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Eugen Dimant Profile picture
@eugen_dimant
May 19, 2021 • 8 tweets • 8 min read • Read on X
Scrolly
☢️New @CESifoGroup WP☢️
⦿I quantify impact of political polarization on social preferences via 15(!) incentive-compatible experiments
⦿I also test if #nudging can reduce polarization (it can't)

Paper: cesifo.org/en/publikation…
#EconTwitter

Short🧵on what's new in this version
1/7
1st of all, the paper contains many experiments and interventions. After the initial submission of this paper, reviewers asked to not only quantify the detrimental impact of polarization but also test behavioral interventions to alleviate it.

So now I have ~9,000 obs.
2/7
Quick recap: the 15 experiments capture
⦿ altruism & anti-social behavior (List 2007)
⦿ cooperativeness & trust (Fischbacher et al 2001)
⦿ norms (Krupka & Weber 2013)
⦿ behavioral interventions (defaults & norm-nudges, @shlomobenartzi @R_Thaler @CassSunstein @CBicchieri)
3/7
 ⦿This paper is the 1st to test whether nudging can reduce political polarization in the U.S. wrt altruism & cooperativeness
⦿Results suggest: polarization runs too deep & that structural - ontop of behavioral - interventions are needed @R_Thaler @CassSunstein @katy_milkman
4/7
Design: across all experiments, the experiments are quite simple. Participants are
⦿ asked about their opinion regarding Trump/Biden/sports/minimal group markers
⦿ randomly matched with another participant for whom the relevant identity is either the same or opposite
5/7
In the 1st public version of the paper, I had established that:
⦿ detrimental impact of polarization on social preferences runs deep
⦿ failure to cooperate driven by misguided beliefs about how others & not by categorical unwillingness to cooperate
@ylelkes @d_f_stone
6/7
🔥new nudging results🔥
⦿ tested 2 nudges (pro-social/cooperative by default or learning descriptive norms about previous behavior)
⦿ nudging shifts behavior upwards but is *unable* to reduce polarization gap

➡️participants still discriminate against political outgroups
7/7
Thankful for having received valuable feedback from @yanchen @BrendanNyhan @pylekeyton @c_a_gravert @Leesplez & many more (incl my @UoNCeDEx friends S. Gächter, D. Nosenzo & S. Sonderegger).

Details on the previous results are in the old tweet below

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More from @eugen_dimant

Eugen Dimant Profile picture
Nov 17, 2022
🚨New Publication🚨

𝗜𝗻𝘁𝗲𝗿𝗲𝘀𝘁𝗲𝗱 𝗶𝗻 𝘁𝗵𝗲 𝗿𝗲𝘀𝗲𝗮𝗿𝗰𝗵 𝗳𝗿𝗼𝗻𝘁𝗶𝗲𝗿 𝗼𝗳 𝘀𝗼𝗰𝗶𝗮𝗹 𝗻𝗼𝗿𝗺𝘀 & 𝗯𝗲𝗵𝗮𝘃𝗶𝗼𝗿 𝗰𝗵𝗮𝗻𝗴𝗲?

💡Yes? You're in luck: @CBicchieri @MicheleJGelfand @silviasondereg2 & I might have just the right insights to share.

A little🧵
Last year, we took on the endeavor to be co-editors on a special issue on social norms & behavior change at JEBO.

We were floored by the demand: received 120 submissions & ultimately accepted 22 papers ranging from theory & non-experimental to laboratory & extra-lab experiments
In what follows, I will briefly mention the accepted papers in order of their employed methodology.

