Economic System Justification — Cross-Year Comparison

A Politico-Psychological Analysis Across Waves

Report generated

March 23, 2026

1 Items: Economic System Justification

Items confirmed as identical across all included waves (2016, 2018, 2020).

2 Study Overview

Sample sizes and descriptive statistics for Economic System Justification by year
year N N (valid facet) Mean SD
2016 1500 1500 4.83 1.04
2018 2759 2759 4.70 1.08
2020 2000 2000 4.70 1.06

2.0.1 2016 Sample

2.0.2 Sample

N=1500

To conduct a exploratory and a confirmatory large surveys during the general election, we hired a professional survey firm (SSI, a US-based market research company that recruits participants from a panel of 7,139,027 American citizens; more information can be found at www.surveysampling.com (now https://www.dynata.com/) to recruit a nationally representative sample of 1,500 Americans (50.7% women) who completed study materials during the general election from August 16-September 9, 2016. (Information about sampling and exclusion criteria is included in the Supplement). The age distribution was as follows: 18-24 (12.9%), 25-34 (17.6%), 35-44 (17.5%), 45-54 (19.5%), 55-65 (15.6%) and older than 65 (16.9%). The ethnic breakdown was: White/European American (82.5%), Black/African American (7.7%), Latino (5.9%) and “Other” (4.0%). Concerning religion, 67.6% identified as Christian, 17.1% as religiously affiliated but not Christian, and 15.3% as Atheist/Agnostic. With respect to education 35.1% indicated “high school only or lower,” 31.4 % indicated “some college,” and 33.6% indicated having received a “Bachelor” or “Graduate” degree. 2424 participants were directed to the survey, 1885 of which finished the survey (attrition rate 22%).

We followed recommendations to minimize the problem of careless responding in online studies. Specifically, we employed 10 random attention questions and time controls to check for data quality. There were 385 participants who failed more than one attention check or finished the survey in under ~22 minutes and were therefore excluded from the sample. For the 1500 participants who successfully finished the survey, completion time was 67 minutes on average (MD: 51min).

2.0.3 2018 Sample

2.0.4 Sample

N=TBD

Sample description for the 2018 PPBS CINT Post-election study to be added.

2.0.5 2020 Sample

2.0.6 Sample

N=TBD

Sample description for the 2020 PPBS CINT study to be added.

3 Descriptives

Descriptive statistics for Economic System Justification by year
year N Mean SD Median Min Max Skewness Kurtosis
2016 1500 4.83 1.04 4.94 1.00 8.47 -0.52 0.91
2018 2759 4.70 1.08 4.88 1.00 8.29 -0.56 0.57
2020 2000 4.70 1.06 4.88 1.06 8.47 -0.63 1.12

4 Demographics

4.1 Sex

4.1.1 Pooled Model with Year Interaction

Economic System Justification ~ Sex * Year
  Economic System Justification
Predictors Estimates CI p
(Intercept) 4.61 4.53 – 4.68 <.001
Sex [Male] 0.45 0.34 – 0.56 <.001
year [2018] 0.02 -0.07 – 0.11 .696
year [2020] 0.04 -0.06 – 0.14 .414
Sex [Male] × year [2018] -0.30 -0.44 – -0.17 <.001
Sex [Male] × year [2020] -0.34 -0.48 – -0.19 <.001
Observations 6259
R2 / R2 adjusted .017 / .016

4.1.2 Raincloud by Year

4.2 Age

4.2.1 Pooled Model with Year Interaction

Economic System Justification ~ Age * Year
  Economic System Justification
Predictors Estimates CI p
(Intercept) 4.73 4.58 – 4.88 <.001
Age25-34 years -0.24 -0.43 – -0.04 .016
Age35-44 years 0.04 -0.16 – 0.23 .697
Age45-54 years 0.04 -0.15 – 0.24 .645
Age55-64 years 0.13 -0.07 – 0.33 .212
Age [65+] 0.61 0.42 – 0.81 <.001
Age [65+ years] 0.34 0.17 – 0.51 <.001
year [2018] -0.22 -0.41 – -0.03 .022
year [2020] -0.28 -0.48 – -0.08 .006
Age25-34 years:year2018 0.27 0.02 – 0.52 .031
Age35-44 years:year2018 0.12 -0.13 – 0.37 .356
Age45-54 years:year2018 0.18 -0.07 – 0.42 .154
Age55-64 years:year2018 0.12 -0.14 – 0.37 .366
Age [65+ years] × year
[2018]
0.04 -0.19 – 0.26 .751
Age25-34 years:year2020 0.32 0.06 – 0.58 .015
Age35-44 years:year2020 0.25 -0.01 – 0.52 .058
Age45-54 years:year2020 0.23 -0.03 – 0.49 .088
Age55-64 years:year2020 0.33 0.06 – 0.60 .015
Observations 6259
R2 / R2 adjusted .029 / .027

