Hallo Ila
there is no difference in the translation. We in Germany say it like you said: Bachelor in Economics or you can also say: Bachelor in Wirtschaftswissenschaften ( in Economics ).
We always use the english title and everyone knows what you mean.
I graduated with a bachelor's degree in economics from the University of XXXX.
economics=Betriebswirtschaft/Wirtschaftswissenschaft
Best wishes
Denny