AEA RCT Registry

Fields Changed

Registration

Field	Before	After
Trial Start Date	July 12, 2026	October 01, 2026
Trial End Date	September 30, 2026	December 31, 2026
Last Published	June 29, 2026 09:24 AM	September 14, 2026 10:14 AM
Intervention (Public)	In an online behavioral experiment, participants take on the role of production workers and make a binary decision between working business-as-usual (BAU) and investing in continuous improvement processes (CIP). In all treatment conditions, a Lean and Green measure is introduced. In the baseline treatment (T1), no additional corporate incentive scheme is implemented. In treatments 2-5, we additionally introduce and test different types of corporate interventions: T1: Baseline – Basic Lean & Green setting without corporate intervention T2: Corporate intervention – Fixed monetary reward T3: Corporate intervention – Fixed social reward T4: Corporate intervention – Variable monetary reward T5: Corporate intervention – Variable social reward The reward is granted if participants invest in continuous improvement processes and achieve an efficiency improvement. In the monetary reward treatments (T2 and T4), the reward is implemented as an additional monetary payment. In the social reward treatments, the reward is implemented as non-monetary recognition. In the fixed reward treatments, the reward is of the same size regardless of the magnitude of the efficiency improvement. In the variable reward treatments, the reward increases with the magnitude of the efficiency improvement. In T3, participants who invest in continuous improvement processes and achieve an efficiency improvement are listed on the Lean & Green Recognition Board. The recognition board displays the participant’s self-chosen display name, the change in the company’s efficiency score, and the associated reduction in CO₂ emissions. The recognition board is made available only after the experiment has been completed and is visible only to participants assigned to the respective treatment. In addition, in T5, participants who achieve a substantial efficiency improvement receive a certificate of recognition. The certificate includes the participant’s self-chosen display name, the achieved change in the company’s efficiency score, and the associated reduction in CO₂ emissions. The certificate is issued privately after completion of the experiment via Prolific and is accessible only to the respective participant.	In an online behavioral experiment, participants take on the role of production workers and make a binary decision between working business-as-usual (BAU) and investing in continuous improvement processes (CIP). In all treatment conditions, a Lean and Green measure is introduced. In the baseline treatment (T1), no additional corporate incentive scheme is implemented. In treatments 2-5, we additionally introduce and test different types of corporate interventions: T1: Baseline – Basic Lean & Green setting without corporate intervention T2: Corporate intervention – Fixed monetary reward T3: Corporate intervention – Fixed social reward T4: Corporate intervention – Variable monetary reward T5: Corporate intervention – Variable social reward The reward is granted if participants invest in continuous improvement processes and achieve an efficiency improvement. In the monetary reward treatments (T2 and T4), the reward is implemented as an additional monetary payment. In the social reward treatments, the reward is implemented as non-monetary recognition. In the fixed reward treatments, the reward is of the same size regardless of the magnitude of the efficiency improvement. In the variable reward treatments, the reward increases with the magnitude of the efficiency improvement. In T3, participants who invest in continuous improvement processes and achieve either a small or a substantial efficiency improvement are displayed on the Lean & Green Recognition Board. The board displays the participant’s self-chosen display name, the change in the company’s efficiency score, and the associated reduction in CO₂ emissions. The same form of recognition is provided irrespective of the magnitude of the efficiency improvement. In T5, the form of recognition varies with the magnitude of the achieved efficiency improvement. Participants who achieve a small efficiency improvement are displayed on the Lean & Green Recognition List, which shows their self-chosen display name and the change in the company’s efficiency score. Participants who achieve a substantial efficiency improvement are recognized in the Lean & Green Honor Hall of Recognition, where a personalized Certificate of Achievement displaying their self-chosen display name, the change in the company’s efficiency score, and the associated reduction in CO₂ emissions is presented. The respective recognition format is made available only after the experiment has been completed and is visible only to participants assigned to the corresponding treatment.
Intervention Start Date	July 12, 2026	October 01, 2026
Intervention End Date	September 30, 2026	December 31, 2026
Randomization Unit	We randomize at the level of the individual. Each participant is assigned to one of the five treatment conditions (Treatment 1– Treatment 5).	We randomize at the level of the individual. Each participant is assigned to one of the five treatment conditions (Treatment 1–Treatment 5).
Planned Number of Clusters	500 English-fluent individuals from European countries with non-managerial work experience in industry sectors or occupational areas relevant to Lean and Green practices.	500 English-fluent individuals residing in the United States with non-managerial work experience in industry sectors or occupational areas relevant to Lean and Green practices.
Planned Number of Observations	500 English-fluent individuals from European countries with non-managerial work experience in industry sectors or occupational areas relevant to Lean and Green practices.	500 English-fluent individuals residing in the United States with non-managerial work experience in industry sectors or occupational areas relevant to Lean and Green practices.