Industrial Engineering

Recently I'm thinking of what engineering I should study in the future..
Before I got JPA scholarships,
Aeronautical Engineering was my choice..
But the economy crisis really affects a lot,
the airlines are all having financial problems..
What do you think,
how long can a company stay firm while experiencing loss annually??
If still I want to stick to this plan, I afraid that I'll be jobless anytime in the future...

Mechanical Engineering then came to my mind...
I believe this is a good choice..
Germany is famous for its machinery n manufacturing..
Mechanical or even Mechatronics in Germany,
not to say may guarantee me a luxurious life,
but a least, a job...
The problem is,
Too many are studying mechanical engineering...
If i were to be a great competitor,
I afraid that I've to be really really really outstanding...
A machine should always function optimally..
It will only be worn-out if we over-run it..
I know how good I am..
No point to force myself completing impossible task..
But my brother has his point, nothing's easy...
Studying hard doesn't equal to good results
Good results doesn't equal to good future...

Then I think,
I should choose something that interests me the most..
Then only I realize, I'm quite into economics n finance now...
Maybe get affected by my brother..
I start reading economic newspapers...
The words related to the economy or business,
will also attract my attention...
But I have a contract with JPA now...
Contract states that I've to study engineering in Germany...
Although there is financial engineering,
I don't think JPA will allow me to study that course in Germany...
So, just forget about it..

Then I found Industrial Engineering...
Industrial engineers have to create a system for a factory or a company to produce goods and services optimally,
by integrating human, information, material, monetary, and technological resources...
After gathering information from the internet, industrial engineering sounds more towards to management, which is good to me...
Not to say I'm good in leading people,
but I think, I'm better when dealing with people than the machines...
The concern now is, is it worth studying this course in Germany??
As I said, Germany is well-known for its machinery and manufacturing...
Now I choose to study a course which is more towards to management..
Is it a good course in Germany???
I really need a lot of opinions about it...
Anybody knows industrial engineering well???

My brother's advice to me is, I should write to the Fachhochschule in Germany...
Ask them about the outline of this course...
True also.. That's a more efficient and easier way to make everything clear...
Maybe I should only decide after getting replies from them...
But meanwhile I should also consider other engineering courses..
So guys, any suggestions???