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Grouped patterns of heterogeneity across time and space: A hierarchical clustering approach

Robust estimation and the impact of outliers on causal Inference

In recent decades, the estimation of causal effects has attracted increasing professional interest. However, the success of this effort depends on the ability to generate precise estimates that can aid in the implementation of new laws and …

Treatment Spillover Effects with Group Size Variation: Evidence from Lesotho

Nonparametric Penalized Spatial Modelling

Estimation of stochastic frontier models with spatial inefficiency

This paper proposes a stochastic frontier panel data model in which unit-specific inefficiencies are spatially correlated. In particular, this model has simultaneously three important features: i) the total inefficiency of a productive unit depends …