Averages across years

PROC MEANS nolabel DATA=[dataset] ;
CLASS [year];
VAR [variable];
OUTPUT OUT=[dataset] MEAN= ;
RUN;

MEAN can be replaced by MEDIAN.

Source

Esttab and multiple dummy indicators

Suppose your empirical specification has both unit and time fixed effects. You don't the table to be cluttered with n or m variables, do you?

Including indicate("Time fixed effects = " "Unit fixed effects = ") after esttab will do the trick. Note the STATA output to determine what to put after the equal signs.

Ado Path

Emerald at UNC has STATA 11.2 but is not cooperative when it comes to downloading *.ado files (e.g. estout). So I downloaded estout in STATA 9.2 through Latte at Fuqua and then copied the folder to my Emerald account. Do note that you must use "scp" and not "sftp" due to the latter's restriction on recursive copying (i.e. folders).

The help for adopath suggested that the folder be copied to the "/netscr/[username]" folder. After that, esttab worked just fine.