"When global growth slows, what tends to happen is fewer people come to New Zealand. We are very far away, we are very expensive," Mr Eaqub said.
"If you're losing your jobs in Europe and the United States, you probably aren't going to come on a very expensive holiday to the other side of the world."
Tourism was a big export for New Zealand, rivalling dairying in foreign exchange earnings, so any slowdown would be felt throughout the economy; the most obvious result being job losses.
"For tourism the big risk is we don't get as many of the high-spending, long-staying tourists, (who are) obviously very good for the New Zealand economy."
The export sector, particularly non-food products manufactured here, would also feel an immediate export as people tightened their belts.
For the rural export sector, which produced mainly food-based products, the outlook was better but lower prices were likely, Mr Eaqub said.
The biggest unknown was around lending and what it would cost.
"When there is a slowdown in the global economy, and especially if it is disruptive like during the global financial crisis, what can happen is our banks have more difficulty raising funds," he said.
"The consequence of that is the cost of borrowing in New Zealand tends to go up and there is less money available to be lent out to kiwis."
However, Mr Eaqub said people should not panic as there was nothing yet to suggest banks were finding it hard to get money, or that the cost of borrowing had increased.
The Reserve Bank last week kept the Official Cash Rate at 2.5 per cent and it is widely predicted to stay there for the next six months.
The IMF has 187 member nations, conducts economic analysis and lends money to countries in financial distress.
It will hold its annual meetings with the World Bank later this week in Washington.