A set of Market Structure, Concentration, and Inequality MeasuresSource:
A convenience function which calculates a selected set of different market structure, inequality and concentration measures more or less commonly used, e.g. k-firm ratios, Entropy, HHI, Palma ratio, and others in a one step procedure to provide a first overview.
A non-negative numeric vector.
A logical vector that indicates whether
NAvalues should be excluded or not. Must be either
FALSE. Defaults to
TRUE. If set to
FALSEthe computation yields
NAif vector contains
A non-null value for digits specifies the minimum number of significant digits to be printed in values. The default is
NULLand will use base R print option. Significant digits defaults to 7.
concstats_concstats computes a set of different and selected
structural, inequality, and concentration measures in a one step procedure.
data frame contains eight measures: number of firms with
market share, numbers equivalent, the cumulative share of the top
(top 3 and top 5) firm(s) in percentage, the hhi index, the entropy index,
and the palma ratio. However, all measures can be computed individually or
The vector of market shares should be in a decimal form corresponding to the total share of individual firms/units. The vector should sum up to 1.
# a vector of market shares x <- c(0.35, 0.4, 0.05, 0.1, 0.06, 0.04) # a selected set of different structural, concentration, and inequality # measures concstats_concstats(x, digits = 2) #> Measure Value #> 1 Firms 6.00 #> 2 Nrs_equivalent 3.33 #> 3 Top (%) 40.00 #> 4 Top3 (%) 85.00 #> 5 Top5 (%) 96.00 #> 6 HHI 0.30 #> 7 Entropy 0.79 #> 8 Palma ratio 2.67