Loss of credibility, if it comes, can bite hard and fast.

Likewise, delegating security to allies can have perverse psychological effects.

And availability of outdoor lighting can prevent violence against women and girls.

This regularly engulfs him in controversy, but it can serve an educational purpose.

More problematic, a misdiagnosis can lead to treatments that impair the healing process.

An inability to resolve the distributional and fairness problem can produce gridlock, paralysis, and prolonged stagnation.

Such an approach served the world well during the Cold War it could do the same now.

Fifth, persistent QE can lead to asset bubbles both where it is implemented and in countries where it spills over.

The transfer of military equipment and technology to third countries could affect regional security and prompt a revision of threat assessments.

For starters, making a system very resilient in one way can cause it to lose resilience in other ways.

The incursion, which lasted eight days, could have drawn the armed forces of Kurdistan into a broader regional war.

The career of his political mentor, Menachem Begin, demonstrated that distorted analogies between past and present can inspire irresponsible policies.

Spending, especially on investments in education, technology, and infrastructure, can actually lead to lower long term deficits.

This will inevitably make fixed exchange rate links crack under pressure as the same monetary policy cannot possibly be appropriate for both regions.

A disorderly rush to the exit could lead to a dollar collapse, a spike in long term interest rates, and a severe double dip recession.

As in sports, so in economic life government commitment can start a virtuous circle of success, while government neglect can trigger a vicious circle of decline.

A sustainable economic growth rate that helps reduce poverty and inequality can be achieved only with a skilled and innovative labor force.

But, even in advanced countries, the influence of vested interests can lead to collective action failures and, in turn, to incorrect benchmark rates.

An attack on Iran might, however, produce precisely the effect that Netanyahu seeks to avoid.

Extreme fiscal imbalance can also lead to a growth trap in which fiscal consolidation has such a large negative effect on growth as to be self defeating.

Thus, it is possible that increased government spending say, to boost car purchases could exacerbate the misalignment.

However, studies have shown that very weak impairment of IGF 1 action can increase animal lifespan with little effect on body size.)

Both effects can lead to increased trade in illiquid assets today, and unlock lending, though this outcome may require significant government outlays.

Low cost credit is unlikely to have a significant impact on consumption in the short run, but it can produce asset inflation and misallocations.

De Grey believes that even modest progress in this area over the coming decade could lead to a dramatic extension of the human lifespan.

On the contrary, economic growth in such contexts can be and often is politically destabilizing.

Indeed, while closing an economy may insulate it from shocks, it can also result in stagnation and even severe homegrown crises.

Nor can this path lead to a United States of Europe, simply because a large part of Europe refuses to follow it.

The international community must act quickly to force the Israelis to abandon its deterrence strategy and instead work on reaching an understanding that can result in a cessation of attacks by both sides.

The necessity for an opt in or opt out declaration by the host State should be carefully considered because it could create an unnecessary bottleneck in the implementation of the protocol.

A reduction in unit labor costs can also increase competitiveness only to the extent that it actually results in price reductions.

The development of a conscious robot that (who?) was not widely perceived as a member of our moral community could therefore lead to mistreatment on a large scale.

In particular, the influence of corporations on politicians and political outcomes can be expected to weaken the rules that protect shareholders and ensure that companies are well governed.

But, given the high speed data transmission capacities of current telecommunications and information technology, it is now possible to reduce business travel significantly. Whereas the outsourcing phenomenon is attenuating the need for labor migration, domestic migration can be limited further by the use of home offices, which can eventually reduce stress on real estate, public transport networks, roads, and airports.

Internationally, where order is more tenuous, residual concerns about the coercive use of force, even if a low probability, can have important effects.

It may rain.

Economists long ago recognized that it is theoretically possible that the emergence of new growth poles abroad does more harm than good to an economy.

The fibrosis in cirrhosis can lead to destruction of other normal tissues in the liver including the sinusoids, the space of Disse, and other vascular structures, which leads to altered resistance to blood flow in the liver and portal hypertension.

A global effort, similar to the response to the Asian tsunami, could change this disastrous situation, saving more than one million lives per year.

The horrible truth is that failure to eradicate the root causes of terrorism is almost certain to extend the Age of Terrorism, it is not clear that they really can be eradicated.

Perhaps it will snow tomorrow.

Alice may possibly come.

She may not come.

Possibly she will not come.

It's possible that she won't come.