title: The subtle danger of symmetry restrictions in time series regressions, with application to fertility models.
mesh_terms: D003710:Demography; D005060:Europe; D005298:Fertility; D005387:Finland; D007226:Infant Mortality; D016014:Linear Models; D018803:Models, Economic; D008962:Models, Theoretical; D011153:Population; D011157:Population Dynamics; D012044:Regression Analysis; D012106:Research; D012537:Scandinavian and Nordic Countries; D013223:Statistics as Topic; D013997:Time Factors
keywords: Data Analysis; Demographic Analysis; Demographic Factors; Economic Model; Europe; Fertility; Fertility Determinants; Finland; Infant Mortality; Linear Regression; Mathematical Model; Models, Theoretical; Northern Europe; Population; Population Dynamics; Research Methodology; Scandinavia; Statistical Regression; Statistical Studies; Statistics; Time Factors