Swamy, P. A. V. B.; Tavlas, George S.; Hall, Stephen G. - In: Econometrics 3 (2015) 1, pp. 55-64
The method of instrumental variables (IV) and the generalized method of moments (GMM), and their applications to the estimation of errors-in-variables and simultaneous equations models in econometrics, require data on a sufficient number of instrumental variables that are both exogenous and...