On Sat, 19 Oct 2013, Ignacio Martinez wrote:
I want to estimate the following fixed effect model: y_i,t = alpha_i + beta_1 x1_t + beta_2 x2_i,tx2_i,t = gamma_i + gamma_1 x1_t + gamma_2 Z1_i + gamma_3 Z2_i I can use ivreg from AER to do the iv regression. fm <- ivreg(y_i,t ~ x1_t + x2_i,t | x1_t + Z1_i + Z2_i, data = DataSet) But, I'm not sure how can I add the fixed effects.
You can simply add a factor coding the variable with respect to which you want to compute fixed effects. In help("Fatalities", package = "AER") there is an example (starting with "pp. 360") that shows how to do this for OLS. In principle, the same approach can be used for IV.
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