Tax incentives complicate the filing process for most people and tend to have perverse consequences.

This sort of skepticism about the significance of numbers has some perverse consequences.

This last factor is interesting because it shows that state-of-the-art equipment can sometimes have perverse consequences.

I think green deal is a lot better than nothing, and less likely to have perverse and counterproductive consequences than many other possible interventions.

Indeed, they could sometimes have perverse consequences as public service organisations changed their priorities to meet centrally set targets.

The ultimate perverse consequence of Livingston's resignation is that it has allowed Clinton to appear magnanimous.

If Carr were saying only that warfare against civilians has perverse consequences, he would be pointing out something worth remembering.

Institutions are already spending large sums on exam fees, and any further burden would be a perverse consequence.

But our crazy-quilt approach to gambling leads to a raft of perverse consequences.

Are mute swans, searching for the foods they like, a natural phenomenon, or a perverse consequence?