"in" or "on"

[Shon]

Hi

What is the correct usage?

a) I am working as the consultant for two projects in (on) sustainable development.

b) I am writing a research paper on (in) women's health.

c) I am doing research in (on) robotics.

Regards
Shon

[MrPedantic]

Hello Shon, welcome to UE!

In these examples, "in" suggests "in the field of", whereas "on" suggests "on the subject of".

So you might say that "in" suggests a "from the inside" approach, while "on" suggests a "from the outside" approach.

I would probably use "on" for the first two; for 3, you also have the option "research into", which might be best.

All the best,
MrP