Leigh Thompson of Kellogg School of Management in Illinois warns that, Teams are not always the answer—teams may provide insight, creativity and knowledge in a way that a person working independently cannot; but teamwork may also lead to confusion, delay and poor decision-making.

Nobody flourishes in a gloomy environment with irresponsible staff and a poor safety record.

In 1972, for instance, the Soviets, recognizing their poor harvest early, quietly cornered the world wheat market.

An elderly person who describes herself as in poor health, therefore, might be no less depressed in assisted -86 living ( ' , even if her children preferred it) than in a nursing home.

The report warns that 200 million poor workers are at risk of joining the ranks of people living on less than two dollars per day in the past three years.

Students who don’t get enough sleep have poor attendance and lower grades.

Meanwhile, there are complaints that poor service at London’s major airports is?discouraging foreigners from doing? ?business in Britain.

In particular, attributing poor performance to a lack of ability depresses motivation more than does the belief that lack of effort is to blame.

To help quantify ( ' , 量化 ) the costs of a poor diet, I recently tried to estimate this impact in terms of a most famous food, the burger ( ' , 漢堡包 ).

They remain poor for the rest of their lives.

Most of these dated back to the 1960s and 70s and were in a poor state of repair.

Dr.Ben Carson grew up in a poor single-parent household in Detroit.

Half a century later GM is a typical example of poor management.

In March, General Motors' chief executive was fired by Mr Obama for poor management

SAT scores began dropping in 1963;today,on average,30% of students do not complete high school in four years, a figure that rises to 50% in poor urban neighborhoods.

They are often located in poor neighborhoods

Along with the deaths, the report said that the lives of 325 million people, primarily in poor countries, were being seriously affected by climate change.

Annan stressed the need for the negotiations to focus on increasing the flow of money from rich to poor regions to help reduce their vulnerability to climate hazards while still curbing the emissions of the heat-trapping gases

More than 90% of the human and economic losses from climate change are occurring in poor countries, according to the report.

Malnutrition has caused serious health problems in poor countries

How rich and poor regions can share responsibility in curbing global warming.

How rich countries can better help poor regions reduce climate hazards

Physical symptoms listed include dry eyes, backaches, skipping meals, poor personal hygiene (衛生) and sleep disturbances.

As a result of the committee's conclusion, the branch manager Mr David Roasi reported that he had talked with McLaughlin about his extremely poor driving record.

Most people believe that reading in dim light causes poor eyesight, but that is untrue.

To protest against the poor working conditions

For others, it is a time of boredom, loneliness and poor health.

An elderly person who describes herself as in poor health, therefore, might be no less depressed in assisted living even if her children preferred it than in a nursing home.

Born the 16th child to poor parents in Paris in either 1783 or 1784, a young Careme was suddenly abandoned at the height of the French Revolution.

I have always been a poor test-taker.

Meanwhile, there are complaints that poor service at London's major airports is discouraging foreigners from doing business in Britain.

Poor negotiators remain like that and go on losing negotiations.

Students who don't get enough sleep have poor attendance and lower grades.

To help quantify the costs of a poor diet, I recently tried to estimate this impact in terms of a most famous food, the burger.

While rich parents are more concerned with their children's psychological well-being, poor parents are more worried about their children's safety.

The retail giant said the poor financial performance this year has pushed it to begin implementing $400 million in cost-cutting measures.

The lives of children from rich and poor American families look more different than ever before.

The increasing differences in child rearing between rich and poor families reflect growing social inequality.

The cycle continues: Poorer parents have less time and fewer resources to invest in their children, which can leave children less prepared for school and work, which leads to lower earnings.

The company blamed much of the poor performance in November and December on unseasonably warm weather.

Nonetheless, 20% of well-off parents say their children's schedules are too hectic, compared with 8% of poorer parents.

Less-educated parents, and poorer and black and Latino parents are more likely to believe that there is no such thing as too much involvement in a child's education.

In poor families, meanwhile, children tend to spend their time at home or with extended family.

Direct subsidies to research and development have been adopted by some governments but are a poor substitute for a carbon price: they do only part of the job, leaving in place market incentives to over-use fossil fuels and thereby add to the stock of atmospheric greenhouse gases without regard to the collateral ( ' , 附帶的) costs.

But 50% of poor parents say it is extremely important to them that their children earn a college degree, compared with 39% of wealthier parents.

American parents, whether rich or poor, have similar expectations of their children despite different ways of parenting.

While the practice carries serious health risks for many, those dangers are outweighed by the social and economic gains for poor urban farmers and consumers who need affordable food.

The report focused on poor urban areas, where farms in or near cities supply relatively inexpensive food.

Poor countries will have to bear the cost for rich nations' economic development.

It underestimates students' ability to tell good teachers from poor ones.

In poor, dry regions, untreated wastewater is the only viable irrigation source to keep farmers in business.

In other words, poor and rich both over-exploit the natural world, but for different reasons.

Examples show that both rich and poor countries exploited the environment for economic progress.

Clearly, richer societies are able to provide environmental improvements which lie well beyond the reach of poorer communities.

But there are also many examples of growing wealth by trashing the environment, in rich and poor parts of the world alike, whether through unregulated mineral extraction, drastic water use for agriculture, slash-and-burn farming, or fossil-fuel-guzzling ( ' , 大量消耗) transport.

