Second Language Acquisition （SLA） is influenced by many different factors. This paper attempts to discuss the age factor in SLA, particularly explores the learners＇ acquisition of accent. The author firstly introdu...Second Language Acquisition （SLA） is influenced by many different factors. This paper attempts to discuss the age factor in SLA, particularly explores the learners＇ acquisition of accent. The author firstly introduces the topic and reviews the literature on Critical Period Hypothesis （CPH）. Then, the optimal age to attain the native-like accent is discussed. Finally, the author describes some other elements that influence the acquisition of accent and draws a natural conclusion that the topic in this paper needs more profound research.展开更多
In this paper, a life-cycle model with retirement is set up to study how an individual chooses the optimal retiring age on account of wage growth rate, longevity and healthy state. It is proved that there exists optim...In this paper, a life-cycle model with retirement is set up to study how an individual chooses the optimal retiring age on account of wage growth rate, longevity and healthy state. It is proved that there exists optimal retiring age under given conditions. The numerical simulations are given to show how wage growth rate, longevity and healthy state affect retiring age.展开更多
文摘Second Language Acquisition （SLA） is influenced by many different factors. This paper attempts to discuss the age factor in SLA, particularly explores the learners＇ acquisition of accent. The author firstly introduces the topic and reviews the literature on Critical Period Hypothesis （CPH）. Then, the optimal age to attain the native-like accent is discussed. Finally, the author describes some other elements that influence the acquisition of accent and draws a natural conclusion that the topic in this paper needs more profound research.
基金Supported by the National Natural Science Foundation of China(71271158)
文摘In this paper, a life-cycle model with retirement is set up to study how an individual chooses the optimal retiring age on account of wage growth rate, longevity and healthy state. It is proved that there exists optimal retiring age under given conditions. The numerical simulations are given to show how wage growth rate, longevity and healthy state affect retiring age.
