قارن الطرق

	Intergenerational Elasticity	Log-Linear Mobility Model
المجال	Sociology	Sociology
العائلة	Regression model	Regression model
سنة النشأة	1992	1970s
صاحب الطريقة	Gary Solon (modern estimation)	Leo Goodman; Robert Hauser
النوع	Regression-based measure of intergenerational income persistence	Log-linear / Poisson model for cell counts in mobility tables
المصدر التأسيسي	Solon, G. (1992). Intergenerational income mobility in the United States. American Economic Review, 82(3), 393–408.	Hauser, R. M. (1978). A structural model of the mobility table. Social Forces, 56(3), 919–953.
الأسماء البديلة	IGE, intergenerational income elasticity, intergenerational income persistence, father-son income elasticity	log-linear model for mobility, topological mobility model, quasi-independence model, levels model
ذات صلة	5	5
الملخص	The intergenerational elasticity of income (IGE) is the workhorse measure of economic mobility: the regression coefficient from regressing a child's adult log income on the parent's log income. It expresses the percentage by which a child's expected income rises for each one-percent increase in parental income, so a higher IGE means income advantages and disadvantages are more strongly transmitted across generations and society is less mobile.	Log-linear mobility models analyze an origin-by-destination mobility table by modeling the logarithm of its expected cell counts as a sum of terms: separate effects for the origin and destination marginals plus interaction terms that capture the origin–destination association. By specifying that association parametrically — through diagonal, level, or scaled terms — these models test precise hypotheses about the structure of social fluidity independent of the changing sizes of classes.