China is one of the easiest places for recruiters to lure expatriate executives, but is also one of the hardest places for them to succeed, according to a survey, Reuters reported. The 10th quarterly executive recruiter index released by executive recruitment firm Korn/Ferry International, which surveyed more than 140 international recruiters, found success was toughest for expatriates in China, Japan and South Korea. Reasons that assignments failed included the lack of cultural fit, family or personal issues or a lack of direction from managers, the survey showed. "High-growth emerging nations often offer the greatest opportunities for expatriates, but they can also come with the most challenges," Chris van Someren, president of Korn/Ferry said in a statement. The poll found the average ideal length for an expatriate posting was about two-and-a-half years.