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A flagship diagnostic tool by Opposition International — measuring democratic opposition strength across 105 countries.

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What Is the OPI?

The Opposition Performance Index (OPI) is the first systematic, cross-national diagnostic tool purpose-built to measure how well democratic oppositions are functioning. Developed by Opposition International, it answers a question that democracy funders, researchers, and practitioners have long struggled to ask rigorously: where are oppositions strong enough to matter, and where are they too weak to stop democratic decline?

The OPI draws on 14 opposition-specific indicators from the V-Dem dataset — the world’s most comprehensive democracy measurement project — curated in collaboration with Professor Michael Coppedge of the University of Notre Dame, V-Dem’s co-founder and principal investigator.

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How It Works

Countries are scored on a 0–100 scale across two factors:

Factor 1 — Opposition Strength & Legislative Accountability (70% weight)
Measures opposition participation in the legislative process, party autonomy, legislative oversight, barriers to party formation, platform distinctiveness, and subnational competition.

Factor 2 — Party Institutionalization (30% weight)
Measures legislative party cohesion and programmatic party orientation — the organizational infrastructure that determines whether an opposition can sustain pressure over time.

The OPI diagnoses eight deficiency dimensions for each country: Opposition Autonomy, Legislative Oversight, Party Freedom, Civil Liberties, Electoral Integrity, Party Cohesion, International Leverage, and Intra-Regime Splits.

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The Strategic Framework

The OPI is not a ranking — it is an action framework. Each country’s score is paired with a strategic recommendation drawn from four complementary research traditions:

• Laura Gamboa’s opposition strategy typology (institutional vs. extra-institutional; moderate vs. radical goals)
• Levitsky and Way’s structural conditions for democratic survival (linkage and leverage)
• Nancy Bermeo’s backsliding mechanisms (executive aggrandizement, promissory coups, election-day fraud)
• Adam Przeworski’s institutionalized uncertainty criterion (whether elections can produce alternation in power)

The result is a single-page country diagnostic that tells a donor, a party advisor, or a program officer: what kind of intervention is viable here, and why.

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Coverage

The OPI currently covers 105 democracy-challenged countries, with featured deep-dive profiles for Bangladesh, the Philippines, Nigeria, Hungary, Venezuela, Turkey, Serbia, and Myanmar. Priority countries are updated annually. A five-year velocity indicator shows whether opposition capacity is rising, stable, or declining — critical context for investment decisions.

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Download & Explore

The following resources are available for download. For database access or a country briefing, contact Opposition International directly.

• 📊 OPI Gamboa Matrix Report (PDF) — Full country matrix with Gamboa strategy classifications, OPI scores, and intervention tiers
• 📝 After Hirschman: Gamboa Strategy Framework (Word) — The theoretical framework underlying OPI’s strategic recommendations
• 📝 V-Dem / OPI Dashboard Text Boxes (Word) — Full analytical commentary on the dashboard methodology and country findings
• 📝 OPI Database Access Instructions (Word) — Technical guide to navigating the full OPI database

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Why It Matters for Donors

Democracy support has historically lacked a common diagnostic language. Donors fund programs country-by-country with limited ability to compare opposition contexts, prioritize scarce resources, or measure whether the strategic conditions for their investments are actually present.

The OPI fills that gap. It enables portfolio-level decision-making: identifying which countries are in a critical window where investment can lock in democratic gains, which are in managed decline where defensive programming is needed, and which are in survival mode where documentation and diaspora support are the only viable options.

The index is free to use and cite. Opposition International welcomes partnerships with donors, foundations, and research institutions to expand coverage, deepen country profiles, and build the OPI into a permanent observatory for democratic opposition health worldwide.

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Contact

For country briefings, partnership inquiries, or database access: info@opposition.international

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