Hi, Stata.

I want to create the wanted dummy to equal 1 if scaledummy is equal 1 in 3 continuous years. If the scaledummy is equal 1 in year 1,2 and 3, the wanted dummy should be equal 1 in year 3 on panel level.

Best regards,
Ole Karlsen

firm year scaledummy wanted
1 2015 0 0
1 2016 1 0
1 2017 1 0
1 2018 1 1
1 2004 0 0
2 2005 1 0
2 2006 1 0
2 2007 0 0
2 2008 0 0
3 2004 0 0
3 2005 1 0
3 2006 1 0
3 2007 1 1
3 2008 1 1
3 2009 0 0