price_reduction: Price reduction function

In landsepi: Landscape Epidemiology and Evolution

Price reduction function

Description

Give the price reduction rate associated with the infection on the (grapevine) fruits

Usage

price_reduction(
  I_host,
  N_host,
  Nhost,
  Nyears,
  nTSpY,
  severity_thresh = 0.075,
  price_penalty = 0.3
)

Arguments

I_host	number of infected individuals for each cultivar and timestep
N_host	total number of individuals for each cultivar and timestep
Nhost	total number of cultivars considered in the simulation
Nyears	number of simulated cropping seasons
nTSpY	number of timesteps (e.g. days) per cropping season
severity_thresh	disease severity threshold above which the price reduction is applied
price_penalty	percentage of price reduction

Value

A matrix with the price reduction rate per cultivar and per year of simulation

References

Savary, S., Delbac, L., Rochas, A., Taisant, G., & Willocquet, L. (2009). Analysis of nonlinear relationships in dual epidemics, and its application to the management of grapevine downy and powdery mildews. Phytopathology, 99(8), 930-942.

landsepi documentation built on July 26, 2023, 5:36 p.m.