Minimum of Herfindahl-Hirschman Index
Usage
concstats_hhi_min(x, na.rm = TRUE)
Arguments
- x
A non-negative numeric vector.
- na.rm
A logical vector that indicates whether NA values should
be excluded or not. Must be either TRUE or FALSE. The default
is TRUE.
If set to FALSE the computation yields NA if the vector
contains NA values.
Value
A single numeric measure in decimal form.
Details
Calculates the minimum of the Herfindahl-Hirschman index, that is,
the equivalent of all participants in the market with equal market shares.
Examples
# a vector of market shares
x <- c(0.35, 0.4, 0.05, 0.1, 0.06, 0.04)
concstats_hhi_min(x)
#> [1] 0.1666667
# a vector with NA values
x <- c(0.4, 0.2, 0.25, 0.1, 0.05, NA)
concstats_hhi_min(x, na.rm = FALSE)
#> [1] NA
