Hi everyone. I have a problem. There are two dummy. The first one is e6_m_c1 and it's equal to 1 if firms have financial constraints and zero otherwise. The second one is e6_m_c7 and it's equal to 1 if firms don't have factors preventing growth and zero otherwise. So, I have to replace missing values of e6_m_c1 with the values of e6_m_c7. The command that I use is: replace e6_m_c1=0 if e6_m_c7==1 & missing (e6_m_c1), but there aren't changes in observations. How can I resolve?