acutalli i will correct myself abt what i said b4 abt case studies...
1 is okay, but 2 is desirable this is because
1. soemtimes one partiuclar caese studi does not have all the info, hence if u have another to fill in the missing bit and add extra stuff to other bits then thatz good,
2. some markers......note some... like to see the *compounding effect* ..ie: they take note of how mani businesses you add in.
overall there are a few ways u can approach using case studies:
1. have on massive one that covers everything absotluetli everything, hence you are able to talk abt it thoroughly if they ask for ani partiuclar topic
2. have 2, use them complementarily
3. have 1 big one and a few little ones, just to mention them in passing, eg: not only does Qantas use this strategy, TIB Ltd also uses this and ever since its implementartion in 2001, it has being experiencing a rise in net profit by a steady 3% per annum.
4. have lots of little ones...
those 4 mehtods are all being used by students.....some markers prefer mehtod 4 cuz it shows the student has a lot of knowledge, but at the same time, the student risks generalisaing himself due to the quantitiy, mixed with the time constraint, often quality suffers.
i say method 2 is the most desirable, or even method 3 except with 2 big case studies instead of 1..... but remember dont go overboard with case studies, cuz u will lose some markers....