Opponents also claim that the absence of a market mechanism may slow innovation in treatment and research.

Technology executives have hotly opposed such measures, which they say would slow innovation, make their devices more expensive and do little to stop piracy.

After the presentation, Mr. Kilts said the company needed to be more careful and thoughtful about when it rolled out products but would not necessarily slow innovation.

Excessive regulation slows innovation, imposes needless costs on investors, and stifles competitiveness and job creation.

But while retooling older drugs can result in useful products, some experts say the practice is not likely to produce home runs and could slow innovation.

If the talent drought continues, the entire national economy may feel the effect of lost wages and slowed innovation.

Organizations and researchers against EPR claim that the mandate would slow technical innovation and impede technological process.

The President contends that such limits will lead to the rationing of care, will slow medical innovation and reduce access to advanced technology that Americans now take for granted.

The current recession, the plunge in venture-capital spending and the traumas facing many companies are bound to slow innovation, leading to consolidation and retrenchment.

He implies that an expanding property-value market may actually slow innovation and produce a less human-centered community.