To match List I with List II in the context of time series, consider the descriptions provided:
- Secular movements: These refer to long-term trends observed over years or decades. They are not tied to any specific cyclic event but show a general direction over time, such as growth or decline. Match: III. Long term trends
- Seasonal variations: These are predictable changes that recur annually, often due to climate or cultural events. For example, prices rising before a festival like Deepavali reflects such variation. Match: I. Price increase before Deepavali
- Cyclic variations: These occur over several years, showing a pattern of rise and fall. Unlike seasonal variations, they are not tied to a calendar cycle but occur over longer intervals, typically tied to economic cycles. Match: IV. Recurring rise and decline in production
- Irregular variations: These are unpredictable changes due to unforeseen events such as wars, floods, etc. Their occurrence and impact do not follow a predictable pattern. Match: II. Increase in price of gold during a major war
Thus, the correct matching is: A-III, B-I, C-IV, D-II.