concstats_palma: Palma ratio
In concstats: Market Structure, Concentration and Inequality Measures

concstats_palma

R Documentation

Palma ratio

Description

Palma ratio

Usage

concstats_palma(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 `NA` values are present.

Details

concstats_palma measures the ratio of inequality (normally used with income inequality) of the top 10 percent to the bottom 40 percent.

Value

A single numeric measure.

References

Palma, J. G. (2006). "Globalizing Inequality: 'Centrifugal' and 'Centripetal' Forces at Work", DESA Working Paper No. 35.

Examples

# a vector of market shares
x <- c(0.4, 0.2, 0.25, 0.1, 0.05)
concstats_palma(x)
# a vector with NA values
x <- c(0.4, 0.2, 0.25, 0.1, 0.05, NA)
concstats_palma(x, na.rm = FALSE)

concstats documentation built on March 31, 2023, 10:26 p.m.