IBRD only vs Tonga: CPIA efficiency of revenue mobilization rating
CPIA efficiency of revenue mobilization rating over time
- IBRD only
- Tonga
How they compare
Tonga currently reports 4 1=low to 6=high against 3.5 1=low to 6=high in IBRD only, a difference of 0.5 1=low to 6=high.
That makes Tonga's figure about 1.1 times IBRD only's.
The two have swapped places 1 time across 15 shared years of data; in 2005 it was IBRD only ahead.
IBRD only ranks 5th and Tonga ranks 6th of 42 groups.
Across the 2 decades both report, IBRD only averaged higher in 1 and Tonga in 1.
Head to head by decade
| Decade | IBRD only | Tonga | Difference | Ahead |
|---|---|---|---|---|
| 2000s | 3.63 1=low to 6=high | 3.2 1=low to 6=high | 0.4308 1=low to 6=high | IBRD only |
| 2010s | 3.64 1=low to 6=high | 4.05 1=low to 6=high | 0.4133 1=low to 6=high | Tonga |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher cpia efficiency of revenue mobilization rating, IBRD only or Tonga?
- Tonga, at 4 1=low to 6=high against 3.5 1=low to 6=high in IBRD only as of 2025.
- What is the difference in cpia efficiency of revenue mobilization rating between IBRD only and Tonga?
- 0.5 1=low to 6=high, with Tonga ahead.
- How many years of comparable data are there for IBRD only and Tonga?
- 15 years are reported by both, from 2005 to 2019.
- How do IBRD only and Tonga rank globally for cpia efficiency of revenue mobilization rating?
- IBRD only ranks 5th and Tonga ranks 6th of 42 groups.
- Where does this data come from?
- CPIA database, World Bank Group (WBG), published as CPIA efficiency of revenue mobilization rating (1=low to 6=high). Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
The Country Policy and Institutional Assessment (CPIA) measures the extent to which a country’s policy and institutional framework supports sustainable growth and poverty reduction, and consequently the effective use of development assistance. The outcome of the exercise yields both an overall score and scores for sixteen criteria that compose the CPIA. These criteria include: A. Economic Management (1. Monetary and Exchange Rate Policies; 2. Fiscal Policy; 3. Debt Policy and Management), B. Structural Policies (4. Trade; 5. Financial Sector; 6. Business Regulatory Environment), C. Policies for Social Inclusion/Equity (7. Gender equality; 8. Equity of public resource use; 9. Building human resources; 10. Social protection and labor; 11. Policies and institutions for environmental sustainability), D. Public Sector Management and Institutions (12. Property rights and rule-based governance; 13. Quality of budgetary and financial management; 14. Efficiency of revenue mobilization; 15. Quality of public administration; 16. Transparency, accountability, and corruption in the public sector). This Efficiency of Revenue Mobilization criterion assesses the overall pattern of revenue mobilization, not only the tax structure as it exists on paper, but revenue from all sources as they are collected. Separate sub-ratings are provided for (a) tax policy and (b) tax administration.