MCC is making available its Economic Rate of Return (ERR) data via interactive, downloadable Microsoft Excel spreadsheets. the spreadsheets are unique to each project within a compact.
Each spreadsheet includes:
- A description of the project, including its economic rationale;
- The expected project impacts, including detailed cost and benefit estimates;
- A tool allowing users to modify key assumptions and study the effects of those modifications on the project’s returns.
Some familiarity with cost-benefit analysis will be essential to use these spreadsheets.
The Essence of the Economic Rate of Return (ERR)
At its core, an ERR is a comparison of the costs and benefits of a public investment. In MCC’s analysis, the costs of a project reflect the necessary financial expenses, including those covered by other parties. The benefits include the increased income of a country’s population or value added by its firms due specifically to the proposed project. Estimating the ERR of a proposed project before the investment is made offers MCC a forecast of the project’s likely economic impact. More details on how the ERR is calculated are provided on subsequent pages.
Publicly Sharing ERRs
One of MCC’s guiding principles is that foreign assistance should reinforce good governance practices, including enhanced transparency in government decision-making. As one of its initiatives aimed at increased transparency, MCC is making the ERR spreadsheets that were used in its funding decisions publicly available on its website. The spreadsheets are being released in Microsoft Excel format so that users can interact with the formulas, supporting data, and underlying assumptions used in the calculations . In addition, many of the files include interactive components that allow users to change key assumptions and see how those changes affect the project’s ERR.
The spreadsheets reflect the technical rigor of the original economic calculations. In an effort to make the spreadsheets more broadly accessible, we have included a project description and a user’s guide in each file.
Calculating ERRs
MCC’s methodology for ERR analysis is best described as micro-economic growth analysis, which measures the expected increases in household incomes or the value-added of individual firms. ERRs can also be considered MCC’s best pre-investment estimate of the likely economic impact of the proposed investment. These ERRs also include income or value added that is expected to be generated through environmental and social improvements, but do not attempt to quantify and incorporate the broader social value of these improvements.
Every ERR calculation considers two scenarios:
- The expected outcome with the project investment; and
- The expected outcome without the project investment.
Scenario 1:
Expected Outcome with Project Investment
This scenario reflects the increases in income or value added generated by the proposed program, as well as the full costs related to the program.
Scenario 2:
Expected Outcome with No Project Investment
The second scenario, called the counterfactual, reflects an estimate of what is likely to happen in the future if no project investment takes place. While this may be considered a “status quo” scenario, the estimation of future economic outcomes without the project also accounts for dynamic trends. For example, a growing economy would be expected to continue growing consistent with recent projections, even without the project.
ERR analysis compares the difference in incomes or value added between the two scenarios. The ERR, then, is expressed in percentage terms, and represents the interest rate at which the discounted net benefits equal the discounted costs. Projects that are likely to generate larger increases in household incomes per dollar invested will have higher ERRs.
MCC models incorporate the best information available at the time regarding core parameters, but projections of future economic activity for both scenarios must account for uncertainty. MCC conducts sensitivity analysis on its ERRs using a range of plausible values on the major variables that drive the results. Thus, ERRs represent MCC’s best estimate of what we expect will happen as a result of the project, while the sensitivity analysis represents the potential range of outcomes.
MCC Investment Decisions
MCC takes into consideration a number of factors when making its decisions to approve Compact investments. First, we value country ownership and place a premium on supporting initiatives that have broad based support in the country and that were developed through a consultative process. We also examine whether the program proposal is consistent with MCC policies and guidelines on gender, the environment, and procurement procedures, among others. Given our focus on measurable results that will reduce poverty, we analyze each program to determine its sustainability and its Economic Rate of Return (ERR). We expect programs will generate adequate benefit streams to justify the specific investments. MCC also conducts beneficiary analysis to ensure that investments will deliver tangible benefits to the poor.
ERR and Due Diligence
MCC’s due diligence process includes the estimation of the economic rate of return (ERR) for projects in the proposal from each compact-eligible country. An ERR is a comparison of costs and the potential benefits of those costs.
