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Dear George,

I am trying to use two instruments x1w and x2w for the endogenous variable yw.

The response variable say y depends on the endogenous variable yw and other two regressors x1 and x2 (not instrumented)

If I give the command

iv cons x1w x2w x1 x2: runmlwin y cons yw x1 x2, level1(l1id ...