This paper reviews the arguments concerning whether internal and international migration can or should be incorporated in the same migration theories or models and examines the ways in which the 2 processes are linked in a variety of contexts. To provide some illustrative empirical results, reference is made to the Philippine Migration Study (PMS), a research project which incorporates both internal and international migration in its research design. The study examined migration from Ilocos Norte to the principal internal destination, Manila, and the principal international destination, Honolulu. Ilocos Norte is a largely rural, resource poor province with a long history of outmigration that is attributable primarily to population pressure in the region. Due to the fact that 1 of the principal migration streams from the Ilocos is within the Philippines and the other is outside the country, the Ilocos presents an ideal situation for a comparative analysis of internal and international migration. The study consists of 7 different surveys conducted in Ilocos Norte, Manila, and Honolulu between 1980-83. More than 5000 interviews were conducted in the 3 locations. The initial baseline survey in Ilocos Norte was conducted in 1980. After 2-1/2 years, the initial 830 households in the Ilocos Baseline Survey were recontacted to determine the migration behavior of the household members since the 1st survey. Those who had moved to either Manila or Hawaii during this period were traced to the destination and interviewed there. The PMS uses a single integrated model (the value-expectancy or VE framework) to explore migration decision making for both internal and external migration. Despite the complexity of the VE questions, respondents were able to distinguish different locations as being relatively good places or bad places to realize their different goals. Manila was not highly regarded by Ilocanos in most respects, and there was not a single value on which Manila ranked higher than both alternative locations. Relative to the other values, however, Manila is seen as being a good place for educational opportunities and entertainment. Hawaii rated very well on items having to do with wealth and status, but was regarded as a relatively poor place to satisfy one's desire for affiliation. Comfort, affiliation, and morality were viewed as being most easily achieved in the present barangay. Based upon the value-expectancy framework, the findings of the Philippine Migration Study confirm that a global model of migration decision making is feasible and that other important concepts in migration equally apply well in the case of both internal and international population movements.

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residential mobility Research Methodology Americas population demography developing country Population Dynamics motivation Developing Countries statistics Asia Migration, Internal Developed Countries United States North America psychology Southeast Asia Psychological Factors Behavior Western Hemisphere theoretical model Models, Theoretical Article rural-urban migration migration international migration developed country data analysis Demographic Factors Southeastern Asia research Emigration and Immigration Northern America decision making Philippines Hawaii Asia, Southeastern