year={2001},
institution={National bureau of economic research}
}
==Harford et al 2006==
@incollection{harford2012corporate,
title={Corporate governance and firm cash holdings in the US},
author={Harford, Jarrad and Mansi, Sattar A and Maxwell, William F},
booktitle={Corporate Governance},
pages={107--138},
year={2012},
publisher={Springer}
}