Numbers are not studied, they are crunched.
These programs have been widely studied; they work.
They think if they've studied they should be able to walk straight into a good job.
A new airport is being studied, they add, but mega-projects do not boost growth quickly.
Emergency visits for playground accidents declined to 98,000 from 187,000 a year over the period studied, they said.
The authors say that among the unsuccessful companies they studied, they found "a pervasive atmosphere of fear and distrust".
As the birds were held and studied, they sat quietly with their yellow eyes wide, looking curiously at the captors.
A decade ago, when the grandchildren of men and women exposed to the famine were studied, they, too, were reported to have had higher rates of illness.
Because butterflies are so well studied, they are one of the few groups which allow scientists to track progress towards that goal, said Dr Warren.
Many scientists firmly oppose the idea because a number of lines must be studied, they say, in order to find the few that have the most therapeutic promise.
