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LRfunction

Calculate the Link Ratio Function

Description

This calculates the link ratio function per the CLFM paper.

Usage

LRfunction(x, y, delta)

Arguments

x

beginning value of loss during a development period
y

ending value of loss during a development period
delta

numeric

Details

Calculated the link ratios resulting from a chainladder model over a development period indexed by (possibly vector valued) real number delta. See formula (5) in the References.

Value

A vector of link ratios.

Author(s)

Dan Murphy

References

Bardis, Majidi, Murphy. A Family of Chain-Ladder Factor Models for Selected Link Ratios. Variance. Pending. 2013. pp.tbd:tbd

Examples

x <- RAA[1:9,1]
y <- RAA[1:9,2]
delta <- seq(-2, 2, by = .1)
plot(delta, LRfunction(x, y, delta), type = "l")
ChainLadder

Statistical Methods and Models for Claims Reserving in General Insurance

v0.2.12
GPL (>= 2)
Authors
Markus Gesmann [aut, cre], Daniel Murphy [aut], Yanwei (Wayne) Zhang [aut], Alessandro Carrato [aut], Giuseppe Crupi [ctb], Christophe Dutang [ctb], Arnaud Lacoume [ctb], Arthur Charpentier [ctb], Mario Wuthrich [aut], Fabio Concina [aut], Eric Dal Moro [aut], Yuriy Krvavych [ctb], Vincent Goulet [ctb], Marco De Virgilis [ctb]
Initial release
2021-01-05

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