Replication Data for: “Effectiveness of Social Norm-Based Nudge Interventions on Food Waste Reduction: Evidence from a Field Experiment in a Chinese University Dining Facility” (Manuscript under review) (doi:10.7910/DVN/VOPUA0)

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Part 1: Document Description
Part 2: Study Description
Part 3: Data Files Description
Part 4: Variable Description
Part 5: Other Study-Related Materials
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Document Description

Citation

Title:

Replication Data for: “Effectiveness of Social Norm-Based Nudge Interventions on Food Waste Reduction: Evidence from a Field Experiment in a Chinese University Dining Facility” (Manuscript under review)

Identification Number:

doi:10.7910/DVN/VOPUA0

Distributor:

Harvard Dataverse

Date of Distribution:

2026-03-13

Version:

1

Bibliographic Citation:

ZHANG, Yuchi, 2026, "Replication Data for: “Effectiveness of Social Norm-Based Nudge Interventions on Food Waste Reduction: Evidence from a Field Experiment in a Chinese University Dining Facility” (Manuscript under review)", https://doi.org/10.7910/DVN/VOPUA0, Harvard Dataverse, V1, UNF:6:8UMKnNSXmQsvqzeV5wfwiA== [fileUNF]

Study Description

Citation

Title:

Replication Data for: “Effectiveness of Social Norm-Based Nudge Interventions on Food Waste Reduction: Evidence from a Field Experiment in a Chinese University Dining Facility” (Manuscript under review)

Identification Number:

doi:10.7910/DVN/VOPUA0

Authoring Entity:

ZHANG, Yuchi (The University of Osaka)

Distributor:

Harvard Dataverse

Access Authority:

ZHANG, Yuchi

Depositor:

ZHANG, Yuchi

Date of Deposit:

2026-03-11

Holdings Information:

https://doi.org/10.7910/DVN/VOPUA0

Study Scope

Keywords:

Social Sciences

Abstract:

This dataset contains the original observations used in the field experiment examining the effectiveness of social norm–based nudge interventions on food waste reduction in a university dining facility in China. The data record daily measurements of edible plate waste collected during lunchtime across treatment and control dining halls over a four-week experimental period in October–November 2024. Key variables include the total weight of food waste collected, the number of plates sampled, average waste per plate, treatment assignment, collection time, and weekday indicators. The associated research manuscript is currently under review.

Notes:

The field experiment was planned for 20 weekdays across two dining facilities (40 observations). Due to scheduling constraints and assistant availability on three days, three observations were not collected. The final dataset therefore contains 37 observations.

Methodology and Processing

Sources Statement

Data Access

Notes:

<a href="http://creativecommons.org/publicdomain/zero/1.0">CC0 1.0</a>

Other Study Description Materials

File Description--f13597594

File: original_data-1.tab

  • Number of cases: 40

  • No. of variables per record: 7

  • Type of File: text/tab-separated-values

Notes:

UNF:6:mS2g47BR7tfS3IYzjF+9Pg==

Raw dataset in Stata dataset format.

File Description--f13597593

File: original_data.tab

  • Number of cases: 40

  • No. of variables per record: 7

  • Type of File: text/tab-separated-values

Notes:

UNF:6:mS2g47BR7tfS3IYzjF+9Pg==

Raw dataset used in the empirical analysis.

File Description--f13597591

File: Treated_data.tab

  • Number of cases: 37

  • No. of variables per record: 14

  • Type of File: text/tab-separated-values

Notes:

UNF:6:rwfOGquvlv+w6PRvjPWQDg==

Stata dataset after the treatments on the original dataset.