In MCC’s analysis:
- Costs are the financial expenses of a proposed project, including expenses covered by other parties;
- Benefits are the increased income of a country’s population or value added by its firms due specifically to the proposed project.
ERRs and Compact Proposals
Compact-eligible countries prepare a compact proposal which identifies the main constraints to economic growth and proposes several programs to address those constraints.
These countries have the primary responsibility for analyzing the economic impact of their proposed programs, and are expected to estimate this impact with an ERR. MCC’s due diligence process includes reviewing and validating ERR estimates produced by our country partners and, if necessary, working with a country to identify and assess possible alternatives, modifications or complements to the proposed projects.
- Armenia's Irrigated Agriculture Project Infrastructure Activity
- Armenia's Irrigated Agriculture Project Water to Market Activity
- Armenia's Rural Road Rehabilitation
- Benin's Access to Financial Services
- Benin's Access to Justice
- Benin's Access to Land Project
- Benin's Access to Markets
- Burkina Faso's Agriculture Project, Di Irrigated Agriculture
- Burkina Faso's Agriculture Project, Léry Dam
- Burkina Faso's Road Project, Banfora - Sindou
- Burkina Faso's Road Project, Bomborokuy - Mali Border
- Burkina Faso's Road Project, Dédougou - Nouna
- Burkina Faso's Road Project, Koudougou - Perkoa
- Burkina Faso's Road Project, Koudougou - Sabou
- Burkina Faso's Road Project, Nouna - Bomborokuy
- Burkina Faso's Road Project, Perkoa - Didyr
- Cape Verde's Financial Sector Reform
- Cape Verde's Infrastructure, Port of Praia
- Cape Verde's Infrastructure, Roads and Bridges
- Cape Verde's Watershed Management and Agriculture Support
- Economic Rate of Return for Tanzania Water Project
- El Salvador's Connectivity Project
- El Salvador's Human Development Project, Community Infrastructure
- El Salvador's Human Development Project, Formal Technical Education
- El Salvador's Human Development Project, Non-formal Skills Development
- El Salvador's Human Development Project, Rural Electrification
- El Salvador's Human Development Project, Water Supply and Sanitation Infrastructure
- El Salvador's Productive Development Project
- Georgia's Agribusiness Development Activity
- Georgia's Energy Rehabilitation: North/South Gas Pipeline
- Georgia's Georgia Redevelopment Fund
- Georgia's Regional Infrastructure Development
- Georgia's Samtskhe-Javakheti Road
- Ghana's Farmer and Enterprise Training, Irrigation, Credit, and Land Tenure Activities
- Ghana's Feeder Roads
- Ghana's Improve Roads Project
- Ghana's Post-Harvest Handling
- Ghana's Rural Services Development, Education Project
- Ghana's Rural Services Development, Electrification Project
- Ghana's Rural Services Development, Water and Sanitation Project
- Ghana's Upgrade Highway N1
- Honduras' Rural Development
- Honduras' Transportation
- Lesotho's Health Sector Project
- Lesotho's Private Sector Development Project
- Lesotho's Water Sector Project, Metolong Dam
- Lesotho's Water Sector Project, Rural Water Supply
- Lesotho's Water Sector Project, Urban Water Supply
- Madagascar's Land Tenure Project, Finance Project, and Agricultural Business Investment Project
- Mali's Airport
- Mali's Alatona Irrigation
- Moldova's Access to Agricultural Finance
- Moldova's Combined Centralized Irrigation System Rehabilitation
- Mongolia's Health Project
- Mongolia's Property Rights Project, Peri-Urban
- Mongolia's Property Rights Project, Registry
- Mongolia's Rail Project
- Mongolia's Vocational Education Project
- Morocco's Artisan & Fez Medina
- Morocco's Date Tree Irrigation and Intensification
- Morocco's Enterprise Support
- Morocco's Financial Services
- Morocco's Olive Tree Irrigation and Intensification
- Morocco's Rain-fed Olive, Almond, and Fig Tree Expansion
- Morocco's Rain-fed Olive, Almond, and Fig Tree Rehabilitation
- Morocco's Rain-fed Olive, Almond, and Fig Tree Rehabilitation and Expansion
- Morocco's Small Scale Fisheries, Fish Landing Sites
- Morocco's Small Scale Fisheries, Mobile Fish Vendors
- Morocco's Small Scale Fisheries, Port Facilities
