The document discusses reasons for premature return and poor retention of expatriates among multinational corporations. Failed assignments due to expatriates returning early can result in direct costs like salaries and indirect costs like loss of market share. Poor selection that does not consider interpersonal skills can also contribute to failure. Additionally, about 25% of expatriates who complete assignments choose to leave their company upon returning due to issues like reverse culture shock from differences between remembered and actual home culture, as well as changes that occurred during their time abroad. Solutions proposed include improving selection processes, providing support during expatriation and repatriation through programs.