To cite package ‘erer’ in publications use:

  Sun C (2024). _erer: Empirical Research in Economics with R_. R
  package version 4.0, <https://CRAN.R-project.org/package=erer>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {erer: Empirical Research in Economics with R},
    author = {Changyou Sun},
    year = {2024},
    note = {R package version 4.0},
    url = {https://CRAN.R-project.org/package=erer},
  }