Panel Time Series

The econometric theory for panel data was largely developed for the case where N, the number of units (e.g. individuals or firms) was large, but T the number of time-periods was small. Time-series analysis dealt with cases where N was small but T was large.

Recently, data-sets where both N and T are large and the same order of magnitude have become more common. Examples are the Penn World Tables, where the units are countries and financial data where the units are firms. These data allow much more flexible treatment of heterogeneity than small T panels but raise time-series issues such as unit roots and cointegration.

There will be a detailed set of lecture notes and a set of practical exercises, which would include the estimation output from the practicals. The practicals will use a panel of international financial data to estimate and test various parity conditions. The software package that will be used is LIMDEP.