Identification-Robust Inequality Analysis
Emmanuel Flachaire (),
Lynda Khalaf and
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Jean-Marie Dufour: McGill University and CIREQ
Lynda Khalaf: Carleton University
Abdallah Zalghout: Carleton University
No 03-2020, Cahiers de recherche from Centre interuniversitaire de recherche en économie quantitative, CIREQ
We propose confidence sets for inequality indices and their differences, which are robust to the fact that such measures involve possibly weakly identified parameter ratios. We also document the fragility of decisions that rely on traditional interpretations of - significant or insignificant - comparisons when the tested differences can be weakly identified. Proposed methods are applied to study economic convergence across U.S. states and non-OECD countries. With reference to the growth literature which typically uses the variance of log per-capita income to measure dispersion, results confirm the importance of accounting for microfounded axioms and shed new light on enduring controversies surrounding convergence.
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Working Paper: Identification-robust Inequality Analysis (2020)
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Persistent link: https://EconPapers.repec.org/RePEc:mtl:montec:03-2020
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