방법 비교

	Intergenerational Elasticity	Log-Linear Mobility Model
분야	Sociology	Sociology
계열	Regression model	Regression model
기원 연도	1992	1970s
창시자	Gary Solon (modern estimation)	Leo Goodman; Robert Hauser
유형	Regression-based measure of intergenerational income persistence	Log-linear / Poisson model for cell counts in mobility tables
원전	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.
별칭	IGE, intergenerational income elasticity, intergenerational income persistence, father-son income elasticity	log-linear model for mobility, topological mobility model, quasi-independence model, levels model
관련	5	5
요약	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.