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Working Paper
Consumption, Wealth, and Income Inequality: A Tale of Tails
We provide evidence that the distributions of consumption, labor income, wealth, and capital income exhibit asymptotic power-law behavior with a strict ranking of upper tail inequality, in that order, from the least to the most unequal. We show analytically and quantitatively that the canonical heterogeneous-agent model cannot replicate the proper ranking and magnitudes of these four tails simultaneously. Mechanisms addressing the wealth concentration puzzle in these models through return heterogeneity lead to a mirror consumption concentration puzzle. We match the cross-sectional data on ...
Discussion Paper
Understanding Trade Fragmentation
A large empirical literature, including Gopinath et al. (2025), finds that geopolitical distance has become an increasingly important determinant of bilateral trade flows. This work has fueled debate about the consequences of fragmentation and the extent to which global value chains are being reshaped.
Discussion Paper
The Sectoral Evolution of China’s Trade
Since 2018, Chinese officials have been emphasizing the need for China to achieve greater self-reliance. As discussed in de Soyres and Moore (2024), China has reduced its reliance on imported inputs, while simultaneously becoming more dependent on foreign demand to absorb its manufactured goods. In this Note, we look at the evolution of the sectoral composition of China's exports and imports and investigate its similarity with the sectoral composition of the trade baskets of advanced economies (AEs). First, using a gravity model, we show that bilateral trade flows are significantly influenced ...
Working Paper
Partner Similarity and The Sectoral Evolution of China's Trade
We study how the sectoral composition of exports and imports shapes bilateral trade flows. Building on earlier similarity indices, we introduce the Partner Similarity Index (PSI), which measures sectoral alignment between a country’s export structure and its partner’s import demand. Embedded in a gravity framework, PSI is a strong predictor of bilateral trade flows after accounting for standard gravity determinants, trade policy variables, and high-dimensional fixed effects. Applied to China and advanced economies, the index reveals growing asymmetries: China’s export basket is ...