"Falling down the rankings of the most expensive cities to send your workforce to is actually great news for New Zealand employers wanting to attract global talent."
A weaker New Zealand dollar meant it was more cost effective for multinational companies to send their talent to our shores, she said.
"International compensation is an increasing concern for many multinational companies operating in a variety of economic, social and political contexts.
However, Joanna Rapley from Alpha Recruitment, which does some international recruitment, said most people moving to New Zealand did so for the lifestyle - and this was particularly the case for immigrants from the UK and South Africa.
"They'll bring their children here, to bring them up, or they'll come here in their latter years for their retirement," she said.
"I'm not sure that they're coming here for the money, that's not really a key driver."
Walter Stone from Eagle Migration agreed that lifestyle was the main attraction for immigrants, pointing out that salaries in Australia were often higher.
While they might look at the cost of living, currency changes were not a concern for most of his clients, he said.
According to the survey, Asian and European cities - particularly Hong Kong, Zurich, Singapore and Geneva - topped the list of the most expensive cities for expatriates.
At number one for the third consecutive year was Luanda, the capital of Angola - despite being a relatively inexpensive city, the cost of important goods and safe living conditions are priced steeply.
The survey includes 207 cities worldwide and measures the comparative cost of each location, including housing, transportation, food, clothing, household goods, and entertainment.
Mercer Cost of Living Survey - Worldwide Rankings 2015
The most expensive
1. Luanda, Angola
2. Hong Kong, Hong Kong
3. Zurich, Switzerland
4. Singapore, Singapore
5. Geneva, Switzerland
6. Shanghai, China
7. Beijing, China
8. Seoul, South Korea
9. Bern, Switzerland
10. N'Djamena, Chad
The cheapest
1. Bishkek, Kyrgyzstan
2. Windhoek, Namibia
3. Karachi, Pakistan
4. Tunis, Tunisia
5. Skopje, Macedonia
6. Banjul, Gambia
7. Minsk, Belarus
8. Cape Town, South Africa
9. Managua, Nicaragua
10. Tbilisi, Georgia