Knowledge and Performance Pay - A Field Experiment with a Large Retail-Chain

Last registered on March 24, 2017

Pre-Trial

Trial Information

General Information

Title
Knowledge and Performance Pay - A Field Experiment with a Large Retail-Chain
RCT ID
AEARCTR-0002127
Initial registration date
March 24, 2017

Initial registration date is when the trial was registered.

It corresponds to when the registration was submitted to the Registry to be reviewed for publication.

First published
March 24, 2017, 4:22 PM EDT

First published corresponds to when the trial was first made public on the Registry after being reviewed.

Locations

Region

Primary Investigator

Affiliation
Frankfurt School of Finance and Management

Other Primary Investigator(s)

PI Affiliation
University of Applied Science Neuss
PI Affiliation
University of Cologne

Additional Trial Information

Status
In development
Start date
2017-03-24
End date
2017-12-31
Secondary IDs
Abstract
Within a large retail chain we introduce a bonus payment for store managers and provide knowledge about the production function, implementing a 2x2 experimental design. The bonus is based on the store’s profit contribution margin (= sales - costs of goods sold - inventory shrinkage - personnel costs).
Store managers in one region in South-West Germany are randomly assigned to one of four treatments. 25% of store managers serve as the control group. 25% of store managers receive a bonus based on the contribution margin. Another 25% of store managers get access to an online training on the contribution margin as well as novel information about the profit margins of all products in the store. The remaining 25% receive both, the bonus and the information about the production function.
Based on a theoretical model we hypothesize that both, giving only the bonus as well as only the further knowledge about the production function will increase performance. But we also hypothesize that there is a complementarity between both, i.e. the combination of both should lead the biggest increase.
External Link(s)

Registration Citation

Citation
Manthei, Kathrin, Dirk Sliwka and Timo Vogelsang. 2017. "Knowledge and Performance Pay - A Field Experiment with a Large Retail-Chain." AEA RCT Registry. March 24. https://doi.org/10.1257/rct.2127-1.0
Former Citation
Manthei, Kathrin, Dirk Sliwka and Timo Vogelsang. 2017. "Knowledge and Performance Pay - A Field Experiment with a Large Retail-Chain." AEA RCT Registry. March 24. https://www.socialscienceregistry.org/trials/2127/history/15417
Experimental Details

Interventions

Intervention(s)
Intervention Start Date
2017-03-24
Intervention End Date
2017-06-30

Primary Outcomes

Primary Outcomes (end points)
The contribution margin on the store level (as well as all its components), further retail key figures, questionnaire data (pre and post)
Primary Outcomes (explanation)

Secondary Outcomes

Secondary Outcomes (end points)
Secondary Outcomes (explanation)

Experimental Design

Experimental Design
The intervention takes place in one region in the South-West of Germany. We randomly assign districts within each region to either TreatKNOW (1), TreatBON (2), TreatKNOWBON (3), or the Control group (4) using stratifications depending on the predicted contribution margin in the first treatment month. Randomization at the district level, although the unit of observation is the store level, gives us the possibility to separate treatment and control groups and only inform them concerning their specific treatment interventions.

TreatBON: Store managers receive a three-month bonus for an increase of their contribution margin above 80% of its planned value (following from the accounting plan for each store). In each month, store managers receive a bonus value of 0.05 * (contribution margin in € - 80% of the plan value). Cumulative bonus values are paid out after three month (capped at zero). Store managers receive monthly feedback on the respective bonus values.

TreatKNOW: Store managers get access to an online video and quiz which explains their possibilities to influence the contribution margin. We developed the training and shot the video especially for the cause of the field experiment. Additionally, they receive information about the relative profit margin of each product (this is novel information to them).
After the video store managers have to answer 14 related questions. There is, however, no direct request to increase the contribution margin. Store managers further receive a monthly overview about the development of the contribution margin (and all parts of it) apart from the possible monthly bonus notifications.

TreatKNOWBON: Is the combination of TreatBON and TreatKNOW.

Control: The control group does not receive any sort of information. They do not know about the other treatment groups.


We briefed the district managers how to react to different sorts of questions concerning the experimental design.
The company’s worker council agreed to this intervention. This serves as an IRB substitute.
Experimental Design Details
Randomization Method
Stratification method
Randomization Unit
District
Was the treatment clustered?
Yes

Experiment Characteristics

Sample size: planned number of clusters
54 districts
Sample size: planned number of observations
395 stores
Sample size (or number of clusters) by treatment arms
Control: 98 stores
TreatKNOW: 95 stores
TreatBON: 100 stores
TreatKNOWBON: 102 stores

Note: There can be slight changes in the number of treated stores as pay experience has shown that the firm may reconfigure district compositions for administrative reasons at short notice. However, this should concern only very few stores and we document reasons and procedures.
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
IRB

Institutional Review Boards (IRBs)

IRB Name
IRB Approval Date
IRB Approval Number

Post-Trial

Post Trial Information

Study Withdrawal

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Intervention

Is the intervention completed?
No
Data Collection Complete
Data Publication

Data Publication

Is public data available?
No

Program Files

Program Files
Reports, Papers & Other Materials

Relevant Paper(s)

Reports & Other Materials