👉 In econometrics, an "exogamic" variable is a variable that is not measured in the same way as its exogenous variables. This can happen when there are no exogenous variables to measure, or when the exogenous variables do not provide enough information about the target outcome. Exogamic variables are often used in regression analysis to estimate relationships between the target outcome and other variables. For example, if a researcher is studying the relationship between smoking habits and heart disease risk, they may choose