Examples of trough in the following topics:
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- Business cycles are identified as having four distinct phases: expansion, peak, contraction, and trough.
- The slowing ceases at the trough and at this point the economy has hit a bottom from which the next phase of expansion and contraction will emerge.
- In the United States, it is generally accepted that the National Bureau of Economic Research (NBER) is the final arbiter of the dates of the peaks and troughs of the business cycle.
- An expansion is the period from a trough to a peak, and a recession as the period from a peak to a trough.
- The phases of a business cycle follow a wave-like pattern over time with regard to GDP, with expansion leading to a peak and then followed by contraction leading to a trough.