Entering into a developed foreign market is about taking the
existing consumers and giving them another item to consider for
purchase. Entering an untapped market is about gaining the interest
of a consumer that has never been exposed to a product before. The
market is untouched so there is not another item to pick between,
but still challenging because you are introducing something new.
The initial investment in an untapped market could be higher due to
the need to educate and inform customers in addition to
advertising.