4.2.2 Raincloud by Year

4.3 Income

4.3.1 Pooled Model with Year Interaction

Economic System Justification ~ Income * Year
  Economic System Justification
Predictors Estimates CI p
(Intercept) 4.59 4.44 – 4.75 <.001
Income [$15,000-$24,999] 0.08 -0.14 – 0.30 .487
Income [$25,000-$34,999] 0.15 -0.07 – 0.37 .183
Income [$35,000-$49,999] 0.12 -0.09 – 0.33 .260
Income [$50,000-$74,999] 0.26 0.06 – 0.46 .009
Income [$75,000-$99,999] 0.35 0.13 – 0.56 .002
Income
[$100,000-$149,999]
0.55 0.32 – 0.77 <.001
Income [$150,000 +] 0.60 0.33 – 0.86 <.001
year [2018] -0.08 -0.28 – 0.11 .419
year [2020] 0.11 -0.10 – 0.32 .293
Income [$15,000-$24,999]
× year [2018]
-0.05 -0.33 – 0.23 .723
Income [$25,000-$34,999]
× year [2018]
-0.10 -0.38 – 0.19 .504
Income [$35,000-$49,999]
× year [2018]
0.10 -0.16 – 0.36 .458
Income [$50,000-$74,999]
× year [2018]
0.07 -0.18 – 0.32 .578
Income [$75,000-$99,999]
× year [2018]
-0.12 -0.39 – 0.15 .387
Income
[$100,000-$149,999] ×
year [2018]
-0.40 -0.67 – -0.12 .005
Income [$150,000 +] ×
year [2018]
-0.24 -0.55 – 0.07 .126
Income [$15,000-$24,999]
× year [2020]
-0.07 -0.37 – 0.22 .625
Income [$25,000-$34,999]
× year [2020]
-0.21 -0.51 – 0.10 .181
Income [$35,000-$49,999]
× year [2020]
-0.20 -0.48 – 0.08 .168
Income [$50,000-$74,999]
× year [2020]
-0.31 -0.57 – -0.05 .022
Income [$75,000-$99,999]
× year [2020]
-0.27 -0.56 – 0.02 .066
Income
[$100,000-$149,999] ×
year [2020]
-0.51 -0.80 – -0.22 .001
Income [$150,000 +] ×
year [2020]
-0.53 -0.86 – -0.21 .001
Observations 6259
R2 / R2 adjusted .017 / .013

4.4 Ethnicity

4.4.1 Pooled Model with Year Interaction

Economic System Justification ~ Ethnicity * Year
  Economic System Justification
Predictors Estimates CI p
(Intercept) 4.89 4.83 – 4.95 <.001
Ethnicity [Black/African
American]
-0.57 -0.77 – -0.37 <.001
Ethnicity [Latino] -0.27 -0.50 – -0.04 .019
Ethnicity [Asian/Pacific
Islander]
0.24 -0.15 – 0.62 .232
Ethnicity [Native
American]
-0.30 -0.87 – 0.28 .312
Ethnicity [Other] -0.26 -0.75 – 0.23 .301
Ethnicity [White] -0.19 -0.82 – 0.45 .563
Ethnicity
[Hispanic/Latino]
-0.53 -1.19 – 0.14 .123
Ethnicity [Middle
Eastern]
-0.43 -1.52 – 0.66 .435
Ethnicity [Middle
Eastern]
0.35 -1.24 – 1.94 .664
year [2018] 0.14 -0.55 – 0.83 .685
year [2020] 0.08 -0.55 – 0.71 .799
Ethnicity [Black/African
American] × year [2018]
-0.00 -0.72 – 0.72 .994
Ethnicity [Asian/Pacific
Islander] × year [2018]
-0.54 -1.35 – 0.28 .198
Ethnicity [Native
American] × year [2018]
0.07 -0.98 – 1.12 .900
Ethnicity [Other] × year
[2018]
-0.86 -1.46 – -0.26 .005
Ethnicity [White] × year
[2018]
-0.06 -0.35 – 0.23 .691
Ethnicity [Black/African
American] × year [2020]
-0.05 -0.72 – 0.62 .890
Ethnicity [Asian/Pacific
Islander] × year [2020]
-0.56 -1.33 – 0.20 .150
Ethnicity [Native
American] × year [2020]
-0.57 -1.59 – 0.46 .279
Observations 6259
R2 / R2 adjusted .026 / .023

