A True panel vs a Pooled Cross section o Often loosely use the term panel data to refer to any data set that has both a cross sectional dimension and a time-series dimension o More precisely it's only data following the same cross-section units over time o Otherwise it's a pooled cross-section Economics 20- Prof andersonEconomics 20 - Prof. Anderson 2 A True Panel vs. A Pooled Cross Section Often loosely use the term panel data to refer to any data set that has both a cross￾sectional dimension and a time-series dimension More precisely it’s only data following the same cross-section units over time Otherwise it’s a pooled cross-section