If you'd like to get straight into the science, the four of us have compiled the most exciting insights in our editorial piece that you can download here: authors.elsevier.com/a/1g5Vbc24a-egJ
Read 26 tweets
Eugen Dimant Profile picture
Dec 9, 2021
👣First publication of 2022 is✔️

We show when & how social #norm compliance erodes over time + the role that group #identity plays in mitigating it

Paper: doi.org/10.1016/j.geb.…
Results in🧵👇
👀@jayvanbavel @CassSunstein @BrendanNyhan @eckelcc @RFisman @erezyoeli #EconTwitter
Apologies, the DOI link seems not to be active just yet

Link that works: sciencedirect.com/science/articl…

A few interdisciplinary scholars who work on topics related to social norms & identity:
@_alice_evans @page_eco @RobbWiller @MicheleJGelfand @m_serra_garcia @silvia_saccardo @katy_milkman @angeladuckw @DinaPomeranz @ValerioCapraro @JohnHolbein1 @ylelkes @NeelaSaldanha @seema_econ
Read 4 tweets
Eugen Dimant Profile picture
Sep 8, 2021
💡New paper (with the fantastic @BellaRen19 & @ME_Schweitzer @Wharton) examining the role of social motives in spreading misinformation/conspiracy theories.

Paper: tinyurl.com/4mch6mk9

Short🧵with results
#EconTwitter @DG_Rand @Sander_vdLinden @GordPennycook @jayvanbavel
1/n
2/N
Great research analyzing the dissimination of misinformation & what to do about it has been produced by @DG_Rand @Sander_vdLinden @GordPennycook @jayvanbavel... et al. (& their teams)

They show how pervasive misinfo spread is & how people reason at the individual level.
3/N
Here, we are interested in the *collective* dimension of misinfo spread. We focus on social motives (e.g., feeling of belongingness, norms etc.) as a motivating mechanism to spread conspiracy theories (CT).

Understanding these social dynamics is important. And challenging.
Read 9 tweets
Eugen Dimant Profile picture
Sep 4, 2020
💥New WP: Hate Trumps Love💥
RQ: study behavioral-, belief- & norm-based mechanisms through which perceptions of closeness, altruism & cooperativeness are affected by political polarization under @realDonaldTrump

Findings: it’s grim
Paper: bit.ly/32TNKrk

Short thread👇 Image
1/11

Rising political polarization is often linked to fractured societies rife with racial inequality, factional conflict & partisan animosity.

In the U.S., many issues yield a surprising partisan divide, think mask wearing (see also recent paper by @spbhanot & @dhopkins1776)
2/11

In multiple pre-registered *behavioral* experiments, I study the perceptional & behavioral consequences of polarization.

In particular, I examine the behavioral-, belief-, and norm-based mechanisms with which this political intergroup conflict materializes.
Read 13 tweets
Eugen Dimant Profile picture
Feb 5, 2019
🚨New WP (theory + experiment): lying & belief distortion under norm-uncertainty🚨
w/ @cbicchieri (@Penn) & Sonderegger (@CeDEx)

RQ: how do we engage in deviant behavior when social #norms are uncertain?
A: self-serving belief distortion
Paper: bit.ly/2Go0tJk

Thread ⬇
1/
Known:
◈ #Lies are ubiquitous & people often lie for their own benefit or for others (@UriGneezy et al., 2018 AER, Abeler et al., 2019 Ecta)
◈ Reasons (not) to lie: ethical dissonance, image concerns...

--> we take a complementary approach: norm-following considerations
2/
Existing scientific approach to the study of norms:
◈ Clearly define norms and study how individuals react (tradition of @RobertCialdini, @CBicchieri, Fehr & others)
◈ Find: social norms motivate and affect personal decisions, even when they are not in our own self-interest
Read 11 tweets
Eugen Dimant Profile picture
Dec 13, 2018
🚨WP on deterrence & optimal design of institutions🚨
(w/ colleagues @econ_uzh @UniCologne @kielinstitute)

RQ: How to design institutions effective at deterring deviant behavior & recidivism?
A: Proper use of swiftness & uncertainty

Paper: bit.ly/2SJ9D63

Thread 1/n
Governments use substantial resources to keep society safe and punish people for criminal acts. Mass incarceration is both costly and ineffective.

Understanding how to design proper institutions is important from both the social and economic perspective.
A vast literature on criminal deterrence has focused on the relevance of the certainty and severity of punishment in deterring deviant behavior (following the Becker tradition).

We examine a third and understudied element (see HOPE program): celerity (swiftness of punishment)
Read 12 tweets

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