4.5 Area

4.5.1 Pooled Model with Year Interaction

Economic System Justification ~ Area * Year
  Economic System Justification
Predictors Estimates CI p
(Intercept) 4.74 4.67 – 4.81 <.001
Area [Rural] 0.25 0.14 – 0.36 <.001
Area [Suburban] 0.19 0.08 – 0.30 .001
year [2018] -0.22 -0.32 – -0.11 <.001
year [2020] -0.19 -0.30 – -0.08 .001
Area [Rural] × year
[2018]
0.02 -0.14 – 0.18 .830
Area [Suburban] × year
[2018]
0.04 -0.11 – 0.18 .620
Area [Rural] × year
[2020]
0.05 -0.13 – 0.22 .598
Observations 6259
R2 / R2 adjusted .013 / .012

5 Political Orientation

5.1 Fixed-Effects Regression: Ideology ~ Construct * Year

5.1.1 Regression Table

  Economic System Justification → Ideology (Pooled) Economic System Justification → Ideology (2016) Economic System Justification → Ideology (2018) Economic System Justification → Ideology (2020)
Predictors Estimates CI p Estimates CI p Estimates CI p Estimates CI p
(Intercept) -2.22 -7.92 – 3.48 .445 -0.48 -1.08 – 0.13 .122 -18.93 -24.48 – -13.39 <.001 -24.53 -30.73 – -18.33 <.001
facet 1.10 -0.01 – 2.20 .052 1.19 1.08 – 1.29 <.001 14.01 13.12 – 14.90 <.001 15.49 14.43 – 16.54 <.001
year [2018] -15.83 -22.34 – -9.32 <.001
year [2020] -22.36 -29.34 – -15.38 <.001
Age25-34 years 2.62 0.53 – 4.70 .014 0.15 -0.23 – 0.54 .437 1.39 -2.29 – 5.06 .460 6.09 1.90 – 10.29 .004
Age35-44 years 3.35 1.21 – 5.48 .002 0.24 -0.15 – 0.64 .227 3.96 0.20 – 7.72 .039 4.52 0.24 – 8.80 .038
Age45-54 years 7.14 5.03 – 9.24 <.001 0.54 0.16 – 0.93 .006 8.52 4.79 – 12.25 <.001 10.69 6.42 – 14.95 <.001
Age55-64 years 6.89 4.75 – 9.04 <.001 0.69 0.28 – 1.10 .001 8.85 5.11 – 12.60 <.001 8.78 4.47 – 13.08 <.001
Age [65+] 5.13 1.72 – 8.54 .003 1.14 0.74 – 1.54 <.001
Age [65+ years] 6.36 4.15 – 8.56 <.001 6.51 2.89 – 10.13 <.001 9.42 5.28 – 13.56 <.001
Inc 0.09 -0.19 – 0.37 .511 0.01 -0.05 – 0.07 .847 0.67 0.20 – 1.14 .005 -0.57 -1.13 – -0.01 .046
Edu -0.83 -1.46 – -0.20 .010 -0.15 -0.26 – -0.04 .009 -1.32 -2.36 – -0.28 .013 -0.46 -1.95 – 1.03 .543
facet × year [2018] 13.10 11.76 – 14.45 <.001
facet × year [2020] 14.38 12.95 – 15.82 <.001
Observations 6259 1500 2759 2000
R2 / R2 adjusted .550 / .549 .307 / .303 .289 / .287 .314 / .312

5.1.2 Scatter Plots by Year

5.1.3 Forest Plot: Meta-Analytic Pooling

5.2 Social Ideology

  Social Ideology (Pooled) Social Ideology (2016) Social Ideology (2018) Social Ideology (2020)
Predictors Estimates CI p Estimates CI p Estimates CI p Estimates CI p
(Intercept) -1.14 -6.95 – 4.66 .699 -1.14 -1.73 – -0.56 <.001 -21.01 -25.65 – -16.36 <.001 -24.75 -30.20 – -19.30 <.001
facet 1.26 0.08 – 2.43 .036 1.26 1.14 – 1.38 <.001 14.93 13.97 – 15.89 <.001 15.90 14.77 – 17.03 <.001
year [2018] -19.86 -26.92 – -12.80 <.001
year [2020] -23.61 -31.14 – -16.07 <.001
facet × year [2018] 13.67 12.23 – 15.11 <.001
facet × year [2020] 14.64 13.10 – 16.19 <.001
Observations 6259 1500 2759 2000
R2 / R2 adjusted .494 / .494 .224 / .224 .251 / .251 .276 / .276

