deflate_welfare_mean: Deflate welfare mean

In PIP-Technical-Team/wbpip: What the Package Does (One Line, Title Case)

Deflate welfare mean

Description

Adjust the welfare mean of a survey to constant PPP-adjusted dollars to make surveys comparable over time and across countries.

Usage

deflate_welfare_mean(welfare_mean, ppp, cpi)

Arguments

welfare_mean	numeric: The weighted welfare mean from a survey.
ppp	numeric: PPP value
cpi	numeric: CPI value.

Details

Note that the CPI value to be used must be pre-adjusted so that welfare aggregates are comparable across surveys within a given country. This implies that adjustments to account for temporal and spatial factors within the survey as well as currency changes between surveys must already have been made.

Value

numeric

References

Azevedo, J. P., P. A. Corral, D. Jolliffe, C. Lakner, D. G. Mahler, J. Montes, M. C. Nguyen, E. B. Prydz. 2018. "Prices used in Global Poverty Measurement". Global Poverty Monitoring Technical Note 3. World Bank, Washington, DC.

Examples

# Simple examples
deflate_welfare_mean(100, ppp = 5, cpi = 1.5)
deflate_welfare_mean(10.3, ppp = 1.2, cpi = 0.1)

# Works on vectors as well
deflate_welfare_mean(c(100, 10.3), ppp = c(5, 1.2), cpi = c(1.5, 0.1))#'

PIP-Technical-Team/wbpip documentation built on Nov. 29, 2024, 6:57 a.m.