As countries become richer, they produce more greenhouse gases; and the impact of those gases will fall primarily in poor parts of the world.

And the World Resources Institute ( ' , WRI) in its World Resources 2005 report, issued at the end of August, produced several such examples from Africa and Asia; it also demonstrated that environmental degradation affects the poor more than the rich, as poorer people derive a much higher proportion of their income directly from the natural resources around them.

Now, a new study that began with about 1,000 children in New Zealand has tracked how a child’s low self-control can predict poor health, money troubles and even a criminal record in their adult years.

There's a lot for students to complain about: the repayment threshold for paying back loans will be frozen for five years, meaning that lower-paid graduates have to start repaying their loans; and maintenance grants have been replaced by loans, meaning that students from poorer backgrounds face higher debt than those with wealthier parents.

The 83% of American employees who are stressed about their jobs – up from 73% just a year before – say that poor compensation and an unreasonable workload are their number-one sources of stress.

have placed religious beliefs above party politicshave bridged the gap between the rich and the pooroffer poor children more chances to climb the social laddersuffer from higher levels of racial and economic segregationFamily structure.

That helps explain why, as I'm First's Rubinoff indicated, the schools to which these students end up resorting can end up being some of the poorest matches for them.

So what factors, at the community level, do predict if poor children will move up the economic ladder as adults? What explains, for instance, why the Salt Lake City metro area is one of the 100 largest metropolitan areas most likely to lift the fortunes of the poor and the Atlanta metro area is one of the least likely?Harvard economist Raj Chetty has pointed to economic and racial segregation, community density, the size of a community's middle class, the quality of schools, community religiosity, and family structure, which he calls the single strongest correlate of upward mobility.

Per-capita local government spendingIn other words, communities with high levels of per-capita income growth, high percentages of two-parent families, and high local government spending—which may stand for good schools— are the most likely to help poor children relive Horatio Alger's rags-to-riches story.

It is better to start from the community to help poor children move up the social ladder.

Inequality is dangerous, he argued, not merely because it doesn't look good to have a large gap between the rich and the poor, but because inequality itself destroys upward mobility, making it harder for the poor to escape from poverty.

Chetty finds that communities like Salt Lake City, with high levels of two-parent families and religiosity, are much more likely to see poor children get ahead than communities like Atlanta, with high levels of racial and economic segregation.

A number of prominent economists have also argued that it's harder for the poor to climb the economic ladder today because the rungs（橫檔） in that ladder have grown farther apart.

True, not all U.S.students can match theperformance of their foreign counterparts, but the American institutions do offer students from rich and poor families alike the chance to realize their full potential.

But onlyif they operate at near capacity,otherwise, their overall efficiency is poor.

A number of prominent economists have also argued that it's harder for the poor to climb the economic ladder today because the rungs (橫檔) in that ladder have grown farther apart.

And the World Resources Institute WR in its World Resources 2005 report, issued at the end of August, produced several such examples from Africa and Asia; It also demonstrated that environmental degradation affects the poor more than the rich, as poorer p

But poor diet and physical inactivity also each increase the risk of heart disease and have a role to play in the development of some cancers.

But there are also many examples of growing wealth by trashing the environment, in rich and poor parts of the world alike, whether through unregulated mineral extraction, drastic water use for agriculture, slash-and-burn farming, or fossil-fuel-guzzling t

Chetty finds that communities like Salt Lake city, with high levels of two- parent families and religiosity, are much more likely to see poor children get ahead than communities like Atlanta, with high levels of racial and economic segregation.

Direct subsidies to research and development have been adopted by some governments but are a poor substitute for a carbon price: they do only part of the job, leaving in place market incentives to over-use fossil fuels and thereby add to the stock of atmo

For example, in the United States, a family can be considered poor if their income is less than 50% of the national average family income.

In other words, communities with high levels of per-capita income growth, high percentages of two-parent families, and high local government spending — which may stand for good schools — are the most likely to help poor children relive Horatio Alger's rag

In poor, dry regions, untreated waste water is the only viable irrigation source to keep farmers in business.

Movement out of city centers was widespread, and downtown tenants were predominantly made up of the working poor.

Now, a new study that began with about 1,000 children in New Zealand has tracked how a child's low self-control can predict poor health, money troubles and even a criminal record in their adult years.

Our own decision-making abilities can become depleted over the course of the day causing indecision or poor choices, but choosing on behalf of someone else is an enjoyable task that doesn't suffer the same pitfalls.

Perhaps the most dramatic example of the negative consequences of poor communication between scientists and the public is the issue of climate change, where a variety of factors, not the least of which is a breakdown in the transmission of fundamental cli

Second, they rely on a system that has long been marked by a poor relation between national health and social care services.

So this shows negative consequences of poor dietary intake can occur even when body weight has not changed conspicuously.

So what factors, at the community level, do predict if poor children will move up the economic ladder as adults?

The 83% of American employees who are stressed about their jobs – up from 73% just a year before – say that poor compensation and an unreasonable workload are their number-one sources of stress.

The relatively poor live in high-income countries but they do not have a high income themselves.

These days, though, the divide between rich and poor is greater than it has ever been.

Whereas some of the low-self-control study members are more likely to be single parents with a very low income and the parent is in poor health and likely to be a heavy substance abuser.

Yet, she noted, many young people are especially unwilling to take risks at school—afraid that one low test score or poor grade could cost them a spot at a selective university.