This paper proposes a residual-based Lagrange Multiplier (LM) test for slope homogeneity in large-dimensional panel data models with interactive fixed effects. We first run the panel regression under ...

This is a preview. Log in through your library . Abstract Applied sciences, including longitudinal and clustered studies in biomedicine, require analyses of ultrahigh-dimensional linear mixed-effects ...

The regression models were specified for hospital-level fixed effects and clustering by HRR to take into account the correlation of the HRR-level independent variables.

Secondary data from the Medicare Cost Report (MCR), the Agency for Healthcare Research and Quality (AHRQ), and American Hospital Association Annual Survey (AHA) was used to test hypothesized ...