Bertrand Garbinti

@bgarbinti.bsky.social

Public Economist at CREST, Professor at ENSAE, Programme Director (Tax System Programme) at the Institut des Politiques Publiques

How does wealth heterogeneity shape consumption? Evidence from household panel data in 5 euro-area countries shows that MPCs fall with wealth, housing wealth matters across countries, and consumption responds more where mortgages are larger, consistent with a collateral channel.

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What drove top inequality in France since 1984? Markups, taxes, and asset prices, but mainly through saving-rate responses. The paper quantifies the mechanisms in a heterogeneous-agent model with three assets (deposits, housing and capital) and disciplined by DINA data.

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