5.3 Economic Ideology

  Economic Ideology (Pooled) Economic Ideology (2016) Economic Ideology (2018) Economic Ideology (2020)
Predictors Estimates CI p Estimates CI p Estimates CI p Estimates CI p
(Intercept) -1.46 -6.90 – 3.98 .598 -1.46 -1.98 – -0.94 <.001 -17.71 -22.04 – -13.39 <.001 -25.48 -30.63 – -20.33 <.001
facet 1.44 0.34 – 2.54 .011 1.44 1.33 – 1.54 <.001 15.28 14.38 – 16.17 <.001 16.98 15.91 – 18.05 <.001
year [2018] -16.25 -22.87 – -9.63 <.001
year [2020] -24.02 -31.08 – -16.96 <.001
facet × year [2018] 13.84 12.49 – 15.19 <.001
facet × year [2020] 15.54 14.10 – 16.99 <.001
Observations 6259 1500 2759 2000
R2 / R2 adjusted .563 / .562 .322 / .322 .288 / .288 .327 / .327

6 Party Identity Analyses

6.1 Party Identity (7-Point ANES) by Year

6.2 Party Identity Raincloud

6.3 Party Identity Regression with Year Interaction

  Party ID (Pooled) Party ID (2016) Party ID (2018) Party ID (2020)
Predictors Estimates CI p Estimates CI p Estimates CI p Estimates CI p
(Intercept) 0.38 0.28 – 0.49 <.001 0.38 0.28 – 0.49 <.001 0.40 0.33 – 0.48 <.001 0.43 0.34 – 0.52 <.001
facet 0.23 0.21 – 0.25 <.001 0.23 0.21 – 0.25 <.001 0.22 0.20 – 0.23 <.001 0.22 0.20 – 0.24 <.001
year [2018] 0.02 -0.11 – 0.15 .760
year [2020] 0.05 -0.09 – 0.18 .502
facet × year [2018] -0.01 -0.04 – 0.01 .372
facet × year [2020] -0.01 -0.04 – 0.02 .467
Observations 6259 1500 2759 2000
R2 / R2 adjusted .228 / .228 .231 / .230 .228 / .228 .220 / .220

6.4 Forest Plot: Party ID Regression

7 Correlation Comparison

7.1 Cleveland Dot Plot: Correlations by Year

7.2 Forest Plots: Key Correlations

7.2.1 Social Dominance Orientation

7.2.2 Ideological Self-placement [Economic]

7.2.3 Ideological Self-placement [Left-Right]

7.2.4 Right Wing Authoritarianism

7.2.5 Ideological Self-placement [Social]

7.2.6 Party ID [G.O.P.]

7.3 Correlation Table by Year

Spearman correlations with Economic System Justification by year
label 2016 2018 2020
Age 0.215 0.119 0.127
Anti-Pluralism [Populist Attitudes] 0.306 0.271 0.252
Blind Patriotism -0.266 0.439 0.427
Education 0.095 -0.072 0.016
General System Justification 0.335 0.491 0.623
Ideological Self-placement [Economic] 0.562 0.534 0.568
Ideological Self-placement [Left-Right] 0.520 0.527 0.555
Ideological Self-placement [Social] 0.474 0.495 0.525
Income 0.187 0.081 0.045
Male 0.234 0.086 0.065
Party ID [G.O.P.] 0.497 0.501 0.490
Religiosity 0.192 0.225 0.277
Right Wing Authoritarianism 0.430 0.537 0.565
Rural Area 0.116 0.100 0.105
Social Dominance Orientation 0.568 0.631 0.611
Support for Black Lives Matter -0.469 -0.472 -0.539
Support for Blue Lives Matter 0.175 0.219 0.350
Support for Civil Rights -0.382 -0.369 -0.433
Support for Environmentalism -0.401 -0.482 -0.455
Support for Feminism -0.411 -0.435 -0.435
Support for LGBTQ+ -0.448 -0.455 -0.474