. xtlogit z     xfe2     far3    fifr3    lngdp culture easy mjd wage3  holdfirst2  dlsize3   bods
> ize3     i.type  i.ind1  i.control sharehold3  roe3  roa2   lev3  cf3  fix3 intangible3   grow2
>  change3       lnpeople3   lnsize2 lngdsize2     i.year  i.guocheng  age3 man3 woman3,fe nolog
note: woman3 omitted because of collinearity
note: multiple positive outcomes within groups encountered.
note: 1 group (1 obs) dropped because of all positive or
      all negative outcomes.
note: 2009.year omitted because of no within-group variance.
note: 2010.year omitted because of no within-group variance.
note: 2011.year omitted because of no within-group variance.
note: 2012.year omitted because of no within-group variance.
note: 2013.year omitted because of no within-group variance.
note: 2014.year omitted because of no within-group variance.
note: 2015.year omitted because of no within-group variance.