The flaw in their theory was that forests need periodic episodes of destruction to clear out old growth and dead wood so that new, more vigorous growth can flourish.
Mr Riordan's re-election suggests that the city is eager for another round of vigorous growth.
But with nearly a third of his six-year term gone, Mr Lagos needs vigorous growth sooner rather than later.
"The Brazilian dropdown reinforces the question of whether the country is doing enough to recover vigorous growth rates, " says Mr Wood.
But starting in 1983, the inflation beast defeated, a new era of vigorous growth got under way, based on innovation and long-term investment.
After all, the 1980s experienced vigorous economic growth while inflation plummeted by over two-thirds.
After all, the 1980s experienced vigorous economic growth while inflation plummeted by more than two thirds.
With sustained vigorous economic growth, 40 years from now the lowest income Americans will live better than the middle class of today.
With sustained, vigorous economic growth, 35 years from now the lowest income Americans will live at least as well as the middle class of today.
Specifically, the ultimate answer to restoring prosperity and vigorous job growth lies in policy reforms that create a more favorable environment for the creation and growth of new businesses.
However, it warned that in order "to sustain vigorous and socially inclusive growth over the longer run, renewed reform momentum is required".
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Optimists argue that every deep post-war recession has been followed by a vigorous recovery and that growth will be well above its trend rate in 2010.
Brazil has combined a vigorous stimulus with steps towards trimming its growth-throttling payroll taxes.
Apart from positive business fundamentals, the advice from seasoned pros is to focus on vigorous potential market performance combined with solid dividend growth prospects.
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But in fact he and his colleagues made a surprising finding at Oxford: that fetal lambs spent most of the day making vigorous breathing movements, and that these were essential to the growth of their lungs.
First, there is a vigorous debate about fiscal policy taking place within the government, with some officials advocating more spending to boost growth and others wanting to maintain a tight stance to allow interest rates to fall further.
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