In the former case, the usual forecasting techniques can furnish suitable values; in the latter (configuring an unusual event) there is a component of unpredictability which affects the results.
Even under these modest climate changes, considered "optimistic" compared to business-as-usual forecasts, the authors found that population movements could be dramatic.
Weber, like Dismukes, pointed to sizable gas supplies nationally and the government's warmer-than-usual forecast for the southern and central U.S. "If gas prices remain below a year ago, and customers use the same amount or less heat at home than last winter, their bills could be smaller this winter," Weber said.
Turnout is expected to be high, regardless of the usual February forecast for much of the state: rain.
They were used in solving a specific problem: Radical changes of the electricity Tariff System, introduced in Serbia in 2001, led to considerable and lasting annual peak load reductions, making the usual, extrapolating forecasting methods dysfunctional.
Then added, "Have you been to one of them?" Gurley went back to his usual economic forecasting for most of the discussion, adding, "Silicon Valley has entered a period that is speculative and unsustainable," and "I personally wish the market would bring them all down so we can get to more realistic valuations".
"Economic data bearing on past months or quarters may be less useful than usual for our forecasts," he said.
In today's world, a management microcosm shaped by the past and sustained by the usual types of forecasts is inherently suspect and inadequate.
But the OBR warned that there was more uncertainty than usual surrounding its forecasts – and some commentators suggested there could be worse to come.
The extreme market action and the uncertainties hanging over the economy and the financial system have made strategists and portfolio managers more circumspect than usual when issuing forecasts.
