Information Frictions, Screening, and Matching in Apprenticeship Markets

Last registered on March 16, 2026

Pre-Trial

Trial Information

General Information

Title
Information Frictions, Screening, and Matching in Apprenticeship Markets
RCT ID
AEARCTR-0018082
Initial registration date
March 12, 2026

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 16, 2026, 6:54 AM EDT

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

Locations

Region

Primary Investigator

Affiliation
University of Bologna

Other Primary Investigator(s)

PI Affiliation
Tilburg University
PI Affiliation
Fondo per la Repubblica Digitale

Additional Trial Information

Status
In development
Start date
2026-03-18
End date
2027-12-31
Secondary IDs
Prior work
This trial does not extend or rely on any prior RCTs.
Abstract
Labor markets in low-income settings are shaped by pervasive frictions. Thin labor demand and weak intermediation networks, limited screening capacity, and imperfect information on both sides of the market can generate misaligned expectations, misdirected search, and low-quality matches (Breza and Kaur, 2025; Caria and Orkin, 2024). In this project – rather than focusing on firm-side screening and monitoring (see Bassi and Nansamba, 2022) – we randomize personalized information provided to workers about sector- and employer-specific hiring feasibility, and examine how this shapes their employment preferences, and which sectors they target. We will implement a two-sided incentivized résumé-rating (IRR) design (Kessler et al., 2019) that separately measures (i) firm-side screening and (ii) worker-side beliefs and targeting. The study takes place in West Nile, Uganda, a border region adjacent to South Sudan, where the labor market includes both local Ugandan workers and a large population of refugees. We partner with approximately 120 firms offering a total of 216 job posts and recruit around 800 job seekers to participate in the matching process.
External Link(s)

Registration Citation

Citation
Tommasi, Denni, Roberto Vacante and Till Wicker. 2026. "Information Frictions, Screening, and Matching in Apprenticeship Markets." AEA RCT Registry. March 16. https://doi.org/10.1257/rct.18082-1.0
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Experimental Details

Interventions

Intervention(s)
800 young jobseekers residing in Uganda’s West Nile region submit Expressions of Interest (EOI, containing basic demographic information), to be selected for ACAV’s 10-month vocational training program. This program consists of formal training, and an apprenticeship. In the EOI, jobseekers indicate their preferred areas of employment (e.g., tailoring, mechanic).

Based on the demographic information collected in the EOIs, we will construct 4,000 randomized candidate CVs that reflect the population demographics of the 800 young jobseekers. The hiring managers of the 120 firms (with 216 vacancies) participating in this study will then evaluate a random subset of 32 of these hypothetical CVs, rank their interest in the profile on a scale of 1-10, and shortlist 8 CVs. As such, firms undergo an incentivized résumé-rating (IRR; Kessler et al., 2019). The firm-side IRR will provide insights about which traits firms value, and will be used to calculate a predictive hiring probability for each worker–firm pair.

Subsequently, the 800 young jobseekers will complete an IRR, by evaluating 18 hypothetical firm profiles across their preferred areas of work, drawn from firm profiles. The hypothetical firm profiles will be based on data of the 120 participating firms. For each profile that workers see, they must indicate their interest in working for this firm (with a binding cap that limits how many firms workers can signal their interest to).

Among the young jobseekers who complete the IRR, there are two treatment arms. In the Control arm, jobseekers merely see the hypothetical firm profiles. In the Treatment arm, the jobseeker sees the hypothetical firm profiles along with their personalized predictive hiring probability per firm profile, based on the calculations done following the firm-side IRR.

After the firm- and worker-side IRRs have been completed, the preferences of both firms and workers will be used to select the 216 jobseekers for the available vacancies.

Workers and firms will be monitored during the vocational training program, apprenticeship, and for 6 months afterwards.
Intervention Start Date
2026-06-01
Intervention End Date
2027-04-30

Primary Outcomes

Primary Outcomes (end points)
Firm-side IRR:
For each hypothetical worker profile:
- Interest in hiring worker for apprenticeship program (intensive margin, 0-10)
- Interest in hiring worker for apprenticeship program (yes/no; extensive margin)
- Justification of the rating of each profiles

Worker-side IRR:
- Preferences of workers about workplace characteristics;
- Application/signaling choices across firm profiles;
- Profile rankings and stated workplace preferences;
- Subjective probability of being shortlisted by each firm profile.
Primary Outcomes (explanation)
The primary outcomes are intended to capture both efficiency and allocation: how the information treatment changes application targeting, realized matches, and the quality of those matches, while the firm-side IRR measures the screening object used to construct the signal shown to treated workers.

Secondary Outcomes

Secondary Outcomes (end points)
Firm-side IRR:
- Firm-level characteristics (number of employees, annual revenue, value of capital, working hours, workplace amenities)
- Firm-level hiring constraints (difficulty of hiring workers with desirable characteristics)
- Social desirability and experimenter demand effect related questions.

Worker-side IRR:
Perceived job value, belief accuracy (the gap between subjective and model-implied screening feasibility), perceived discrimination/safety, perceived job burden, and task difficulty / effort.
Interpretation checks on what workers believe the signal represents, plus worker-side experimenter-demand-effect questions.

During Apprenticeship Period:
Attendance, completion, separation, retention by the firm, earnings, and job satisfaction measured during the program and in the 6-month follow-up.
Secondary Outcomes (explanation)
Secondary outcomes are mainly mechanisms and longer-run performance measures used to understand whether information changes beliefs, self-selection, and post-placement retention.

Experimental Design

Experimental Design
The study uses a two-sided IRR design. First, firms participate in a within-firm 2x2 randomized CV-rating exercise that varies refugee status and ACAV quality certification across hypothetical worker profiles. Second, workers are randomized to Control or Treatment in the worker-side IRR, where the treatment reveals a personalized screening-feasibility signal. The study then follows the resulting allocations into real vocational placements and post-program outcomes.
Experimental Design Details
Not available
Randomization Method
Randomization is done by computer. In the firm-side IRR, refugee status and ACAV quality certification are randomized within firms in a balanced 2x2 design across the 32 evaluated CVs. In the worker-side IRR, jobseekers are randomized to Control or Treatment, stratified by gender, refugee status, and preferred vocational sector/area group.
Randomization Unit
Profile-level within firms (firm-side IRR) and worker-level (worker-side IRR).
Was the treatment clustered?
No

Experiment Characteristics

Sample size: planned number of clusters
Firm-side IRR analyses cluster at the firm level and, in preferred specifications, also by base CV profile. Worker-side IRR analyses cluster at the worker/respondent level (Abadie et al., 2023).
Sample size: planned number of observations
120 firms, 800 workers.
Sample size (or number of clusters) by treatment arms
400 workers in the Control group, 400 workers in the Treatment group.
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
The attached technical appendix provides power calculations for the firm-side 2x2 IRR with m = 32 CVs per firm. This is the experiment for which we have the least power. With 100 firms, the main-effect MDE is about 10.0 percentage points under ICC = 0.10 (interaction MDE approximately 20 p.p.); if all approximately 200 planned firms complete the IRR, the same benchmark falls to about 7.1 p.p. under the same assumption.
IRB

Institutional Review Boards (IRBs)

IRB Name
TiSEM Institutional Review Board
IRB Approval Date
2026-02-11
IRB Approval Number
IRB FUL 2026-002