Financial Constraints to Exporting: Experimental Evidence from Rwanda

Last registered on April 26, 2024

Pre-Trial

Trial Information

General Information

Title
Financial Constraints to Exporting: Experimental Evidence from Rwanda
RCT ID
AEARCTR-0013231
Initial registration date
April 21, 2024

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
April 26, 2024, 11:50 AM EDT

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

Locations

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Primary Investigator

Affiliation
Yale University

Other Primary Investigator(s)

PI Affiliation
Harvard Kennedy School
PI Affiliation
International Growth Centre
PI Affiliation
Universite Libre de Bruxelles

Additional Trial Information

Status
In development
Start date
2024-05-01
End date
2026-11-30
Secondary IDs
Prior work
This trial does not extend or rely on any prior RCTs.
Abstract
Export-led growth has long been seen as a key to unlocking structural transformation. In pursuance of this goal, low-income country governments often enact policies to encourage firms to overcome barriers to exporting, such as subsidized credit designed to ease financial frictions. In this project, we propose one of the first randomized controlled trials of one such policy. We partner with Rwanda’s Ministry of Trade and Industry, as well as the Development Bank of Rwanda (BRD), to evaluate Rwanda’s Export Growth Fund (EGF), which provides large subsidized loans to exporters and potential exporters at preferential interest rates. We generate exogenous variation in loan take-up by partnering with the BRD to conduct a door-to-door campaign with randomly selected large and medium-sized firms, in which treated firms receive both promotional materials and application support from BRD staffers. Using a combination of unique administrative data access from the Rwandan Revenue Authority (RRA) and primary survey data collection, we measure the impact of the EGF on key firm performance outcomes, shed light on underlying mechanisms, and measure the aggregate economic effects of this policy
External Link(s)

Registration Citation

Citation
Bai, Jie et al. 2024. "Financial Constraints to Exporting: Experimental Evidence from Rwanda." AEA RCT Registry. April 26. https://doi.org/10.1257/rct.13231-1.0
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Experimental Details

Interventions

Intervention(s)
1) We will use administrative data from the Rwandan Revenue Authority (RRA) including customs data, VAT tax data, corporate income tax data, and other datasets to estimate a model predicting likely adoption of the EGF based on firm characteristics. This analysis will be accessed on an on-site secure RRA data facility. The model will be used to identify ~5,000 firms with the highest propensity score (excluding existing recipients).

We will then conduct a listing exercise with these ~5,000 firms. This exercise will be conducted mostly on the phone, with an in-person follow-up for (potentially a subset) those unreachable via phone. Firms will be given a short survey to collect additional contact information and gauge general interest in expanding access to credit and exporting. This will be used to screen out firms who (1) are hard to reach/unwilling to be surveyed; (2) do not express interest in increasing access to credit or (3) do not express interest in exporting in the future. We expect this to result in a reduced target sample of 2,000 firms.

2) We will randomize these 2,000 firms into 500 treatment and 1,500 control. As detailed below in the Power Calculation section, we have chosen to have more controls than treated firms in this experiment due to the high cost of treatment relative to data collection, especially for outcomes available in the administrative data. In these cases, a greater number of controls is optimal for power given a fixed project budget (Duflo et al, 2006). We will use the administrative data to stratify our randomization by firm size, sector, and prior export history. This administrative data from the pre-experiment period will also be used to test for balance among treatment and control groups, as well as to serve as baseline controls in our analysis.

We will then conduct a door-to-door campaign in conjunction with the BRD for treatment firms. This campaign will be comprised of two components:

(i) An information campaign, in which the firm will be given information about the EGF, including details about the loan facility, the application procedure, and the typical uses of the loan among existing borrowers.

(ii) Application support, in which the BRD will send a loan officer to the firm’s establishment multiple weeks after the first visit (giving the firm time to compile the documents) to assist in assembling and filling out the application paperwork, which includes a business plan; financial reports (profit and loss statements, balance sheets and cashflow statement); and bank statements (or mobile money statements) documenting the financial conditions of the firm.

The BRD will then conduct its loan review as under its standard operating procedure for all applicants. The goal is that the door-to-door campaign serves as "randomized encouragement" for firms to apply, such that we can use treatment as an instrument for taking out an EGF loan. We will then measure the impact of taking out an EGF loan on a variety of firm and supply chain outcomes (see below for more details on outcomes).
Intervention Start Date
2024-08-01
Intervention End Date
2025-03-01

Primary Outcomes

Primary Outcomes (end points)
Using a combination of administrative data (customs, VAT, Corporate income tax, firm-level employees information from PAYE) and firm surveys we will measure the impact of the Export Growth Fund (EGF) over several key outcomes:

1) Total firm credit access.
2) Firm revenue, employment and export performance
Primary Outcomes (explanation)
1) Total firm credit access: we will measure total borrowing from firm-level surveys on the loan portfolio. The objective is to analyze whether firms substitute away from commercial loans at market rates and whether they increase their total borrowing.

2) Firm revenue, employment and export performance: we will measure these outcomes in administrative data, using CIT, PAYE and customs data, respectively. Export performance will be separated into the extensive margin (any exporting) and several intensive margin measures (total exports, number of export destinations, number of products exported).

Secondary Outcomes

Secondary Outcomes (end points)
1) Mechanisms affecting firms' performance outcomes: quality upgrading, certification, export promotion, capacity expansion, etc.

