FinNet (version 0.1.2)

FF.binary.both: Create a complete binary firm-firm (FF) matrix

Description

Function to create a binary firm-firm (FF) matrix based on both common ownership and board interlocks

Usage

FF.binary.both(
  ...,
  id_as_firm_name = NULL,
  Matrix = NULL,
  self_ties = FALSE,
  combining = "sum"
)

Value

A matrix object of class financial_matrix(possibly using the Matrix package)

Arguments

...

Either multiple objects of class firm or a list of such objects

id_as_firm_name

Whether to use the ticker as the firm's name. Defaults to TRUE if all firms' id is neither NULL nor NA.

Matrix

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.

self_ties

Whether to allow self-ties (a 'loop' in graph theory). Defaults to FALSE.

combining

How to combine the FF matrix for managers and that for owners. Possible values:

• sum;

• mean or average;

• min;

• max;

Author

Telarico, Fabio Ashtar

Details

The ties' value will be: \(1\) if there is at least one common manager or owner, \(0\) otherwise.

See Also

FF FF.naive.both FF.norm.both

Examples

# Create the complete binary firm-firm matrix for the companies held by Berkshire Hathaway
data('firms_BKB')
FF <- FF.binary.both(firms_BKB)