% Generated by roxygen2: do not edit by hand
% Please edit documentation in R/safeguard_reform.R
\name{cer_safeguard_baseline_trajectory}
\alias{cer_safeguard_baseline_trajectory}
\title{Compute a declining Safeguard baseline trajectory}
\usage{
cer_safeguard_baseline_trajectory(industry, from_year = 2023, to_year = 2030)
}
\arguments{
\item{industry}{Character scalar matching an \code{industry} value
from \code{\link[=cer_safeguard_industry_baselines]{cer_safeguard_industry_baselines()}}.}

\item{from_year}{Start year (default 2023 for FY 2023-24).}

\item{to_year}{End year (default 2029 for FY 2029-30).}
}
\value{
A data frame with \code{year}, \code{financial_year}, \code{baseline},
and \code{decline_factor} columns.
}
\description{
Implements the 4.9\% per-annum nominal decline in industry-average
default baselines introduced by the 2023 reform. The formula is:
}
\details{
\deqn{B_t = B_{2023\text{-}24} \times (1 - 0.049)^{t - 2023}}

where \code{t} is the starting calendar year of the financial year.
Default values are drawn from
\code{inst/extdata/safeguard_industry_baselines.csv}.
}
\examples{
cer_safeguard_baseline_trajectory("Aluminium smelting")
cer_safeguard_baseline_trajectory("Cement clinker",
                                   from_year = 2023, to_year = 2030)
}
\references{
Commonwealth of Australia (2023). \emph{Safeguard Mechanism
(Crediting) Amendment Act 2023}. Introduces 4.9\% p.a. nominal
baseline decline to 2030.

Clean Energy Regulator (annual). \emph{Safeguard Mechanism:
declining baselines}. Methodology notes accompanying annual
baseline determinations.
}
\seealso{
Other safeguard: 
\code{\link{cer_safeguard_facilities}()},
\code{\link{cer_safeguard_industry_baselines}()},
\code{\link{cer_safeguard_teba_facilities}()}
}
\concept{safeguard}
