De or het meerinvestering?

The correct Dutch article is:

de meerinvestering

Rule Words ending in -ing: almost always de. See the rule

How to use meerinvestering

the meerinvesteringde meerinvestering
this meerinvesteringdeze meerinvestering
that meerinvesteringdie meerinvestering
our meerinvesteringonze meerinvestering
your meerinvesteringjouw meerinvestering
every meerinvesteringelke meerinvestering
which meerinvestering?welke meerinvestering?
a big meerinvestering / the big meerinvesteringeen grote meerinvestering, de grote meerinvestering