English Name
Time
Details from Source
PiS
Manifesto Project
ParlGov
Wikipedia
CHES
CLEA
EJPR PDY
V-Party
Wikipedia tags
CHISOLS
DPI
ESS prtc*
ESS prtv*
Kitschelt (2013)
PolCon
LaJu
PPMD (2006)
WhoGov
PIS
World Values Survey
NA
CCDD 2018
CSES-IMD
Elections Global
EPAC (2018)
ERDDA (2013)
euandi (GPS)
EU-NED
Global Elections DB
KWLaanJu
GPD
LaanJu
GPS 2019
Jennings / Wlezien
KUREP (2012)
Leaders Global
MAPP
PAGED
PIP
Poll of Polls
POPPA
PPDB (2017)
PPMD (all)
TAESD
TAP
The PopuList
PPEPE (2021)
Schlager / Weisblatt
EJS 2010
PS
added: March 8, 2016, 10:59 p.m. — updated: March 12, 2021, 11:16 a.m.