Reading 40 Schweser, Challenge Problem 14

In this question on currency forwards, the answer is based on a 365 day convention on the forward pricing. I have seen on formula sheets the 360 day convention…Which is correct?

In Economics, they assume nominal interest rates with 360 days per year.

In Derivatives, they assume effective interest rates with 365 days per year.

Thanks for your input!

You’re welcome.