The response that describes an economic push factor is hyperinflation. Hyperinflation refers to an extremely high and typically accelerating rate of inflation, which can lead to economic instability and cause people to leave a country in search of better economic conditions elsewhere.
In contrast, brain drain refers to the emigration of highly skilled or educated individuals, which can also be seen as a consequence of push factors rather than a direct economic push factor. Land ownership and remittances are usually associated with pull factors or economic conditions in the destination country rather than being direct push factors.