What would be the best method to create a directed board
interlocks network, where the direction goes from company A to company B if
they both share a director, AND the director serves as an executive at A and a
regular member at B (according to Brennecke & Rank 2017 Tie heterogeneity
in networks of interlocking directorates: a cost¨Cbenefit approach to firms¡¯ tie
choice). I have a database with companies and assigned to them directors
together with their positions, the network would obviously be a matrix of
companyXcompany relations. Thank you in advance.