Tax-loss carryforwards

This old 1987 Auerbach and Poterba paper (pdf) came immediately to mind:

The most important finding is that tax-loss carryforwards are highly persistent and significantly affect investment incentives for some firms. Nearly 15% of the firms in our sample had tax-loss carryforwards in 1984, and the fraction is much higher in some industries.
And this:
The stock of tax-loss carryforwards in the United Kingdom was nearly three times as large as the annual revenue yield of the corporation tax.
Offhand, I couldn’t say exactly how closely this result relates to recent revelations about the taxes of you-know-who.  For one thing, tax law has been changed a few times since that paper was written.


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