English Name
Time
Details from Source
NDP
Manifesto Project
ParlGov
CCFNDP
Wikipedia
NDPEnglish
CLEA
NeDePa
EJPR PDY
ND
V-Party
Wikipedia tags
DPI
Huber / Inglehart (1995)
Kitschelt (2013)
PolCon
NaDe
PPMD (2006)
WhoGov
World Values Survey
CCS
CSES-IMD
Elections Global
Global Elections DB
GPS 2019
IPOD
Jennings / Wlezien
Laver / Hunt
MAPP
PIP
PPDB (2017)
Schlager / Weisblatt
added: March 7, 2020, 9:06 p.m. — updated: March 12, 2021, 8:10 p.m.