开云体育

Hi all,

I encountered a problem when running MRQAP. I try to investigate which factors influnce formal collaboration between cities(weighted and undirected). I have two independent variables: IV1-informal interaction (weighted and undirected); IV2-network of prescribed interaction (binary and unweighted), and one control variable. When I? include IV1 and the control variable, IV1 is insinificant and sign is +. However, when IV2 is included, IV1 is significant and the sign is -.? ?I guess that issue may arise due to colinearity between IV1 and IV2. Is there a solution like? the residualization strategy in OLS to sovle this problem? (maybe it sounds strange╯︿╰)