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Dear All: I want to estimate a simple recursive mode in R. Which package should I use? Thank you very much in advance. Yongfu He _________________________________________________________________ [[alternative HTML version deleted]]

...ors, equation-by-equation OLS regression, using lm(), will give you the full-information maximum-likelihood estimates of the structural coefficients. You could also use the sem() function in the sem package, but, aside from getting a test of over-identifying restrictions (assuming that the model is overidentified), there's not much reason to do so -- you'll get the same estimates. I hope this helps, John -------------------------------- John Fox, Professor Department of Sociology McMaster University Hamilton, Ontario, Canada L8S 4M4 905-525-9140x23604 http://socserv.mcmaster.ca/jfox > -----...