land_price: land_price

In pik-piam/magpie4: MAgPIE outputs R package for MAgPIE version 4.x

land_price

Description

Calculates MAgPIE MAgPIE land shadow prices based on a gdx file

Usage

land_price(
  gdx,
  file = NULL,
  level = "reg",
  ignore_lowbound = FALSE,
  absolute = TRUE,
  digits = 4
)

Arguments

gdx	GDX file
file	a file name the output should be written to using write.magpie
level	Level of regional aggregation; "reg" (regional), "glo" (global), "regglo" (regional and global) or any other aggregation level defined in superAggregate
ignore_lowbound	Some shadow prices are positive (see Details), corresponding to a lower bound for that pool. TRUE sets them to 0. Default value: FALSE.
absolute	Should the absolute value of all the marginals be taken into calculations? TRUE (default) of FALSE. See Details.
digits	rounding accuracy for the output

Details

The land price is obtained through marginals of the "oq_cropland" constraint. The majority of these marginals are negative values, and a negligible number of them are positive. This is the consequence of the constraint binding either on upper or lower level. The parameter ignore_lowbound removes all the positive marginals from land price calculation (negligible), and parameter absolute transforms them into negative values (to be all together reported as positive values at the final calculation).

Value

A MAgPIE object containing the land shadow prices (US$2017/ha).

Author(s)

Markus Bonsch, Misko Stevanovic

Examples

  ## Not run: 
    x <- land_price(level="regglo", products="kcr")
  
## End(Not run)

pik-piam/magpie4 documentation built on Dec. 20, 2024, 1:59 p.m.