-$8=$2 0

13. Hello, can anyone send me a message?…………