- Morocco's Small Scale Fisheries, Wholesale Fish Markets
- Mozambique's Farmer Income Support
- Mozambique's Land Tenure Services
- Mozambique's Roads
- Mozambique's Water & Sanitation
- Namibia's Agriculture Project, Indigenous Natural Products
- Namibia's Agriculture Project, Land Access and Management and Livestock Support
- Namibia's Education Project, COSDEC
- Namibia's Education Project, Expanding Access to Tertiary Finance
- Namibia's Education Project, Improving the Quality of General Education
- Namibia's Education Project, NTF/Vocational Training Fund
- Namibia's Education Project, Upgrading Access to and Management of Adequate Textbooks
- Namibia's Tourism Project, Ecotourism Development in Conservancies
- Namibia's Tourism Project, Improved Management of Etosha National Park
- Namibia's Tourism Project, Marketing Namibia Tourism
- Nicaragua's Property Registration
- Nicaragua's Rural Business Development
- Nicaragua's Transport
- Senegal's Irrigation and Water Resources Management Project Delta Irrigation Activity
- Senegal's Road Rehabilitation Project RN2 Activity
- Senegal's Road Rehabilitation Project RN6 Activity
- Tanzania's Energy Sector Project, Malagarasi Hydro
- Tanzania's Energy Sector Project, Transmission & Distribution
- Tanzania's Energy Sector Project, Zanzibar Cable
- Tanzania's Transport Sector Project, Mafia Airport
- Tanzania's Transport Sector Project, Mainland Roads
- Tanzania's Transport Sector Project, Zanzibar Roads
- Vanuatu's Transport Infrastucture and Institutional Strengthening Activities
Country Spreadsheets
Download spreadsheets to see MCC ERR data which helped determine the approval of these compacts.
These spreadsheets reflect the best information available to MCC at the time of the investment decision, and indicate the organization’s estimate of the project’s economic returns.
MCC understands that key parameters will change over time, and project design may be revised during implementation.
These spreadsheets provide a window into the assessment of economic impact used by the MCC in its consideration of the proposed investment. When project designs or model parameters change significantly, MCC may revise these models; updated information will be posted here as it becomes available.
Spreadsheet Data
What the spreadsheet data represent:
- An overall impact estimate. The spreadsheets provide MCC’s best pre-investment estimate of the likely economic impact of the project and form the basis for monitoring and evaluation efforts.
- Estimated benefits. The spreadsheets estimate the expected increases in either incomes or value added of individuals, households, firms or sectors of economic activity.
- A counterfactual scenario. Potential benefits are compared against what is likely to happen without the project (e.g., a growing economy would be expected to continue growing, even without the project).
- A snapshot in time. The spreadsheets reflect the best data available to MCC at the time the project was approved for investment.
What the spreadsheet data do not represent:
- The sole reason for an investment decision. Although ERRs are an integral part of MCC’s decision-making process, other factors are taken into account when MCC decides whether or not to undertake a project.
- A detailed beneficiary analysis. The ERR spreadsheets portray the overall economic impact of a project rather than apportioning the income gains along various demographic dimensions.
- Up-to-the-minute information for projects in implementation. Many of the parameters that are used in these pre-investment estimates change over time, so ERRs may not reflect the actual implementation experience. When project designs or model parameters change significantly, MCC may revise these models; updated information will be posted here as it becomes available.
Contact us at the Office of the Chief Economist.
MCC is making this information available to the public because we believe in transparency and the importance of this type of analytical work.
We welcome questions, comments, and criticism as part of our continuing effort to improve our products, and are eager to receive suggestions as to how we can make the presentation of this information more user-friendly.









