These are the Stata commands used to generate Tables 2 and 3 in the article "Entrepreneurship 
and the Policy Environment" by Yannis Georgellis and Howard J. Wall for the March/April 2006 
Vol. 88(2) issue of the Federal Reserve Bank of St. Louis Review.

Variable descriptions can be found in the excel data sheet: 
Review-Georgellis-Wall-Entrepreneurship.xls
This used Intercooled Stata 7.0



/*Some basic calculations*/

generate rycap=ypercap/cpi;
generate rwlthcap=wlthcap/cpi;
generate homex2 = homex^2;
generate homex3 = homex^3;
generate maxmtax2 = maxmtax^2;
generate maxmtax3 = maxmtax^3;


/*The following generates the numbers for Table 2 (Baseline FGLS Results)*/

xtgls nfpropop homex homex2 homex3 maxmtax maxmtax2 maxmtax3
    unemp rycap relpropy rwlthcap i1-i9
    age2-age3 femshare black native asian hispanic
    y2-y8 s2-s50, i(state) t(year) p(h) c(p);


/*The remaining parts generate the numbers for Table 3 (Alternative FGLS Results)**

/*Alternative I*/
xtgls nfpropop homex maxmtax
    unemp rycap relpropy rwlthcap i1-i9
    age2-age3 femshare black native asian hispanic
    y2-y8 s2-s50, i(state) t(year) p(h) c(p);

/*Alternative II*/
xtgls nfpropop homex homex2 maxmtax maxmtax2
    unemp rycap relpropy rwlthcap i1-i9
    age2-age3 femshare black native asian hispanic
    y2-y8 s2-s50, i(state) t(year) p(h) c(p);

/*Alternative III*/
xtgls nfpropop homex homex2 homex3 maxmtax maxmtax2
    unemp rycap relpropy rwlthcap i1-i9
    age2-age3 femshare black native asian hispanic
    y2-y8, i(state) t(year) p(h) c(p);

/*Alternative IV*/
xtgls nfpropop homex homex2 homex3 maxmtax maxmtax2
    unemp rycap relpropy rwlthcap i1-i9
    age2-age3 femshare black native asian hispanic
    y2-y8 s2-s50, i(state) t(year) p(iid) c(p);

/*Alternative V*/
xtgls nfpropop homex homex2 homex3 maxmtax maxmtax2
    unemp rycap relpropy rwlthcap i1-i9
    age2-age3 femshare black native asian hispanic
    y2-y8 s2-s50, i(state) t(year) p(h) c(i);

/*Alternative VI*/
xtgls nfpropop homex homex2 homex3 maxmtax maxmtax2
    unemp rycap relpropy rwlthcap i1-i9
    age2-age3 femshare black native asian hispanic
    y2-y8 s2-s50, i(state) t(year) p(h) c(a);