Right Management, a division of staffing giant Manpower, ran a poll on its website in May and June, and got 569 responses.

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Singapore's Ministry of Manpower even has an international talent division.

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According to a new study from Right Management, the human resources consulting division of the staffing firm Manpower, 46% of employees failed to use all their vacation days in 2010.

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"Foreign workers complement the resident workforce in certain sectors, such as the construction and marine sectors, by taking on lower-skilled jobs that support higher-tier professional jobs held by Singaporeans, " the Ministry of Manpower's National Population and Talent Division said in a report.

BBC: Singapore: Economic slowdown opens foreign labour debate