Spatial spillover effects of fiscal expenditure and economic opportunity on internal migration in Taiwan

The purpose of this study is to understand the determining factors of in-migrant population registration in various counties or cities in Taiwan. Panel data from counties and cities in Taiwan from 2000 to 2021 were adopted, and spatial econometric analysis was conducted using the spatial Durbin model. In terms of spatial spillover effects, the in-migrant population of each county or city is influenced by the fiscal expenditure and economic opportunity factors of neighboring counties or cities, such as (1) expenditure on education, science and culture, (2) number of employed population, (3) average annual regular income per household and (4) average disposable income per household.