Variable Description

List of Variables:

Variables

week

f13597594 Location:

Summary Statistics: Min. 0.0; Valid 40.0; Mean 0.75; StDev 0.4385290096535146; Max. 1.0

Variable Format: numeric

Notes: UNF:6:JNDn8sfhtXXePWdBCOUvEw==

totalweight

f13597594 Location:

Summary Statistics: Valid 37.0; Max. 14.0; Min. 3.549999952316284; Mean 8.355405401539159; StDev 2.2517173918036417

Variable Format: numeric

Notes: UNF:6:HVlnPuA+6VLSOop20rI2oQ==

numplate

f13597594 Location:

Summary Statistics: Mean 101.37837837837837; Min. 100.0; Valid 37.0; StDev 2.822049603384739; Max. 112.0

Variable Format: numeric

Notes: UNF:6:LTIXW7l//T4bNpv8h6+/aA==

averageweight

f13597594 Location:

Summary Statistics: Max. 127.2699966430664; Mean 82.08540529818148; Min. 35.5; Valid 37.0; StDev 20.327442251988145;

Variable Format: numeric

Notes: UNF:6:12JDn1N2pLXUzi+fNrkaBQ==

interv

f13597594 Location:

Summary Statistics: Min. 0.0; Max. 1.0; Mean 0.5; StDev 0.5063696835418333; Valid 40.0

Variable Format: numeric

Notes: UNF:6:mK/LEJ8X3R0tm5w3vCbSEg==

date

f13597594 Location:

Variable Format: character

Notes: UNF:6:3YWYOelqmr0x5FWuDt09Mg==

coltime

f13597594 Location:

Summary Statistics: Max. 40.0; StDev 8.394639359136875; Min. 8.0; Mean 26.594594594594593; Valid 37.0

Variable Format: numeric

Notes: UNF:6:FbJGSOMvUFyn+wO7dDTk0A==

week

f13597593 Location:

Summary Statistics: StDev 0.4385290096535146; Min. 0.0; Valid 40.0; Max. 1.0; Mean 0.75

Variable Format: numeric

Notes: UNF:6:JNDn8sfhtXXePWdBCOUvEw==

totalweight

f13597593 Location:

Summary Statistics: Max. 14.0; Mean 8.355405405405405; Min. 3.55; Valid 37.0; StDev 2.2517173626103877;

Variable Format: numeric

Notes: UNF:6:HVlnPuA+6VLSOop20rI2oQ==

numplate

f13597593 Location:

Summary Statistics: StDev 2.822049603384739; Valid 37.0; Max. 112.0; Min. 100.0; Mean 101.37837837837837

Variable Format: numeric

Notes: UNF:6:LTIXW7l//T4bNpv8h6+/aA==

averageweight

f13597593 Location:

Summary Statistics: StDev 20.327442350463745; Mean 82.08540532432433; Max. 127.27; Min. 35.5; Valid 37.0

Variable Format: numeric

Notes: UNF:6:12JDn1N2pLXUzi+fNrkaBQ==

interv

f13597593 Location:

Summary Statistics: Mean 0.5; Max. 1.0; Min. 0.0; Valid 40.0; StDev 0.5063696835418333

Variable Format: numeric

Notes: UNF:6:mK/LEJ8X3R0tm5w3vCbSEg==

date

f13597593 Location:

Variable Format: character

Notes: UNF:6:3YWYOelqmr0x5FWuDt09Mg==

coltime

f13597593 Location:

Summary Statistics: Min. 8.0; Max. 40.0; StDev 8.394639359136875; Valid 37.0; Mean 26.594594594594593

Variable Format: numeric

Notes: UNF:6:FbJGSOMvUFyn+wO7dDTk0A==

Post intervention indicator, week = 0: before treatment; week = 1: after treatme

f13597591 Location:

Summary Statistics: Max. 1.0; Min. 0.0; StDev 0.4349588362008399; Valid 37.0; Mean 0.7567567567567567

Variable Format: numeric

Notes: UNF:6:vSOx7yUApIK54j9Feg2CcQ==

Total weight of edible food waste collected each day (kg).

f13597591 Location:

Summary Statistics: StDev 2.2517173918036417; Mean 8.355405401539159; Max. 14.0; Min. 3.549999952316284; Valid 37.0

