This function is in fact a wrapper around the equation_solve
function,
adding a key column with the name to the multiplier the maintain structural
consistency.
multiplier_create( input_vector, Im, multiplier_name = "multiplier", digits = NULL )
input_vector  An input matrix or vector created by the


Im  The Leontieff inverse as a named object created by the

multiplier_name  A variable name to be given to the returned multipliers.
Defaults to 
digits  Rounding digits, if omitted, no rounding takes place. 
A data frame with the vector of multipliers and the an auxiliary metadata column (for joining with other matrixes.)
As opposed to direct effects, multipliers are expressed per input of product/industry.
Other multiplier functions:
input_multipliers_create()
data_table < iotable_get() coeff_de < input_coefficient_matrix_create( data_table ) de_gva_indicator < input_indicator_create ( data_table = data_table, input = 'gva') #this is a correct input I_de < leontieff_inverse_create( coeff_de ) de_gva_multipliers < multiplier_create ( input_vector = de_gva_indicator, Im = I_de, multiplier_name = "employment_multiplier", digits = 4 )