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A platform for research: civil engineering, architecture and urbanism
The role of age in the decision to migrate
Abstract The consistent negative relationship between migration frequency and age is consistently verified by empirical data, but theoretical explanations have been lacking. The purpose of this paper is to articulate a formal theoretical model that predicts this relationship. The model is not intended to completely describe the migration process but focuses only on the fundamentals of the decision. The argument can be summarized as follows: because work-life expectancy is a declining function of age of family head, the older individual has a shorter time period to capture a positive utility differential at an alternative location. This implies that the present value of the utility differential stream will also fall with age. As it is probable that moving costs are either constant or an increasing function of age, the probability that the present value of the utility stream will exceed moving costs will also decline. Thus, the migration rate, implicitly defined as the probability of migrating multiplied by the number of people in a given age cohort, will vary inversely with age.
The role of age in the decision to migrate
Abstract The consistent negative relationship between migration frequency and age is consistently verified by empirical data, but theoretical explanations have been lacking. The purpose of this paper is to articulate a formal theoretical model that predicts this relationship. The model is not intended to completely describe the migration process but focuses only on the fundamentals of the decision. The argument can be summarized as follows: because work-life expectancy is a declining function of age of family head, the older individual has a shorter time period to capture a positive utility differential at an alternative location. This implies that the present value of the utility differential stream will also fall with age. As it is probable that moving costs are either constant or an increasing function of age, the probability that the present value of the utility stream will exceed moving costs will also decline. Thus, the migration rate, implicitly defined as the probability of migrating multiplied by the number of people in a given age cohort, will vary inversely with age.
The role of age in the decision to migrate
Cris Lewis, W. (author)
1977
Article (Journal)
English
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