The Chinese mainland overtook Hong Kong as the destination of choice for expats in Asia, according to a new survey by HSBC. The decision by expats to move to China is still mainly driven by economic factors, the survey showed. Seven in ten expats moved to the mainland because of better job opportunities, whereas only four in ten emigrated to Hong Kong to move up the career ladder. One reason for the increased appeal of the mainland over Hong Kong could be the comparatively inexpensive cost of living.