Pablo Nájera [aut, cre, cph],
  Miguel A. Sorrel [aut, cph],
  Francisco J. Abad [aut, cph],
  Rodrigo S. Kreitchmann [ctb],
  Kevin Santos [ctb]

Norm Matloff <normmatloff@gmail.com> and 
    Vincent Yang <vinyang@ucdavis.edu> and Harrison Nguyen <hhnguy@ucdavis.edu>

Alessia Calafiore [aut, cre] (<https://orcid.org/0000-0002-5953-2891>)

Zivan Karaman [aut, cre, cph] (<https://orcid.org/0000-0002-8933-4589>)

Dr. S. Vishnu Shankar [aut, cre],
  Dr. Ranjit Kumar Paul [aut],
  Dr. Md Yeasin [aut],
  Dr. Himadri Shekhar Roy [aut]

Kamieniecki Konrad [aut],
  Spurek Przemyslaw [ctb],
  Simon Garnier [cre, ctb] (<https://orcid.org/0000-0002-3886-3974>)

Lianbo Yu [aut, cre],
  Yue Zhao [aut],
  Kevin R. Coombes [aut],
  Lang Li [aut]

Mr. Sandip Garai [aut, cre],
  Dr. Ranjit Kumar Paul [aut],
  Dr. Md Yeasin [aut]

Rodrigo Collazo [aut],
  Pier Taranti [aut, cre]

Jennifer Bryan [cre, aut],
  Hadley Wickham [ctb]

Johannes Textor [aut, cre],
  Katharina Dannenberg [aut],
  Jeffrey Berry [aut],
  Gerhard Burger [aut],
  Annie Liu [aut],
  Mark Miller [aut],
  Inge Wortel [aut]

Katharine M. Mullen, Michael Halter, John Lu and Nathan Dodder

Jakob Raymaekers [aut, cre],
  Peter Rousseeuw [aut],
  Wannes Van den Bossche [ctb],
  Mia Hubert [ctb]

Stefano M. Iacus [aut, cre],
  Gary King [aut],
  Giuseppe Porro [aut],
  Richard Nielsen [aut]

Carlos Relvas [aut],
  Andre Fujita [aut, cre]

Zhihua Sun [aut, cre],
  Chunyu Yu [aut],
  Gang Li [aut],
  Kani Chen [ctb],
  Yi Liu [ctb]

Mingyang Ren [aut, cre] (<https://orcid.org/0000-0002-8061-9940>),
  Sanguo Zhang [aut],
  Junhui Wang [aut]

Kassu Mehari Beyene [aut, cre],
  Anouar El Ghouch [aut, ths]

Mauricio Vargas [aut, cre] (<https://orcid.org/0000-0003-1017-7574>),
  Juan Correa [ctb],
  Maria Paula Caldas [rev] (rOpenSci),
  Frans van Dunee [rev] (rOpenSci),
  Melina Vidoni [rev] (rOpenSci),
  Constanza Manriquez [rev] (revision independiente de las vinietas),
  Instituto Nacional de Estadisticas (INE) [dtc]

Rafael H. M. Pereira [aut, cre]
    (<https://orcid.org/0000-0003-2125-7465>),
  Rogério J. Barbosa [aut] (<https://orcid.org/0000-0002-6796-4547>),
  Diego Rabatone Oliveira [ctb],
  Neal Richardson [ctb],
  Ipea - Institute for Applied Economic Research [cph, fnd]