Claudio Agostini
Research Collaborator
A global research collaboration mapping firm behavior, tax policy frictions, and efficiency impacts across countries.
Each country has unique tax system characteristics that influence corporate responsiveness. The corporate elasticity of taxable income (ETI) summarizes how strongly firms adjust reported income when tax rates change. Higher ETI values indicate larger behavioral responses, while lower values imply more muted responses.
Browse estimates from our study partners and predicted elasticities for countries worldwide
The elasticity of taxable income (ETI) measures how firms adjust their reported taxable income in response to changes in tax rates. This fundamental parameter helps policymakers understand both the efficiency costs and revenue implications of corporate tax reforms.
A higher elasticity means firms are more responsive to tax incentives -- they may invest less, shift profits, or change their business structures more readily when faced with rate changes. Understanding these behavioral responses is crucial for designing effective tax policy.
Our research shows elasticities range from 0.08 to 1.9 across countries, implying that identical tax reforms can generate sharply different behavioral and revenue responses.
We use administrative data and a unified bunching estimator to estimate these elasticities. See The Elasticity of Taxable Income Across Countries for details.
| Country | Elasticity |
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We use machine learning approaches together with our elasticity estimates to predict elasticities for countries with adequate data from the Oxford University Centre for Business Taxation, Orbis, and the World Bank.
| Country | Predicted ETI |
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We calculate the Marginal Value of Public Funds (MVPF) for a marginal corporate tax cut. The MVPF measures how economic value is generated for each dollar of government revenue lost. Countries with larger elasticities face larger efficiency costs and benefit more from lowering their corporate tax rate, resulting in higher MVPFs. Country-level MVPFs are computed using our predicted elasticities together with effective corporate tax rates from the Oxford University Centre for Business Taxation (reported below). These rates reflect effective, rather than statutory or necessarily current, corporate tax burdens. These calculations follow the framework developed by Hendren and Spring-Keyser, "A Unified Welfare Analysis of Government Policies".
| Country | MVPF | Elasticity | ETR |
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We collaborate with researchers and tax authorities to build comparable evidence on how corporate tax policy shapes firm behavior.
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A unified framework ensuring all elasticity estimates are directly comparable across countries
Analysis based on tax return data from national revenue agencies, covering millions of firms across partner countries.
Exploits bunching at zero taxable income kink using recent advances in bunching methodology for identification.
Standardized estimation package ensures methodological consistency and direct cross-country comparability.
Building the global corporate elasticity database is a collaborative effort. We encourage researchers and tax authorities to contribute their work and help expand our understanding of corporate tax responsiveness worldwide.
Explore our working paper and related research outputs.