過去國外的實證研究結果指出，民眾在退休後的消費支出會有減少的現象，文獻稱此現象為 “退休消費的難題 （Retirement Consumption Puzzle）”。本研究主要目的在於探討不同世代是否在退休消費難題的程度上有所差異。研究結果顯示，臺灣民眾在退休後，家戶的消費並未有顯著的減少現象，但對不同世代戶長退休後的家戶消費行為進行分析，本研究發現相較於20年代的家戶，40年代的退休家戶其退休後的消費有顯著減少現象，可能的原因在於年輕世代面臨人口平均餘命增加所產生的長壽風險，而人口結構老化使得過去養兒防老的觀念式微，以及年輕世代對未來退休金制度產生疑慮，使得年輕世代家戶退休後的消費有顯著下降的現象，此結論顯示不同世代在退休後的消費行為確有顯著差異。 / The world is facing the dual effect of life expectancy and declining fertility, this phenomenon will enable society and individuals exposed to the longevity risk. In this study, we use “The Survey of Family Income and Expenditure” from Directorate-General of Budget, Accounting and Statistics, Executive Yuan, R.O.C.（Taiwan）. The results show that there is a decline in the expenditure of food after retirement, and younger generations decline less than elder generation obviously. There are also declines in work-related expenditures, including clothing, transportations and communication. It means that retired-consumption puzzle is not obvious to younger generations. While the consumption of home management, recreation and education do not drop after retirement, showing leisure time increase and also increase those consumption. Health and medical expense is related to the age and health status, not to the status of work. Total consumption expenditure is no significant correlation with retirement. Finally, there is a trend of younger generation consumption increase. Comparing, it may have retirement plan to support the increasing consumption.