Consultancy service for carrying out face-to-face surveys within the framework of the impact assessment of the public transport subsidy

The Inter-American Development Bank (IDB) invites specialized consulting firms to submit proposals for the operational design, field execution and quality control of a survey of face-to-face surveys in Argentina (Project AR-L1410).

The objective is to collect primary data in vulnerable sectors (domestic workers or construction workers) to evaluate the impact of the public transport subsidy through a statistical methodology of differences in differences (DiD), within an execution period of 2 months.

1. Technical scope and methodological design
Probabilistic sampling and representativeness: Propose the maximum feasible number of face-to-face surveys according to the budget, defining margin of error, level of confidence and design effect.

Optimization of the instrument: Adapt the questionnaire provided to a maximum duration of 20 minutes to reduce abandonment, ensuring the capture of sociodemographic data, income, mobility patterns and transportation spending.

Incentives and operational flexibility: Design an incentive scheme (monetary or non-monetary) for respondents and structure logistics adaptable to different locations in the country according to the final assignment of treatment and control groups.

2. Key Activities and Quality Control
Training and pilot test: Train the team of enumerators and supervisors, executing a previous pilot to validate and adjust the collection tool.

Supervised fieldwork: Apply face-to-face surveys guaranteeing informed consent protocols, protection of personal data and direct supervision.

Data auditing (back-checks): Implement verification re-surveys on a subsample of applied questionnaires to certify the consistency of the information.

3. Expected deliverables
Output 1 — Work plan and protocol: Sample design, proposal for a maximum number of surveys, adapted questionnaire, incentive scheme and training plan.

Output 2 — Pilot test report: Pilot results and final instrument adjusted for mass deployment.

Output 3 — Database and field report: Cleaned database, variable dictionary, coverage report and back-check report.

Output 4 — Final methodological report: Consolidation of the process, lessons learned and strategic recommendations for subsequent evaluations.

Note: Interested companies should review the requirements on the BEO Bidder Portal.