Wooldridge, Jeffrey M., Econometric Analysis of Cross Section and Panel Data (Cambridge:
MIT Press, 2002).
Wooldridge, Jeffrey M., “Cluster-Sample Methods in Applied Econometrics,” American Eco-
nomic Review, 93(2) (2003), 133—138.
24
Wooldridge, Jeffrey M., Econometric Analysis of Cross Section and Panel Data (Cambridge:
MIT Press, 2002).
Wooldridge, Jeffrey M., “Cluster-Sample Methods in Applied Econometrics,” American Eco-
nomic Review, 93(2) (2003), 133—138.
24