Could you please tell me what it isuse what theroy

Rather than exporting or FDI I can negotiate a contract that gives another company the right to make my product in their country.This is known as:

When an immigrant sends money to his or her family back in their home country. (its difficult to measure)

When more expensive goods sourced from inside a customs union replace the consumption of less expensive goods from outside the customs union.

A situation in which a higher tariff is triggered after imports reach a certain threshold.

This part of the balance of payments provides a measure of short term inflows and outflows of wealth in a country during a period of time.