Published in Andrew Heiss's blog
Author Andrew Heiss
![](https://www.andrewheiss.com/blog/2021/12/01/multilevel-models-panel-data-guide/index_files/figure-html/plot-global-hypothetical-year-year-1.png)
In most of my research, I work with country-level panel data where each row is a country in a specific year (Afghanistan in 2010, Afghanistan in 2011, and so on), also known as time-series cross-sectional (TSCS) data.