New method revolutionizes economic forecasting, improving accuracy and reliability.
The article presents new ways to estimate economic equations, focusing on LIML and 2SLS methods. These methods are similar and based on the method of moments. LIML uses a least-squares approach, treating the equation as an error-in-variables model. 2SLS is derived from an asymptotically valid approximation. LIML can be calculated iteratively starting from 2SLS. The traditional 2SLS method is also discussed in the article.