Variable Format: numeric

Notes: UNF:6:6jDVVocoWq8+5MISC8ko2Q==

Number of plates collected

f13597591 Location:

Summary Statistics: Min. 100.0; Max. 112.0; Mean 101.37837837837837; Valid 37.0; StDev 2.822049603384739

Variable Format: numeric

Notes: UNF:6:2uu6PK3SMjpiGGOE/hltfg==

Average weight of food waste per plate (grams), calculated as totalweight / nump

f13597591 Location:

Summary Statistics: Min. 35.5; StDev 20.327442251988145; Mean 82.08540529818148; Valid 37.0; Max. 127.2699966430664

Variable Format: numeric

Notes: UNF:6:GdoAFslCPQGcFX+HBN+yEg==

Treatment indicator for experimental group assignment, Interv = 0: control group

f13597591 Location:

Summary Statistics: Mean 0.5135135135135136; Min. 0.0; StDev 0.5067117097095316; Max. 1.0; Valid 37.0

Variable Format: numeric

Notes: UNF:6:WBTxe5Da3Pp7qDByULwicQ==

Calendar date of the experimental period.

f13597591 Location:

Variable Format: character

Notes: UNF:6:R3BGu9AKYu8kIMabFytSKQ==

Time required to collect the sampled food waste plates (minutes).

f13597591 Location:

Summary Statistics: Max. 40.0; Valid 37.0; StDev 8.394639359136875; Min. 8.0; Mean 26.594594594594593

Variable Format: numeric

Notes: UNF:6:lg85eFjcFCfx3FLttkBc3g==

Treatment × Week interaction

f13597591 Location:

Summary Statistics: Max. 1.0; Valid 37.0; StDev 0.49167239269837165; Mean 0.37837837837837845; Min. 0.0

Variable Format: numeric

Notes: UNF:6:nfHl0+F4IMGpZ5+O4dsKdQ==

full_date

f13597591 Location:

Variable Format: character

Notes: UNF:6:R3BGu9AKYu8kIMabFytSKQ==

Weekday indicator, weekday = 1: Monday … weekday = 5: Friday, weekday = 6: Satur

f13597591 Location:

Summary Statistics: Max. 6.0; Mean 3.081081081081081; Valid 37.0; Min. 1.0; StDev 1.4216261889192325

Variable Format: numeric

Notes: UNF:6:90rP3C5cA3vB8bXvJ+AWqw==

Week of experiment (1–4)

f13597591 Location:

Summary Statistics: StDev 1.1210516298354671; Mean 2.486486486486487; Max. 4.0; Min. 1.0; Valid 37.0

Variable Format: numeric

Notes: UNF:6:QuO37dBdm7/6oxGh5T+/Hg==

esample() from estimates store

f13597591 Location:

Summary Statistics: Min. 1.0; Valid 37.0; Max. 1.0; Mean 1.0; StDev 0.0

Variable Format: numeric

Notes: UNF:6:IaRvGG+smR6F2MFJike4tA==

esample() from estimates store

f13597591 Location:

Summary Statistics: StDev 0.0; Mean 1.0; Valid 37.0; Min. 1.0; Max. 1.0

Variable Format: numeric

Notes: UNF:6:IaRvGG+smR6F2MFJike4tA==

esample() from estimates store

f13597591 Location:

Summary Statistics: Max. 1.0; Mean 1.0; StDev 0.0; Min. 1.0; Valid 37.0

Variable Format: numeric

Notes: UNF:6:IaRvGG+smR6F2MFJike4tA==

Other Study-Related Materials

Label:

field_experiment_analysis.do

Text:

Stata code used to replicate the statistical analysis in the paper.

Notes:

text/x-stata-syntax

Other Study-Related Materials

Label:

README.txt

Text:

Instructions for using the attached datasets and the Stata code.

Notes:

text/plain