 This paper presents two estimation formulations  for confirmatory and exploratory SEM in path analysis problems where a zero pattern of the estimated path coefficient matrix explains a causality structure of the variables.
<meaning-changed>  This paper presents two estimation formulations  for confirmatory and exploratory SEM in path analysis problems where a zero pattern of the estimated path coefficient matrix explains a causality structure of the variables.
 This paper presents two estimation formulations , one each for confirmatory and exploratory SEM in path analysis problems where a zero pattern of the estimated path coefficient matrix explains a causality structure of the variables.