wINEQ (version 1.2.1)

Prop20_20: Proportion 20:20

Description

20:20 ratio - originally the ratio of the total income of the 20% richest people to the 20% poorest people.

Usage

Prop20_20(X, W = rep(1, length(X)))

Value

The value of 20:20 ratio coefficient.

Arguments

X

is a data vector (numeric or ordered factor)

W

is a vector of weights

Details

20:20 ratio is calculated as follows: $$Prop =\frac{H}{L}$$ where \(H\) is share of 20% of the highest values, \(L\) is share of 20% of the lowest values.

References

Panel Data Econometrics: Theoretical Contributions And Empirical Applications edited by Badi Hani Baltag

Notes on Statistical Sources and Methods - The Equality Trust.

Examples

# Compare weighted and unweighted result
X=1:10
W=1:10
Prop20_20(X)
Prop20_20(X,W)

data(Tourism)
#Prop20_20 proportion for Total expenditure with sample weights
X=Tourism$Total_expenditure
W=Tourism$Sample_weight
Prop20_20(X,W)