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Function to create a normalised-valued firm-firm (FF) matrix based on boards interlocks
FF.norm.management( ..., id_as_firm_name = NULL, Matrix = NULL, self_ties = FALSE )
A matrix object of class financial_matrix(possibly using the Matrix package)
financial_matrix
Matrix
Either multiple objects of class firm or a list of such objects
firm
Whether to use the ticker as the firm's name. Defaults to TRUE if all firms' id is neither NULL nor NA.
TRUE
NULL
NA
Whether to use the Matrix package. Defaults to TRUE when any matrix in the pipeline contains more than 10,000 cells and the package is installed.
Whether to allow self-ties (a 'loop' in graph theory). Defaults to FALSE.
FALSE
Telarico, Fabio Ashtar
Normalised-valued means that weights represent the share of common managers.
FF FF.binary.ownership FF.binary.management FF.naive.ownership FF.naive.management FF.norm.ownership
# Create the normalised FF matrix of Berkshire Hathaway's holdings by boards interlocks data('firms_BKB') FF <- FF.norm.management(firms_BKB)
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