These sorts of kick-start measures add uncertainty to the economy.

His resignation at this key time will be seen as adding additional uncertainty to the eurozone crisis.

As business investment often operates over decades, this adds risk and uncertainty to their plans.

Mr. Chun's comments today added new uncertainty to the campaign.

Most of those deals are in various stages of restructuring, adding uncertainty.

Limitations of input data, shaking estimates, and loss models may add uncertainty.

Adding further uncertainty is the question of East German labor's staying power.

That would add both complexity and uncertainty to investment decisions.

Adding further uncertainty over future regulation will not help them to plan or look after our interests as customers and shareholders.

Whatever remedies, if any, are proposed by the judge in the case will add uncertainty to this technology bellwether.