How to create a dummy variable for time series data

[Tonie Tipson]

So I'm trying to create a dummy variable for the global financial crisis of 2007-2008. My data runs from 1970-2019.
so this is what i did;

gen z=0
replace z=1 if Year=2007
replace z=1 if Year=2008

long story short, this is wrong. I've tried absolutely everything. Would appreciate if someone could help!

[Nate Tillern]

Syntax for conditionals is two equal signs. Try:

replace z = 1 if Year == 2007 | Year == 2008

[Tonie Tipson]

This worked perfectly, May God bless you!