(2) Impact on industry -level outcomes and spillover effects on non-recipients, including upstream firms
Secondary Outcomes (explanation)
(1) Mechanisms affecting firms' performance outcomes: this will be measured a using a combination of firm surveys and administrative data. This will include measures of quality upgrading (measured using self-reported quality measures), number and type of certifications obtained (obtained from the Rwandan Standards Board (RSB) and self- reported in firm surveys), total investment and expenses in training and research (as reported in administrative data), export promotion activities (as reported in firm surveys) and capacity expansion (as reported by self-assessed total capacity in firm-level surveys).

(2) Impact on aggregate outcomes and spillover effects on non-recipients, including upstream firms: For aggregate outcomes, we will analyze how industry-level variables such as total exports, total domestic sales and total number of employees (constructed from administrative data) are affected (using, for instance, the share of treated firms across sector/regions, conditional on the share in our study sample). We will also estimate spillover effects on upstream suppliers, using pre-existing firm-to-firm linkage data in the VAT data.

Experimental Design

Experimental Design
The Export Growth Fund (EGF) was first launched in 2017, strategically conceived by the Ministry of Trade and Industry (MINICOM) and implemented by the Rwandan Development Bank (BRD). Since then, more than 120 loans have been issued to approximately 80 firms, totaling $21 million USD in lent funds. However, this falls far below the 200-500 beneficiaries and $50 million USD per year in loans targeted by MINICOM (MINICOM National Export Strategy, 2015). The slow launch has been linked to low awareness of the facility. Qualitative exploratory work conducted by the PIs, including interviews with non-recipients, confirms limited awareness of the facility among exporters and large firms (although interest is high upon being informed).

Given their plans to significantly expand access in the coming years, the BRD and MINICOM have agreed to partner with the PIs to conduct a randomized door-to-door campaign to target firms. First, we will use rich administrative data, to which we have been given access by the Rwandan Revenue Authority (RRA), to identify target firms.

Then, with a random subset of these firms, we will conduct a door-to-door campaign in conjunction with the BRD. This campaign will be comprised of two components: the first is an information campaign, in which the firm will be given information about the EGF, including details about the loan facility, the application procedure, and the typical uses of the loan among existing borrowers. The second component is application support, in which the BRD will send a loan officer to the firm’s establishment multiple weeks after the first visit (giving the firm time to compile the documents) to assist in assembling and filling out the application paperwork, which includes (i) a business plan; (ii) financial reports (profit and loss statements, balance sheets and cashflow statement); and (iii) bank statements (or mobile money statements) documenting the financial conditions of the firm.

The BRD and MINICOM have agreed to randomize this door-to-door outreach among target firms. We will therefore use randomized receipt of the door-to-door campaign as an instrument for EGF loan take-up. Though we do not expect perfect compliance (see the below section on Power Calculations for take-up assumptions), we do expect this to serve as a strong first-stage for EGF adoption, given that (i) firms are pre-screened as likely adopters in the administrative data; (ii) firms have expressed a high degree of interest for information + application support, and (iii) the BRD is eager to issue a large number of loans to this target group of firms.
Experimental Design Details
Not available
Randomization Method
Randomization will be done by the PIs on a computer at a secure facility of the Rwanda Revenue Authority
Randomization Unit
Firms
Was the treatment clustered?
No

Experiment Characteristics

Sample size: planned number of clusters
2000 Firms
Sample size: planned number of observations
2000 Firms
Sample size (or number of clusters) by treatment arms
1500 Firms Control, 500 Firms Treatment
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
We conduct power calculations using administrative data from the RRA, along with the results from a retrospective difference-in-difference analysis of a previous non-experimental round of the EGF program. The average revenue of the 2000 most similar firms to EGF recipients according to our PSM analysis is 280 million Rwandan Franc (RWF) ($232,000 USD). The standard deviation is 233 million RWF ($192,000 USD). Since we will be using administrative data to evaluate the impact of the intervention, we will have access to several post-intervention measurements. For the purpose of this power calculation, we analyze the impact with 3 follow-up measurements and 1 baseline. The within-firm correlation of revenues across periods in the administrative data is 0.81. As explained above, we will use a larger control set than our treatment, taking advantage of the almost null cost of additional control units using administrative data. We use a treatment-to-control ratio of 0.25, with 1500 firms in the control and 500 in the treatment. To be conservative, we assume a take-up rate of 25%, below the average of 30% from 5 microcredit studies in Banerjee et al. 2015. However, there are two factors that we expect to drive a strong take-up rate in our case: first, interest rates under EGF are highly subsidized and significantly below commercial bank rates. Secondly, we will target a group of likely adopters (those that share similar characteristics to prior EGF recipients), randomizing within this group of firms. Our simulations suggest that with 500 treated firms, we will be able to detect an increase in revenues of 0.26 standard deviations. Importantly, this is less than half of what we find in our difference-in-difference analysis, where we find an average increase of 0.6 standard deviation 2 years after receiving an EGF loan. In fact, with 500 treated firms, we would be able to detect an impact like that we find in the DiD retrospective analysis with a take-up rate as low as 11%.
IRB

Institutional Review Boards (IRBs)

IRB Name
Yale University IRB
IRB Approval Date
2023-10-12
IRB Approval Number
2000035882
IRB Name
Rwanda National Ethics Board
IRB Approval Date
2024-01-13
IRB Approval Number
00001497