San Diego businessman David Palella, however, thinks he has found a way to overcome these difficulties.
How these difficulties are handled separates the leaders from the ones who fall behind.
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These difficulties could be the reason Facebook has filed a lawsuit against StudiVZ only in California.
We lived with these difficulties in the hope that one day we would return.
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Even assuming all these difficulties are resolved, the fate of the euro will remain uncertain.
If these difficulties can be overcome, though, the future looks bright to all involved.
Because we have a plan to get through these difficulties - and to get through them together.
"It is hard to say who is having a harder time getting through these difficulties, " he said.
These difficulties include an oppressive tax system and a labour code that makes firms wary of hiring.
Despite these difficulties, the percentage of poorest girls out of school has fallen from 78% to 62%.
These difficulties - not to mention social differences - make comparison of crime rates between countries difficult.
With skill, however, he turns these difficulties to advantage, bringing to bear considerable talents of his own.
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To add to these difficulties, few Vietnamese have much experience of any but the most basic form of capitalism.
Incompetent, antiquated software causes many of these difficulties, but there's an underlying problem.
Even before these difficulties, in many countries the rewards of reform were disappointing.
Yet for Frank-Walter Steinmeier, Germany's foreign minister, these difficulties are no reason to pull the troops out of Afghanistan.
In the abandoned farm, where he sleeps on the concrete floor with four others, I put all these difficulties to him.
The final result may be delayed by an investigation of these difficulties.
Dr Contreras-Vidal's approach gets round these difficulties by employing electroencephalography (EEG), which measures those electrical signals from the brain that reach the scalp.
As the test cars paraded outside Sacramento's capitol building, their designers were no doubt keeping their fingers crossed that these difficulties will go away.
Fortunately, there are signs that both these difficulties can be overcome.
These difficulties, together with inherent vulnerabilities such as confidence-sensitivity, interconnectedness, and opacity of risk, have diminished the longer term profitability and growth prospects of these firms.
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"I am confident that two mature democracies such as ours will overcome these difficulties, " said the ambassador, speaking at a business event in New Delhi on Wednesday.
"I am confident that two mature democracies such as ours will overcome these difficulties, " said the ambassador, speaking at a business event in New Delhi earlier on Wednesday.
These difficulties can be seen in the data from the two regions highlighted by ILO research as having the highest youth unemployment rates - the Middle East and North Africa.
Anderson seems to understand these difficulties as well as anyone, but feels confident that BlackBerry 10 offers up a unique enough experience to be a no-brainer for developers big and small.
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But these difficulties are not peculiar to Islamic economics.
"As the Welsh government, we are taking clear actions to address some of these difficulties and are doing all we can within our powers to help people back into jobs or training, " she said.
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