Ohio Common Ground Research Center
OCG Visual Library
See the issue. Understand the facts.
Explore Ohio's important issues through charts, data, explainers, infographics and other visual resources created by the Ohio Common Ground Research Center.
Explore by Topic
Explore OCG visual research organized around the issues shaping Ohio.
Elections & Democracy
Independent research on electoral competition, voter choice, voting rules, ballot measures and the legal structure of Ohio elections.
Explore Topic →Affordability & Cost of Living
Independent research on housing, wages, prices, household budgets and how affordability changes over time.
Explore Topic →Healthcare
Independent research on who finances American healthcare, how coverage changes across life stages, and how affordability differs across generations.
Explore Topic →Government & Accountability
Independent research on how Ohio government works, how public money is used, how authority is distributed, and how public institutions are held accountable.
Explore Topic →Ohio Education
Independent research and data on Ohio K–12 funding, performance, district structure, accountability, school choice and rankings.
Explore Topic →Ohio Property Taxes
How Ohio property taxes work, where the money goes, the role of school funding, reform options, and what abolition would require.
Explore Topic →Data Centers & AI
Power, water, economics, infrastructure and policy questions surrounding Ohio's rapidly expanding data-center industry.
Explore Topic →Start Here
New to an issue? Choose a guided introduction designed to build understanding one visual at a time.
Affordability & Cost of Living: Start Here
A guided introduction to housing, wages, household costs and the measures used to compare affordability.
Start Learning Path →Data Centers & AI: Start Here
A curated sequence of visuals that introduces the key power, water, economic and policy questions surrounding Ohio data centers.
Start Learning Path →Elections & Democracy: Start Here
A guided introduction to electoral competition, voter choice, voting rules and constitutional ballot measures.
Start Learning Path →Government & Accountability: Start Here
A guided introduction to how Ohio government uses money, exercises authority, provides public access and measures accountability.
Start Learning Path →Healthcare: Start Here
A guided introduction to who finances healthcare, how coverage changes with age, and how affordability comparisons should be read.
Start Learning Path →Ohio Education: Start Here
A guided introduction to Ohio K–12 education: funding, measurement, school choice and district differences.
Start Learning Path →Ohio Property Taxes: Start Here
A curated path from how Ohio property taxes work to what abolition would – and would not – settle.
Start Learning Path →Latest Visuals
The newest charts, explainers, data graphics and infographics from the OCG Research Center.

What Issue 3 Can—and Cannot—Tell Voters
WP021 separates what can be established from the amendment's text from policy questions the paper does not answer.
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Issue 3 Leaves Several Election Rules to Ordinary Law
WP021 identifies adjacent election-administration rules that the proposed constitutional text does not itself resolve.
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Statute vs. Constitution: The Rule Can Be Harder to Change
WP021 distinguishes changing an ordinary statute from changing a requirement written into the Ohio Constitution.
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Issue 3 Does Not Itself Require Photo ID for Absentee Voting
WP021 reads the proposed amendment as allowing non-in-person voting to use a signature plus another unique identifier when authorized by law.
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Issue 3 Would Constitutionalize an Existing In-Person Photo-ID Rule
WP021 finds that Ohio already requires photo identification for in-person voting under statutory law that took effect in 2023.
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Uncontested Does Not Mean No One Voted
Some of Ohio's largest single-candidate legislative primaries still drew tens of thousands of votes.
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