14.1 Trend
Trend captures the general direction of the time series.
- Long-run increase or decrease over time (overall upward or downward movement)
- Data taken over a long period of time
- For example, increasing job growth year over year despite seasonal fluctuations.
- Trend can be increasing, decreasing, or constant.
- It can increase or decrease in different ways (linearly, exponentially, or in other ways)