Using `xtreg` (Fixed Effects)

Using mm.dta:

• Tell Stata that your dataset is a panel using the xtset command. Specify qnno tindex as the panel identifiers.
• Run a fixed effects regression of yield on totfertcostha using the xtreg command with the , fe option. Cluster standard errors at the qnno level.

1. Use eststo to save the FE results. Then adapt the table structure from the previous exercise to create a table of results with a fifth column headed FE.
2. What is the coefficient on fertilizer cost in the FE regression and how does it compare to the coefficients you calculated in Exercises 1-3?

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