The health impacts of environmental exposure may not appear at the time when it is measured, but may be delayed and/or last for a long period. This phenomenon is called lagged effect, which is usually ...

For each lagged endogenous variable, specify the name of the lagged variable, the name of the endogenous variable that was lagged, and the degree of the lag. Only one LAGGED statement is allowed. The ...

difference with lag length truncated and missing values converted to zero; If you do not specify n, the number of periods is assumed to be one. For example, LAG(X) is the same as LAG1(X). No more than ...